Trygve Christian Eftestøl

Professor

Trygve Christian Eftestøl

Kontakt

Telefon: 5183 2035

E-post: trygve.eftestol@uis.no

Rom: KE E-435

Organisasjonsenhet

Det teknisk- naturvitenskapelige fakultet

Institutt for data- og elektroteknologi

Kort om meg

I am currently a professor in information technology at the department of electrical engineering and computerscience, University of Stavanger, Norway.

 

Currently taught courses

I am teaching Machine learning and will also be teaching signal processing from autumn 2025.

Teaching competencies

Basic course in higher education pedagogies

 

 

Dette forsker jeg på

I am interested in biomedical data analysis. My experience within this field is related to research within resuscitation and cardiac science, working with waveform analysis e.g. electrocardiograms, torax impedance and accelerometer signals for analysing relationships between therapy and patient response during resuscitation and image processing of magnetic resonance images for analysis of scar tissue related to myocardial infarction.  I am or have also been involved as a PhD supervisor and cosupervisor for projects within digital pathology, newborn resuscitation, sports medicine, coronary blood flow analysis, analysis of MRI from patients with neurogenerative diseases, analysis of MRI from patients with prostate cancer and recently I joined as a cosupervisor in a project for human activity recognition through Body and Home Wireless Area Networks.

In the period 2008-2020 I was the leader of several programområder for forskning, for which I was also co-founder, consisting of researchers with background in various aspects of biomedical data analysis.  This research group developed into Biomedical Data Analysis Laboratory (BMDLab) for which I have been deputy leader since 2020.  The group encompasses signal and image processing and statistical analysis applied to a wide variety of biomedical projects. The group is involved in multidisciplinary research with both national and international collaborators.

Akademisk bakgrunn

I have a Ph.D. degree in signal processing from the Electrical and Computer Engineering Department at the Norwegian University of Science and Technology, NTNU, in collaboration with HiS, Stavanger, Norway.  Title of thesis: Title of thesis: Signal Analysis of Out-of-hospital Cardiac Arrest Electrocardiograms for Decision Support during Cardiopulmonary Resuscitation. Defense date was September 22.nd 2000.
I obtained the degree of sivilingeniør (M.Sc)from from Electrical and Computer Engineering department at HiS, Stavanger, Norway. Title of thesis: Classification of Cardiac Arrhythmias in Electrocardiograms:
   Filter Bank Analysis and Signal Modelling (Klassifikasjon av hjerterytmer i EKG signaler: Filterbankanalyse og Signalmodellering).

I am a senior member of IEEE.  I was board member of Norsk Forening for Signalbehandling 2002-2006.  I am a board member of the Cognitive Lab at UiS since 2025.

Følg meg på nett

BMDLab – Biomedical data analysis laboratory

Publikasjoner

Vitenskapelige publikasjoner

Mahdieh Khanmohammadi; Aziz Zafar; Trygve Christian Eftestøl; Kolbjørn Kallesten Brønnick (2025) Automatic Classification of Neurodegenerative Disorders Using EEG Data. I: Frontiers of Artificial Intelligence, Ethics and Multidisciplinary Applications. ISSN 2731-8125.

Eirik Unneland; Anders Norvik; Daniel Bergum; David G. Buckler; Abhishek Bhardwaj; Trygve Christian Eftestøl; Elisabete Aramendi; Trond Nordseth; Benjamin S. Abella; Jan Terje Kvaløy; Eirik Skogvoll (2025) Re-arrest immediately after return of spontaneous circulation: A retrospective observational study of in-hospital cardiac arrest. I: Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. Volum 69. DOI: 10.1111/aas.14567

Vidar Frøysa; Gøran Jansson Berg; Erlend Gyllensten Singsaas; Trygve Christian Eftestøl; Leik Woie; Stein Ørn (2025) Texture-based probability mapping for automatic assessment of myocardial injury in late gadolinium enhancement images after revascularized STEMI. I: International Journal of Cardiology. ISSN 0167-5273. Volum 427. DOI: 10.1016/j.ijcard.2025.133107

Jakob Svane; Tomasz Wiktorski; Trygve Christian Eftestøl; Stein Ørn (2024) Alterations in the autonomic and haemodynamic response to prolonged high-intensity endurance exercise in individuals with coronary artery calcification. I: Experimental Physiology. ISSN 0958-0670. Volum 110. s.454-463. DOI: 10.1113/EP092201

Jakob Svane; Tomasz Wiktorski; Trygve Christian Eftestøl; Stein Ørn (2024) Machine Learning Methods For Classification of Individuals With Coronary Artery Calcification. I: IEEE International Symposium on Computer-Based Medical Systems. Online ISSN 2372-9198. DOI: 10.1109/CBMS61543.2024.00013

Mohanad A M Abukmeil; Øyvind Meinich-Bache; Trygve Christian Eftestøl; Siren Rettedal; Helge Myklebust; Thomas Bailey Tysland; Hege Langli Ersdal; Estomih Mduma; Kjersti Engan (2024) Analysis and knowledge extraction of newborn resuscitation activities from annotation files. I: BMC Medical Informatics and Decision Making. Online ISSN 1472-6947. Volum 24. DOI: 10.1186/s12911-024-02736-4

Solveig Kristina Hammonds; Trygve Christian Eftestøl; Ketil Oppedal; Alvaro Fernandez Quilez (2024) Unraveling Gender Fairness Analysis in Deep Learning Prediction of Alzheimer’s Disease. I: Kai Morgan Kjølerbakken; Sanjay Misra; Hasan Ogul; Jonas Moræus Aamodt, 2024 4th International Conference on Applied Artificial Intelligence (ICAPAI). IEEE (Institute of Electrical and Electronics Engineers). ISBN 9798350349764. DOI: 10.1109/ICAPAI61893.2024.10541140

Erlend Sortland Rolfsnes; Philip Thangngat; Trygve Christian Eftestøl; Tobias Nordström; Fredrik Jäderling; Martin Eklund; Alvaro Fernandez Quilez (2024) On Undesired Emergent Behaviors in Compound Prostate Cancer Detection Systems. I: Lecture Notes in Computer Science (LNCS). ISSN 0302-9743. Volum 15199. s.73-82. DOI: 10.1007/978-3-031-73376-5_7

Trond Nordseth; Trygve Christian Eftestøl; Elisabete Aramendi; Jan Terje Kvaløy; Eirik Skogvoll (2024) Extracting physiologic and clinical data from defibrillators for research purposes to improve treatment for patients in cardiac arrest. I: Resuscitation Plus. Online ISSN 2666-5204. Volum 18. DOI: 10.1016/j.resplu.2024.100611

Trygve Christian Eftestøl; Mina Farmanbar; Tomas Royal Choat; Otto Nessa Ljosdal; Mathias Dyvik; Casper Cappelen; Vidar Frøysa; Jørn Kværness; Gøran Jansson Berg; Stein Ørn (2024) Exploring Pixel Value Scaling in the Application of Convolutional Neural Network U-Net Models for Segmentation of the Myocardium in Magnetic Resonance Images. I: Computing in cardiology. ISSN 2325-8861. Volum 51. DOI: 10.22489/CinC.2024.093

Saul Fuster Navarro; Umay Kiraz; Trygve Christian Eftestøl; Emiel Janssen; Kjersti Engan (2024) NMGrad: Advancing Histopathological Bladder Cancer Grading with Weakly Supervised Deep Learning. I: Bioengineering. Online ISSN 2306-5354. Volum 11. DOI: 10.3390/bioengineering11090909

Jon Urteaga; Andoni Elola; Anders Norvik; Eirik Unneland; Trygve Christian Eftestøl; Abhishek Bhardwaj; David Buckler; Benjamin S. Abella; Eirik Skogvoll; Elisabete Aramendi (2024) Machine learning model to predict evolution of pulseless electrical activity during in-hospital cardiac arrest. I: Resuscitation Plus. Online ISSN 2666-5204. Volum 17. DOI: 10.1016/j.resplu.2024.100598

Alvaro Fernandez Quilez; Christoffer Gabrielsen Andersen; Trygve Christian Eftestøl; Svein Reidar Kjosavik; Ketil Oppedal (2023) 3D Masked Modelling Advances Lesion Classification in Axial T2w Prostate MRI. I: Proceedings of the Northern Lights Deep Learning Workshop. Online ISSN 2703-6928. Volum 4. DOI: 10.7557/18.6787

Saul Fuster Navarro; Farbod Khoraminia; Trygve Christian Eftestøl; Tahlita C M Zuiverloon; Kjersti Engan (2023) Active Learning Based Domain Adaptation for Tissue Segmentation of Histopathological Images. I: European Signal Processing Conference. ISSN 2076-1465. s.1045-1049. DOI: 10.23919/EUSIPCO58844.2023.10290058

Jakob Svane; Tomasz Wiktorski; Stein Ørn; Trygve Christian Eftestøl (2023) Optimizing support vector machines and autoregressive integrated moving average methods for heart rate variability data correction. I: MethodsX. Online ISSN 2215-0161. Volum 11. DOI: 10.1016/j.mex.2023.102381

Jakob Svane; Tomasz Wiktorski; Stein Ørn; Trygve Christian Eftestøl (2023) Recurrent Neural Networks for Artifact Correction in HRV Data During Physical Exercise. I: Nordic Machine Intelligence (NMI). Online ISSN 2703-9196. Volum 3. s.1-12. DOI: 10.5617/nmi.10140

Eirik Unneland; Anders Norvik; Daniel Bergum; David G. Buckler; Abhishek Bhardwaj; Trygve Christian Eftestøl; Elisabete Aramendi; Trond Nordseth; Benjamin S. Abella; Jan Terje Kvaløy; Eirik Skogvoll (2023) Non-shockable rhythms: A parametric model for the immediate probability of return of spontaneous circulation. I: Resuscitation. ISSN 0300-9572. DOI: 10.1016/j.resuscitation.2023.109895

Trygve Christian Eftestøl; Mari Hognestad; Sander A. Søndeland; Ali Bahrami Rad; Elisabete Aramendi; Lars Wik; Jo Kramer-Johansen (2023) A Convolutional Neural Network Approach for Interpreting Cardiac Rhythms from Resuscitation of Cardiac Arrest Patients. I: Computing in cardiology. ISSN 2325-8861. Volum 50. DOI: 10.22489/CinC.2023.304

Jarle Urdal; Kjersti Engan; Trygve Christian Eftestøl; Øyvind Meinich-Bache; Ingunn Anda Haug; Paschal Francis Mdoe; Esto Mduma; Ladislaus Blacy Yarrot; Hussein Kidanto; Hege Langli Ersdal (2023) Automatic prediction of therapeutic activities during newborn resuscitation combining video and signal data. I: Biomedical Signal Processing and Control. ISSN 1746-8094. Volum 86. DOI: 10.1016/j.bspc.2023.105290

Neel Kanwal; Trygve Christian Eftestøl; Farbod Khoraminia; Tahlita C M Zuiverloon; Kjersti Engan (2023) Vision transformers for small histological datasets learned through knowledge distillation. I: Hisashi Kashima; Tsuyoshi Ide; Wen-Chih Peng, Advances in Knowledge Discovery and Data Mining 27th Pacific-Asia conference on knowledge discovery and data mining, PAKDD 2023, Osaka, Japan, May 25–28, 2023 : Proceedings, Part III. Springer Nature. ISBN 9783031333804. s.167-179. DOI: 10.1007/978-3-031-33380-4_13

Anders Norvik; Jan Terje Kvaløy; Gunnar Waage Skjeflo; Daniel Bergum; Trond Nordseth; Jan Pål Loennechen; Eirik Unneland; D.G. Buckler; A. Bhardwaj; Trygve Christian Eftestøl; E. Aramendi; BS. Abella; Eirik Skogvoll (2023) Heart rate and QRS duration as biomarkers predict the immediate outcome from pulseless electrical activity. I: Resuscitation. ISSN 0300-9572. Volum 185. DOI: 10.1016/j.resuscitation.2023.109739

Saul Fuster Navarro; Trygve Christian Eftestøl; Kjersti Engan (2022) Nested multiple instance learning with attention mechanisms. I: . IEEE, Proceedings 21st IEEE international conference on machine learning and applications : ICMLA 2022. IEEE (Institute of Electrical and Electronics Engineers). ISBN 9781665462839. s.220-225. DOI: 10.1109/ICMLA55696.2022.00038

Saul Fuster Navarro; Farbod Khoraminia; Umay Kiraz; Neel Kanwal; Vebjørn Kvikstad; Trygve Christian Eftestøl; Tahlita C M Zuiverloon; Emiel Janssen; Kjersti Engan (2022) Invasive cancerous area detection in non-muscle invasive bladder cancer whole slide images. I: . IEEE, 2022 IEEE 14th image video and multidimensional signal processing workshop (IVMSP) : 26-29 June 2022 : Nafplio, Greece. IEEE (Institute of Electrical and Electronics Engineers). ISBN 9781665478229. DOI: 10.1109/IVMSP54334.2022.9816352

Jason Coult; Heemun Kwok; Trygve Christian Eftestøl; Shiv Bhandari; Jennifer Blackwood; Nona Sotoodehnia; Peter J. Kudenchuk; Thomas D. Rea (2022) Continuous assessment of ventricular fibrillation prognostic status during CPR: Implications for resuscitation. I: Resuscitation. ISSN 0300-9572. Volum 179. s.152-162. DOI: 10.1016/j.resuscitation.2022.08.015

Alvaro Fernandez Quilez; Trygve Christian Eftestøl; Svein Reidar Kjosavik; Morten Goodwin; Ketil Oppedal (2022) Multi-Planar T2W MRI for an Improved Prostate Cancer Lesion Classification. I: IEEE International Symposium on Biomedical Imaging. ISSN 1945-7928. DOI: 10.1109/ISBI52829.2022.9761514

Alvaro Fernandez Quilez; Trygve Christian Eftestøl; Svein Reidar Kjosavik; Morten Goodwin; Ketil Oppedal (2022) Contrasting Axial T2W MRI for Prostate Cancer Triage: A Self-Supervised Learning Approach. I: IEEE International Symposium on Biomedical Imaging. ISSN 1945-7928. DOI: 10.1109/ISBI52829.2022.9761573

Anders Norvik; Eirik Unneland; Daniel Bergum; D.G. Buckler; A. Bhardwaj; Trygve Christian Eftestøl; E. Aramendi; Trond Nordseth; B.S. Abella; Jan Terje Kvaløy; Eirik Skogvoll (2022) Pulseless electrical activity in in-hospital cardiac arrest – A crossroad for decisions. I: Resuscitation. ISSN 0300-9572. Volum 176. s.117-124. DOI: 10.1016/j.resuscitation.2022.04.024

Alvaro Fernandez Quilez; Omer Parvez; Trygve Christian Eftestøl; Svein Reidar Kjosavik; Ketil Oppedal (2022) Improving prostate cancer triage with GAN-based synthetically generated prostate ADC MRI. I: Proceedings of SPIE, the International Society for Optical Engineering. ISSN 0277-786X. Volum 12033. DOI: 10.1117/12.2606557

Alvaro Fernandez Quilez; Trygve Christian Eftestøl; Svein Reidar Kjosavik; Ketil Oppedal (2022) Learning to triage by learning to reconstruct: a generative self-supervised approach for prostate cancer based on axial T2w MRI. I: Proceedings of SPIE, the International Society for Optical Engineering. ISSN 0277-786X. Volum 12033. DOI: 10.1117/12.2610623

Alvaro Fernandez Quilez; Habib Ullah; Trygve Christian Eftestøl; Svein Reidar Kjosavik; Ketil Oppedal (2022) One class to rule them all: detection and classification of prostate tumors presence in bi-parametric MRI based on auto-encoders. I: Proceedings of SPIE, the International Society for Optical Engineering. ISSN 0277-786X. Volum 12033. DOI: 10.1117/12.2602884

Vidar Frøysa; Gøran Jansson Berg; Trygve Christian Eftestøl; Leik Woie; Stein Ørn (2021) Texture-based probability mapping for automatic scar assessment in late gadolinium-enhanced cardiovascular magnetic resonance images. I: European Journal of Radiology Open (EJR Open). Online ISSN 2352-0477. Volum 8. s.1-8. DOI: 10.1016/j.ejro.2021.100387

Rune Wetteland; Vebjørn Kvikstad; Trygve Christian Eftestøl; Erlend Tøssebro; Melinda Lillesand; Emiel Janssen; Kjersti Engan (2021) Automatic Diagnostic Tool for Predicting Cancer Grade in Bladder Cancer Patients Using Deep Learning. I: IEEE Access. Online ISSN 2169-3536. Volum 9. s.115813-115825. DOI: 10.1109/ACCESS.2021.3104724

Rune Wetteland; Kjersti Engan; Trygve Christian Eftestøl (2021) Parameterized Extraction of Tiles in Multilevel Gigapixel Images. I: Image and Signal Processing and Analysis. ISSN 1845-5921. DOI: 10.1109/ISPA52656.2021.9552104

Jarle Urdal; Kjersti Engan; Trygve Christian Eftestøl; Solveig H. Haaland; Benjamin Kamala; Paschal Francis Mdoe; Hussein Kidanto; Hege Ersdal (2021) Fetal heart rate development during labour. I: Biomedical engineering online. Online ISSN 1475-925X. Volum 20. s.1-20. DOI: 10.1186/s12938-021-00861-z

Iraia Isasi; Erik Alonso; Unai Irusta; Elisabete Aramendi; Morteza Zabihi; Ali Bahrami Rad; Trygve Christian Eftestøl; Jo Kramer-Johansen; Lars Wik (2021) A Machine Learning-Based Pulse Detection Algorithm for Use During Cardiopulmonary Resuscitation. I: Computing in cardiology. ISSN 2325-8861. Volum 48. DOI: 10.23919/CinC53138.2021.9662778

Øyvind Meinich-Bache; Kjersti Engan; Trygve Christian Eftestøl; Ivar Austvoll (2020) Automatic Video Analysis in Resuscitation. Universitetet i Stavanger. ISBN 9788276449006.

Øyvind Meinich-Bache; Simon Lennart Austnes; Kjersti Engan; Ivar Austvoll; Trygve Christian Eftestøl; Helge Myklebust; Simeon Kusulla; Hussein Kidanto; Hege Langli Ersdal (2020) Activity Recognition from Newborn Resuscitation Videos. I: IEEE Journal of Biomedical and Health Informatics. ISSN 2168-2194. Volum 24. s.3258-3267. DOI: 10.1109/JBHI.2020.2978252

Trygve Christian Eftestøl; Svein Erik Stokka; Jan Terje Kvaløy; Ali Bahrami Rad; Unai Irusta; Elisabete Aramendi; Erik Alonso; Trond Nordseth; Eirik Skogvoll; Lars Wik; Jo Kramer-Johansen (2020) A probabilistic function to model the relationship between quality of chest compressions and the physiological response for patients in cardiac arrest. I: Computing in cardiology. ISSN 2325-8861. Volum 47. DOI: 10.22489/CinC.2020.073

Iraia Isasi; Unai Irusta; Elisabete Aramendi; Trygve Christian Eftestøl; Jo Kramer-Johansen; Lars Wik (2020) Rhythm Analysis during Cardiopulmonary Resuscitation Using Convolutional Neural Networks. I: Entropy. Online ISSN 1099-4300. Volum 22. DOI: 10.3390/e22060595

Magnus Bjørkavoll-Bergseth; Øyunn Kleiven; Bjørn Henrik Auestad; Trygve Christian Eftestøl; Kay Raymond Oskal; Martin Nygård; Øyvind Skadberg; Kristin Moberg Aakre; Tor Harald Melberg; Knut Gjesdal; Stein Ørn (2020) Duration of elevated heart rate Is an important predictor of exercise-induced troponin elevation. I: Journal of the American Heart Association (JAHA). Online ISSN 2047-9980. Volum 9:e14408. s.1-19. DOI: 10.1161/JAHA.119.014408

Haizea Lasa; Unai Irusta; Trygve Christian Eftestøl; Elisabete Aramendi; Ali Bahrami Rad; Jo Kramer-Johansen; Lars Wik (2020) Multimodal biosignal analysis algorithm for the classification of cardiac rhythms during resuscitation. I: Computing in cardiology. ISSN 2325-8861. Volum 47. DOI: 10.22489/CinC.2020.347

Rune Wetteland; Kjersti Engan; Trygve Christian Eftestøl; Vebjørn Kvikstad; Emiel Janssen (2020) A Multiscale Approach for Whole-Slide Image Segmentation of five Tissue Classes in Urothelial Carcinoma Slides. I: Technology in Cancer Research & Treatment (TCRT). ISSN 1533-0346. Volum 19. s.1-15. DOI: 10.1177/1533033820946787

Jarle Urdal; Kjersti Engan; Trygve Christian Eftestøl; Hege Langli Ersdal (2020) Signal Processing for Newborn Survival : from labour to resuscitation. Universitetet i Stavanger. ISBN 9788276449426.

Jarle Urdal; Kjersti Engan; Trygve Christian Eftestøl; Valery Naranjo; Ingun Haug; Anita Yeconia; Hussein Kidanto; Hege Langli Ersdal (2020) Automatic identification of stimulation activities during newborn resuscitation using ECG and accelerometer signals. I: Computer Methods and Programs in Biomedicine. ISSN 0169-2607. Volum 193. s.1-9. DOI: 10.1016/j.cmpb.2020.105445

Eirik Skogvoll; Trond Nordseth; Robert M. Sutton; Trygve Christian Eftestøl; Unai Irusta; Elisabete Aramendi; Dana E. Niles; Vinay M. Nadkarni; Robert A. Berg; Benjamin S. Abella; Jan Terje Kvaløy (2020) Factors Affecting the Course of Resuscitation From Cardiac Arrest With Pulseless Electrical Activity in Children and Adolescents. I: Resuscitation. ISSN 0300-9572. Volum 152. s.116-122. DOI: 10.1016/j.resuscitation.2020.05.013

Kjell Le; Trygve Christian Eftestøl; Kjersti Engan; Øyunn Kleiven; Stein Ørn (2019) Validation of Baseline Wander Removal and Isoelectric Correction in Electrocardiograms Using Clustering. I: European Signal Processing Conference. ISSN 2076-1465. DOI: 10.23919/EUSIPCO.2019.8903153

Trond Nordseth; Dana E. Niles; Trygve Christian Eftestøl; Robert M. Sutton; Unai Irusta; Benjamin S. Abella; Robert A. Berg; Vinay M. Nadkarni; Eirik Skogvoll (2019) Rhythm characteristics and patterns of change during cardiopulmonary resuscitation for in-hospital paediatric cardiac arrest. I: Resuscitation. ISSN 0300-9572. Volum 135. s.45-50. DOI: 10.1016/j.resuscitation.2019.01.006

Iraia Isasi; Unai Irusta; Elisabete Aramendi; Unai Ayala; Erik Alonso; Jo Kramer-Johansen; Trygve Christian Eftestøl (2019) A Multistage Algorithm for ECG Rhythm Analysis During Piston-Driven Mechanical Chest Compressions. I: IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. Volum 66. s.263-272. DOI: 10.1109/TBME.2018.2827304

Øyvind Meinich-Bache; Kjersti Engan; Ivar Austvoll; Trygve Christian Eftestøl; Helge Myklebust; Ladislaus Blacy Yarrot; Hussein Kidanto; Hege Langli Ersdal (2019) Object Detection During Newborn Resuscitation Activities. I: IEEE Journal of Biomedical and Health Informatics. ISSN 2168-2194. DOI: 10.1109/JBHI.2019.2924808

Artzai Picon; Unai Irusta; Aitor Alvarez-Gila; Elisabete Aramendi; Felipe Alonso-Atienza; Carlos Figuera; Unai Ayala; Estibaliz Garrote; Lars Wik; Jo Kramer-Johansen; Trygve Christian Eftestøl (2019) Mixed convolutional and long short-term memory network for the detection of lethal ventricular arrhythmia. I: PLOS ONE. Online ISSN 1932-6203. Volum 14. s.1-22. DOI: 10.1371/journal.pone.0216756

Rune Wetteland; Kjersti Engan; Trygve Christian Eftestøl; Vebjørn Kvikstad; Emiel Janssen (2019) Multiclass tissue classification of whole-slide histological images using convolutional neural networks. I: Maria de Marsico; Gabriella Sanniti di Baja; Ana Fred, Proceedings of the 8th International Conference on Pattern Recognition Applications and Methods. SciTePress. ISBN 9789897583513. s.320-327. DOI: 10.5220/0007253603200327

Iraia Isasi; Unai Irusta; Andoni Elola; Elisabete Aramendi; Trygve Christian Eftestøl; Jo Kramer-Johansen; Lars Wik (2019) A Robust Machine Learning Architecture for a Reliable ECG Rhythm Analysis during CPR. I: IEEE Engineering in Medicine and Biology Society. Conference Proceedings. ISSN 1557-170X. s.1903-1907. DOI: 10.1109/EMBC.2019.8856784

Mahdieh Khanmohammadi; Kjersti Engan; Charlotte Sæland; Trygve Christian Eftestøl; Alf Inge Larsen (2019) Automatic estimation of coronary blood flow velocity step 1 for developing a tool to diagnose patients with micro-vascular angina pectoris. I: Frontiers in Cardiovascular Medicine. Online ISSN 2297-055X. Volum 6:1. s.1-11. DOI: 10.3389/fcvm.2019.00001

Iraia Isasi; Unai Irusta; Ali Bahrami Rad; Elisabete Aramendi; Morteza Zabihi; Trygve Christian Eftestøl; Jo Kramer-Johansen; Lars Wik (2019) Automatic Cardiac Rhythm Classification With Concurrent Manual Chest Compressions. I: IEEE Access. Online ISSN 2169-3536. Volum 7. s.115147-1151159. DOI: 10.1109/ACCESS.2019.2935096

Iraia Isasi; Unai Irusta; Andoni Elola; Elisabete Aramendi; Unai Ayala; Erik Alonso; Jo Kramer-Johansen; Trygve Christian Eftestøl (2019) A Machine Learning Shock Decision Algorithm for use during Piston-driven Chest Compressions. I: IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. Volum 66. s.1752-1760. DOI: 10.1109/TBME.2018.2878910

Jarle Urdal; Kjersti Engan; Trygve Christian Eftestøl; Ladislaus Blacy Yarrot; Kidanto Hussein; Hege Langli Ersdal (2019) Noise and Contraction Detection using Fetal Heart Rate and Accelerometer Signals During Labour. I: Linköping Electronic Conference Proceedings. ISSN 1650-3686. s.121-126.

Kjell Le; Trygve Christian Eftestøl; Kjersti Engan; Øyunn Kleiven; Stein Ørn (2019) Baseline Wander Removal and Isoelectric Correction in Electrocardiograms Using Clustering. I: Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing. ISSN 1520-6149. Volum 2019-May. s.1274-1278. DOI: 10.1109/ICASSP.2019.8683084

Jörn Schulz; Jan Terje Kvaløy; Kjersti Engan; Trygve Christian Eftestøl; Samwel Jatosh; Kidanto Hussein; Hege Langli Ersdal (2019) State transition modeling of complex monitored health data. I: Journal of Applied Statistics. ISSN 0266-4763. DOI: 10.1080/02664763.2019.1698523

Ali Bahrami Rad; Trygve Christian Eftestøl; Unai Irusta; Jan Terje Kvaløy; Lars Wik; Jo Kramer-Johansen; Aggelos K. Katsaggelos; Kjersti Engan (2018) An automatic system for the comprehensive retrospective analysis of cardiac rhythms in resuscitation episodes. I: Resuscitation. ISSN 0300-9572. Volum 122. s.6-12. DOI: 10.1016/j.resuscitation.2017.11.035

Øyvind Meinich-Bache; Kjersti Engan; Trygve Christian Eftestøl; Ivar Austvoll (2018) Kinect Modelling of Chest Compressions - A Feasibility Study for Chest Compression Depth Measurement Using Digital Strategies. I: Proceedings of IEEE International Conference on Image Processing. ISSN 1522-4880. s.913-917. DOI: 10.1109/ICIP.2018.8451387

Kjell Le; Trygve Christian Eftestøl; Kjersti Engan; Stein Ørn; Øyunn Kleiven (2018) High Frequency Noise Detection and Handling in ECG Signals. I: European Signal Processing Conference. ISSN 2076-1465. s.46-50. DOI: 10.23919/EUSIPCO.2018.8553046

Kjell Le; Trygve Christian Eftestøl; Kjersti Engan; Øyunn Kleiven; Stein Ørn (2018) Invariant electrical mean axis in electrocardiogram. I: Computing in cardiology. ISSN 2325-8861. Volum 45. DOI: 10.22489/CinC.2018.151

Dominika Dlugosz; Trygve Christian Eftestøl; Aleksandra Krolak; Tomasz Wiktorski; Stein Ørn (2018) The North Sea bicycle race ECG project: Time-domain analysis. I: Journal of Automation, Mobile Robotics & Intelligent Systems. ISSN 1897-8649. Volum 12. s.23-32. DOI: 10.14313/JAMRIS_1-2018/3

Iraia Isasi; Ali Bahrami Rad; Unai Irusta; Morteza Zabihi; Elisabete Aramendi; Trygve Christian Eftestøl; Jo Kramer-Johansen; Lars Wik (2018) ECG Rhythm Analysis during Manual Chest compressions using an Artefact Removal Filter and Random Forest Classifiers. I: Computing in cardiology. ISSN 2325-8861. Volum 45. DOI: 10.22489/CinC.2018.202

Iraia Isasi; Unai Irusta; Elisabete Aramendi; Unai Ayala; Erik Alonso; Jo Kramer-Johansen; Trygve Christian Eftestøl (2018) An Accurate Shock Advise Algorithm for Use During Piston-Driven Chest Compressions. I: Computing in cardiology. ISSN 2325-8861. Volum 45. DOI: 10.22489/CinC.2018.20

Dominika Długosz; Aleksandra Krolak; Trygve Christian Eftestøl; Stein Ørn; Tomasz Wiktorski; Kay Raymond Oskal; Martin Nygård (2018) ECG Signal Analysis for Troponin Level Assessment and Coronary Artery Disease Detection: the NEEDED Study 2014. I: Annals of Computer Science and Information Systems. Online ISSN 2300-5963. Volum 15. s.1065-1068. DOI: 10.15439/2018F247

Jarle Urdal; Kjersti Engan; Trygve Christian Eftestøl; Hussein Kidanto; Ladislaus Blacy Yarrot; Joar Eilevstjønn; Hege Langli Ersdal (2017) Signal Processing and Classification for Identification of Clinically Important Parameters During Neonatal Resuscitation. I: Vijanth S. Asirvadam, Proc. of the 2017 IEEE International Conference on Signal and Image Processing Applications (IEEE ICSIPA 2017). IEEE (Institute of Electrical and Electronics Engineers). ISBN 9781509055593. s.547-552. DOI: 10.1109/icsipa.2017.8120672

Thi Phuong Huyen Vu; Trygve Christian Eftestøl; Kjersti Engan; Joar Eilevstjønn; Ladislaus Blacy Yarrot; Jørgen Erland Linde; Hege Langli Ersdal (2017) Automatic Detection and Parameterization of Manual Bag-Mask Ventilation on Newborns. I: IEEE Journal of Biomedical and Health Informatics. ISSN 2168-2194. Volum 21. s.527-538. DOI: 10.1109/JBHI.2016.2518238

Dominika Długosz; Trygve Christian Eftestøl; Stein Ørn; Tomasz Wiktorski; Aleksandra Krolak (2017) The North Sea Bicycle Race ECG Project: Time-Domain Analysis. I: Annals of Computer Science and Information Systems. Online ISSN 2300-5963. Volum 11. s.1353-1356. DOI: 10.15439/2017F303

Øyvind Meinich-Bache; Kjersti Engan; Trygve Christian Eftestøl; Ivar Austvoll (2017) Detecting chest compression depth using a smartphone camera and motion segmentation. I: Lecture Notes in Computer Science (LNCS). ISSN 0302-9743. Volum 10270 LNCS. s.53-64. DOI: 10.1007/978-3-319-59129-2_5

Mahdieh Khanmohammadi; Kjersti Engan; Trygve Christian Eftestøl; Charlotte Sæland; Alf Inge Larsen (2017) SEGMENTATION OF CORONARY ARTERIES FROM X-RAY ANGIOGRAPHY SEQUENCES DURING CONTRAST FLUID PROPAGATION BY IMAGE REGISTRATION. I: N. N., Proceedings Global Conferance on Signal and Information Processing GlobalSIP 2017. IEEE Signal Processing Society. ISBN 9781509059904.

Ketil Oppedal; Kjersti Engan; Trygve Christian Eftestøl; Mona K. Beyer; Dag Aarsland (2017) Classifying Alzheimer's disease, Lewy body dementia, and normal controls using 3D texture analysis in magnetic resonance images. I: Biomedical Signal Processing and Control. ISSN 1746-8094. Volum 33. s.19-29. DOI: 10.1016/j.bspc.2016.10.007

Iraia Isasi; Unai Irusta; Elisabete Aramendi; Unai Ayala; Erik Alonso; Jo Kramer-Johansen; Trygve Christian Eftestøl (2017) Removing Piston-driven Mechanical Chest Compression Artefacts from the ECG. I: Computing in cardiology. ISSN 2325-8861. Volum 44. DOI: 10.22489/CinC.2017.009-115

Thi Phuong Huyen Vu; Kjersti Engan; Trygve Christian Eftestøl; Aggelos Katsaggelos; Samwel Jatosh; Simeon Kusulla; Estomih Mduma; Hussein Kidanto; Hege Langli Ersdal (2017) Automatic classification of resuscitation activities on birth-asphyxiated newborns using acceleration and ECG signals. I: Biomedical Signal Processing and Control. ISSN 1746-8094. Volum 36. s.20-26. DOI: 10.1016/j.bspc.2017.03.004

Ali Bahrami Rad; Trygve Christian Eftestøl; Kjersti Engan; Unai Irusta; Jan Terje Kvaløy; Jo Kramer-Johansen; Lars Wik; Aggelos K. Katsaggelos (2017) ECG-Based classification of resuscitation cardiac rhythms for retrospective data analysis. I: IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. Volum 64. s.2411-2418. DOI: 10.1109/TBME.2017.2688380

Thi Phuong Huyen Vu; Trygve Christian Eftestøl; Kjersti Engan (2016) Respiratory-cardio signal processing and analysis of resuscitation data on newborns in low-resource settings. Universitetet i Stavanger. ISBN 9788276446616.

Ketil Oppedal; Trygve Christian Eftestøl; Kjersti Engan; Dag Aarsland; Mona K. Beyer (2016) White Matter Lesions and Pattern Recognition in MRI of Neurodegenerative Dementia. Universitetet i Stavanger. ISBN 9788276446746.

Elisabete Aramendi; U Irusta; Unai Ayala; Henning Naas; Jo Kramer-Johansen; Trygve Christian Eftestøl (2016) Filtering mechanical chest compression artefacts from out-of-hospital cardiac arrest data. I: Resuscitation. ISSN 0300-9572. Volum 98. s.41-47. DOI: 10.1016/j.resuscitation.2015.10.012

Ali Bahrami Rad; Kjersti Engan; Aggelos K. Katsaggelos; Jan Terje Kvaløy; Lars Wik; Jo Kramer-Johansen; Unai Irusta; Trygve Christian Eftestøl (2016) Automatic cardiac rhythm interpretation during resuscitation. I: Resuscitation. ISSN 0300-9572. Volum 102. s.44-50. DOI: 10.1016/j.resuscitation.2016.01.015

Carlos Figuera; Unai Irusta; Eduardo Morgado; Elisabete Aramendi; Unai Ayala; Lars Wik; Jo Kramer-Johansen; Trygve Christian Eftestøl; Felipe Alonso-Atienza (2016) Machine learning techniques for the detection of shockable rhythms in automated external defibrillators. I: PLOS ONE. Online ISSN 1932-6203. Volum 11:e0159654. DOI: 10.1371/journal.pone.0159654

Thi Phuong Huyen Vu; Trygve Christian Eftestøl; Kjersti Engan; Joar Eilevstjønn; Ladislaus Blacy Yarrot; Jørgen Erland Linde; Hege Langli Ersdal (2016) Detection of activities during newborn resuscitation based on short-time energy of acceleration signal. I: Lecture Notes in Computer Science (LNCS). ISSN 0302-9743. Volum 9680. s.262-270. DOI: 10.1007/978-3-319-33618-3_27

Leik Woie; Kjersti Engan; Trygve Eftestøl; Jan Terje Kvaløy; Stein Ørn (2015) The relationship between transmurality of ischemic scars and the heart rate of ventricular tachycardia. I: Scandinavian Cardiovascular Journal. ISSN 1401-7431. Volum 49. s.241-248. DOI: 10.3109/14017431.2015.1066844

Trygve Christian Eftestøl; Erlend Gyllensten Singsaas; Kjersti Engan; Leik Woie; Stein Ørn (2015) Automatic Detection of Microvascular Obstruction in Patients with Myocardial Infarction. I: Computing in cardiology. ISSN 2325-8861. Volum 42. s.757-760. DOI: 10.1109/cic.2015.7411021

Kenneth Gundersen; Jan Terje Kvaløy; Trygve Eftestøl; Jo Kramer-Johansen (2015) Modelling ventricular fibrillation coarseness during cardiopulmonary resuscitation by mixed effects stochastic differential equations. I: Statistics in Medicine. ISSN 0277-6715. Volum 34. s.3159-3169. DOI: 10.1002/sim.6539

Kjersti Engan; Valery Naranjo; Trygve Christian Eftestøl; Stein Ørn; Leik Woie (2015) Segmentation of LG Enhanced Cardiac MRI. I: Jan Schier; Ana Fred; Dirk Elias; Màrio Forjaz Secca; Hugo Gamboa, Proceedings of the International Conference on Bioimaging (BIOIMAGING-2015). SciTePress. ISBN 9789897580727. s.47-55. DOI: 10.5220/0005169200470055

Huyen Phuong Vu; Trygve Christian Eftestøl; Kjersti Engan; Joar Eilevstjønn; Jørgen Erland Linde; Hege Langli Ersdal (2015) Exploratory Analysis of Ventilation Signals from Resuscitation Data of Newborns. I: Harald Loose; Ana Fred; Hugo Gamboa; Dirk Elias, Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2015). SciTePress. ISBN 9789897580697. s.12-20. DOI: 10.5220/0005176800120020

Thi Phuong Huyen Vu; Trygve Christian Eftestøl; Kjersti Engan; Joar Eilevstjønn; Ladislaus Blacy Yarrot; Jørgen Erland Linde; Hege Langli Ersdal (2015) Exploring the Relationship Between Characteristics of Ventilation Performance and Response of Newborns During Resuscitation. I: Communications in Computer and Information Science (CCIS). ISSN 1865-0929. s.275-290. DOI: 10.1007/978-3-319-27707-3_17

U. Ayala; U Irusta; J. Ruiz; S. Ruiz de Gauna; D Gonzalez-Otero; E Alonso; Jo Kramer-Johansen; Henning Naas; Trygve Eftestøl (2015) Fully automatic rhythm analysis during chest compression pauses. I: Resuscitation. ISSN 0300-9572. Volum 89. s.25-30. DOI: 10.1016/j.resuscitation.2014.11.022

Digna M. Gonzalez-Otero; Sofia Ruiz de Gauna; Jesus Ruiz; Mohamud R. Daya; Lars Wik; James K. Russell; Jo Kramer-Johansen; Trygve Eftestøl; Erik Alonso; Unai Ayala (2015) Chest compression rate feedback based on transthoracic impedance. I: Resuscitation. ISSN 0300-9572. Volum 93. s.82-88. DOI: 10.1016/j.resuscitation.2015.05.027

Lasya Priya Kotu; Kjersti Engan; Reza Borhani; Aggelos K. Katsaggelos; Stein Ørn; Leik Woie; Trygve Eftestøl (2015) Cardiac magnetic resonance image-based classification of the risk of arrhythmias in post-myocardial infarction patients. I: Artificial Intelligence in Medicine. ISSN 0933-3657. Volum 64. s.205-215. DOI: 10.1016/j.artmed.2015.06.001

Ketil Oppedal; Trygve Eftestøl; Kjersti Engan; Mona K. Beyer; Dag Aarsland (2015) Classifying dementia using local binary patterns from different regions in magnetic resonance images. I: International Journal of Biomedical Imaging. ISSN 1687-4188. Volum 2015. DOI: 10.1155/2015/572567

Leik Woie; Kjersti Engan; Trygve Eftestøl; Alf Inge Larsen; Stein Ørn (2015) The Localization and Characterization of Ischemic Scars in relation to the Infarct Related Coronary Artery Assessed by Cardiac Magnetic Resonance and a Novel Automatic Postprocessing Method. I: Cardiology Research and Practice. ISSN 2090-8016. Volum 2015. DOI: 10.1155/2015/120874

Huyen Phuong Vu; Trygve Eftestøl; Kjersti Engan; Joar Eilevstjønn; Jørgen Erland Linde; Hege Ersdal (2015) Exploratory Analysis of Ventilation Signals from Resuscitation Data of Newborns. I: Communications in Computer and Information Science (CCIS). ISSN 1865-0929. Volum 574. s.275-290. DOI: 10.1007/978-3-319-27707-3_17

Kjersti Engan; Valery Naranjo; Trygve Eftestøl; Leik Woie; Arthur Schuchter; Stein Ørn (2014) Automatic Detection of Heart Center in Late Gadolinium Enhanced MRI. I: International Federation for Medical and Biological Engineering Proceedings. ISSN 1680-0737. Volum 41. s.165-168. DOI: 10.1007/978-3-319-00846-2_41

Leik Woie; Frode Måløy; Trygve Eftestøl; Kjersti Engan; Thor Edvardsen; Jan Terje Kvaløy; Stein Ørn (2014) Comparing a novel automatic 3D method for LGE-CMR quantification of scar size with established methods. I: The International Journal of Cardiovascular Imaging. ISSN 1569-5794. Volum 30. s.339-347. DOI: 10.1007/s10554-013-0329-0

Kjersti Engan; Leik Woie; Trygve Eftestøl (2014) Defining Angular and Radial Positions and Parameters for Myocardial Pixels in Cardiac MR Images. I: Computing in cardiology. ISSN 2325-8861. Volum 41. s.941-944.

Unai Ayala; Unai Irusta; Jesús Ruiz; Felipe Alonso-Atienza; Erik Alonso; Digna González-Otero; Jo Kramer-Johansen; Henning Naas; Trygve Eftestøl (2014) Filtering chest compression artifacts improves the performance of VF-detection parameters. I: Computing in cardiology. ISSN 2325-8861. Volum 41. s.1109-1112.

Unai Ayala; Trygve Eftestøl; E Alonso; U Irusta; E. Aramendi; Shahnaz Wali; Jo Kramer-Johansen (2014) Automatic detection of chest compressions for the assessment of CPR-quality parameters. I: Resuscitation. ISSN 0300-9572. Volum 85. s.957-963. DOI: 10.1016/j.resuscitation.2014.04.007

Sofia Ruiz de Gauna; Unai Irusta; Jesus Ruiz; Unai Ayala; Elisabete Aramendi; Trygve Eftestøl (2014) Rhythm analysis during cardiopulmonary resuscitation: past, present, and future. I: BioMed Research International. ISSN 2314-6133. Volum 2014:386010. DOI: 10.1155/2014/386010

Erik Alonso; Trygve Eftestøl; Elisabete Aramendi; Jo Kramer-Johansen; Eirik Skogvoll; Trond Nordseth (2014) Beyond ventricular fibrillation analysis: Comprehensive waveform analysis for all cardiac rhythms occurring during resuscitation. I: Resuscitation. ISSN 0300-9572. Volum 85. s.1541-1548. DOI: 10.1016/j.resuscitation.2014.08.022

Trygve Eftestøl; Lawrence D. Sherman (2014) Towards the automated analysis and database development of defibrillator data from cardiac arrest. I: BioMed Research International. ISSN 2314-6133. Volum 2014. DOI: 10.1155/2014/276965

Unai Ayala; Unai Irusta; Jesús Ruiz; Trygve Eftestøl; Jo Kramer-Johansen; Felipe Alonso-Atienza; Erik Alonso; Digna González-Otero (2014) A reliable method for rhythm analysis during cardiopulmonary resuscitation. I: BioMed Research International. ISSN 2314-6133. Volum 2014>872470. DOI: 10.1155/2014/872470

Trond Nordseth; Dana P. Edelson; Daniel Bergum; Theresa Mariero Olasveengen; Trygve Eftestøl; Rune Wiseth; Jan Terje Kvaløy; Benjamin S. Abella; Eirik Skogvoll (2014) Optimal loop duration during the provision of in-hospital advanced life support (ALS) to patients with an initial non-shockable rhythm. I: Resuscitation. ISSN 0300-9572. Volum 85. s.75-81. DOI: 10.1016/j.resuscitation.2013.08.261

Ali Bahrami Rad; Trygve Eftestøl; Jan Terje Kvaløy; Unai Ayala; Jo Kramer-Johansen; Kjersti Engan (2014) Nearest-manifold classification approach for cardiac arrest rhythm interpretation during resuscitation. I: Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing. ISSN 1520-6149. s.3621-3625. DOI: 10.1109/ICASSP.2014.6854276

Trygve Eftestøl; Frode Måløy; Kjersti Engan; Lasya Priya Kotu; Leik Woie; Stein Ørn (2014) A Texture-based Probability Mapping for Localisation of Clinically Important Cardiac Segments in the Myocardium in Cardiac Magnetic Resonance Images from Myocardial Infarction Patients. I: Proceedings of IEEE International Conference on Image Processing. ISSN 1522-4880. s.2227-2231. DOI: 10.1109/ICIP.2014.7025451

Vu Huyen; Trygve Eftestøl; Kjersti Engan; Joar Eilevstjønn; Jørgen Erland Linde; Hege Ersdal (2014) Exploratory Analysis of Heart Rate Changes in Newborns to Investigate the Effectiveness of Bag-Mask Ventilation. I: Computing in cardiology. ISSN 2325-8861. Volum 41. s.457-460.

Lasya Priya Kotu; Kjersti Engan; Karl Skretting; Frode Måløy; Stein Ørn; Leik Woie; Trygve Eftestøl (2013) Probability mapping of scarred myocardium using texture and intensity features in CMR images. I: Biomedical engineering online. Online ISSN 1475-925X. Volum 12. DOI: 10.1186/1475-925X-12-91

Frode Måløy; Leik Woie; Trygve Eftestøl; Kjersti Engan; Stein Ørn (2013) Measuring the Degree of Fibrosity of Myocardial Scars from Late Gadolinium- Enhanced Cardiovascular Magnetic Resonance Images. I: Computers in cardiology. ISSN 0276-6574. Volum 40. s.647-650.

Kjersti Engan; Valery Naranjo; Trygve Eftestøl; Stein Ørn; Leik Woie (2013) Automatic Segmentation of the Epicardium in Late Gadolinium Enhanced Cardiac MR Images. I: Computers in cardiology. ISSN 0276-6574. Volum 40. s.631-634.

Ali Bahrami Rad; Trygve Eftestøl; Jan Terje Kvaløy; Unai Ayala; Jo Kramer-Johansen; Kjersti Engan (2013) Probabilistic Classification Approaches for Cardiac Arrest Rhythm Interpretation during Resuscitation. I: Computers in cardiology. ISSN 0276-6574. Volum 40. s.125-128. DOI: 10.1109/icassp.2014.6854276

Trond Nordseth; Daniel Bergum; Dana P. Edelson; Theresa Mariero Olasveengen; Trygve Eftestøl; Rune Wiseth; Benjamin S. Abella; Eirik Skogvoll (2013) Clinical state transitions during advanced life support (ALS) in in-hospital cardiac arrest. I: Resuscitation. ISSN 0300-9572. Volum 84. s.1238-1244. DOI: 10.1016/j.resuscitation.2013.04.010

Jesus Ruiz; Unai Ayala; Sofia Ruiz de Gauna; Unai Irusta; Digna Gonzalez-Otero; Elisabete Aramendi; Erik Alonso; Trygve Eftestøl (2013) Direct evaluation of the effect of filtering the chest compression artifacts on the uninterrupted cardiopulmonary resuscitation time. I: American Journal of Emergency Medicine. ISSN 0735-6757. Volum 31. s.910-915. DOI: 10.1016/j.ajem.2013.02.044

J Ruiz; E Alonso; E. Aramendi; Jo Kramer-Johansen; Trygve Eftestøl; U Ayala; D Gonzalez-Otero (2013) Reliable extraction of the circulation component in the thoracic impedance measured by defibrillation pads. I: Resuscitation. ISSN 0300-9572. Volum 84. s.1345-1352. DOI: 10.1016/j.resuscitation.2013.05.020

Unai Ayala; Unai Irusta; Jesus Ruiz; Digna Gonzales-Otero; Erik Alonso; Jo Kramer-Johansen; Trygve Eftestøl (2013) A New Algorithm to Diagnose during Chest Compressions: Effect on Cardiopulmonary Resuscitation Delivery. I: Computers in cardiology. ISSN 0276-6574. Volum 40. s.129-132.

Digna Gonzales-Otero; Erik Alonso; Jesus Ruiz; Elisabete Aramendi; Sofia Ruiz de Gauna; Unai Ayala; Jo Kramer-Johansen; Trygve Eftestøl (2013) A simple impedance-based method for ventilation detection during cardiopulmonary resuscitation. I: Computers in cardiology. ISSN 0276-6574. s.807-210.

Lasya Priya Kotu; Kjersti Engan; Karl Skretting; Stein Ørn; Leik Woie; Trygve Eftestøl (2013) Segmentation of Scarred Myocardium in Cardiac Magnetic Resonance Images. I: ISRN Biomedical Imaging. Online ISSN 2314-5412. DOI: 10.1155/2013/504594

J Ruiz; U Ayala; SR de Gauna; U Irusta; D Gonzalez-Otero; E Alonso; Jo Kramer-Johansen; Trygve Eftestøl (2013) Feasibility of automated rhythm assessment in chest compression pauses during cardiopulmonary resuscitation. I: Resuscitation. ISSN 0300-9572. Volum 84. s.1223-1228. DOI: 10.1016/j.resuscitation.2013.01.034

Elisabeti Aramendi; U Ayala; U Irusta; E Alonso; Trygve Eftestøl; Jo Kramer-Johansen (2012) Suppression of the cardiopulmonary resuscitation artefacts using the instantaneous chest compression rate extracted from the thoracic impedance. I: Resuscitation. ISSN 0300-9572. Volum 83. s.692-698. DOI: 10.1016/j.resuscitation.2011.11.029

Lasya Priya Kotu; Kjersti Engan; Trygve Eftestøl; Leik Woie; Stein Ørn; Aggelos K. Katsaggelos (2012) LOCAL BINARY PATTERNS USED ON CARDIAC MRI TO CLASSIFY HIGH AND LOW RISK PATIENT GROUPS. I: European Signal Processing Conference. ISSN 2076-1465. Volum 20. s.2586-2590.

Zhijun Yang; Zhengrong Yang; Trygve Eftestøl; Petter Andreas Steen; Weiping Lu; Robert G Harrison (2012) A mixture model classifier and its application on the biomedical time series. I: Applied Artificial Intelligence. ISSN 0883-9514. Volum 26. s.588-597. DOI: 10.1080/08839514.2012.687665

Ketil Oppedal; Kjersti Engan; Dag Aarsland; Mona Kristiansen Beyer; Ole-Bjørn Tysnes; Trygve Eftestøl (2012) Using local binary pattern to classify dementia in MRI. I: . 9th IEEE, 2012 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro. IEEE Signal Processing Society. ISBN 9781457718588. s.594-597.

Trygve Eftestøl; Jan Terje Kvaløy; Dennis W.T. Nilsen; Leik Woie (2012) Analysis of Intracardiac Electrogram Changes. I: Computers in cardiology. ISSN 0276-6574. Volum 39. s.669-672.

Trygve Eftestøl; Leik Woie; Kjersti Engan; Jan Terje Kvaløy; Dennis W.T. Nilsen; Stein Ørn (2012) Texture Analysis to Assess Risk of Serious Arrhythmias after Myocardial Infarction. I: Computers in cardiology. ISSN 0276-6574. s.365-368.

Unai Alaya; Joar Eilevstjønn; Unai Irusta; Trygve Eftestøl; E Alonso; D Gonzalez (2011) Are dual-channel methods as accurate as multi-channel methods to suppress the CPR artifact?. I: Computers in cardiology. ISSN 0276-6574. Volum 38. s.509-512.

Leik Woie; Trygve Eftestøl; Kjersti Engan; Jan Terje Kvaløy; Dennis W.T. Nilsen; Stein Ørn (2011) The heart rate of ventricular tachycardia following an old myocardial infarction is inversely related to the size of scarring. I: Europace. ISSN 1099-5129. Volum 13. s.864-868. DOI: 10.1093/europace/euq466

Lasya Priya Kotu; Kjersti Engan; Trygve Eftestøl; Stein Ørn; Leik Woie (2011) TEXTURE CLASSIFICATION OF SCARRED AND NON-SCARRED MYOCARDIUM IN CARDIAC MRI USING LEARNED DICTIONARIES. I: Proceedings of IEEE International Conference on Image Processing. ISSN 1522-4880. Volum 18. s.65-68. DOI: 10.1109/ICIP.2011.6116638

Lasya Priya Kotu; Kjersti Engan; Trygve Eftestøl; Stein Ørn; Leik Woie (2011) Segmentation of Scarred and Non-Scarred Myocardium in LG Enhanced CMR Images using Intensity-Based Textural Analysis. I: IEEE Engineering in Medicine and Biology Society. Conference Proceedings. ISSN 1557-170X. s.5698-5701. DOI: 10.1109/IEMBS.2011.6091379

Ian Jacobs; Kjetil Sunde; Charles D. Deakin; Mary Fran Hazinski; Richard E. Kerber; Rudolph W. Koster; Laurie J. Morrison; Jerry P. Nolan; Michael R. Sayre; Mark Angelos; Michael Baubin; M. Fernanda bellolio; Paul Berlin; R Bradley; Saul Drajer; Trygve Eftestøl; Chokoh Genka; Erik P. Hess; Toshihiko Mayumi; Saman Nazarian; Mark Peele; Claudia Ranniger; Giuseppe Ristagno; Comilla Sasson; Shijie Sun (2010) Part 6: defibrillation: 2010 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. I: Circulation. ISSN 0009-7322. Volum 122. s.325-337. DOI: 10.1161/CIRCULATIONAHA.110.971010

Kjersti Engan; Trygve Eftestøl; Stein Ørn; Jan Terje Kvaløy; Leik Woie (2010) Exploratory Data Analysis of Image Texture and Statistical Features on Myocardium and Infarction Areas in Cardiac Magnetic Resonance Images. I: IEEE Engineering in Medicine and Biology Society. Conference Proceedings. ISSN 1557-170X. s.5728-5731. DOI: 10.1109/IEMBS.2010.5627866

Jesus Ruiz; Unai Irusta; Sofia Ruiz de Gauna; Trygve Eftestøl (2010) Cardiopulmonary resuscitation artefact suppression using a Kalman filter and the frequency of chest compressions as the reference signal. I: Resuscitation. ISSN 0300-9572. Volum 81. s.1087-1094. DOI: 10.1016/j.resuscitation.2010.02.031

Kenneth Gundersen; Jon Nysæther; Jan Terje Kvaløy; Jo Kramer-Johansen; Trygve Eftestøl (2009) Chest compression quality variables influencing the temporal development of ROSC-predictors calculated from the ECG during VF. I: Resuscitation. ISSN 0300-9572. Volum 80. s.177-182.

Trygve Eftestøl; Kari Anne Haaland Thorsen; Erlend Tøssebro; Chunming Rong; Petter Andreas Steen (2009) Representing resuscitation data - Considerations on efficient analysis of quality of cardiopulmonary resuscitation. I: Resuscitation. ISSN 0300-9572. Volum doi:10.1016/j.resusc.

Øystein Johansen; Tom Ryen; Trygve Eftestøl; Thomas Kjosmoen; Peter Ruoff (2009) Splice Site Prediction Using Artificial Neural Networks. I: Lecture Notes in Computer Science (LNCS). ISSN 0302-9743. Volum 5488. s.102-113.

Kenneth Gundersen; Jon Nysæther; Jan Terje Kvaløy; Jo Kramer-Johansen; Trygve Eftestøl (2009) Chest compression quality variables influencing the temporal development of ROSC-predictors calculated from the ECG during VF. I: Resuscitation. ISSN 0300-9572. Volum 80. s.177-182. DOI: 10.1016/j.resuscitation.2008.09.011

Trygve Eftestøl (2009) Controlling true positive rate in ROC analysis. I: Computers in Cardiology 2009,. IEEE (Institute of Electrical and Electronics Engineers). s.353-356.

Jan Terje Kvaløy; Eirik Skogvoll; Trygve Eftestøl; Kenneth Gundersen; Jo Kramer-Johansen; Theresa Mariero Olasveengen; Petter Andreas Steen (2009) Which factors influence spontaneous state transitions during resuscitation?. I: Resuscitation. ISSN 0300-9572. Volum 80. s.863-869.

Unai Irusta; Jesus Ruiz; S.R. de Gauna; Trygve Eftestøl; Jo Kramer-Johansen (2009) A Least Mean-Square Filter for the Estimation of the Cardiopulmonary Resuscitation Artifact Based on the Frequency of the Compressions. I: IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. Volum 56. s.1052-1062. DOI: 10.1109/TBME.2008.2010329

Theresa Mariero Olasveengen; Trygve Eftestøl; Kenneth Gundersen; Lars Wik; Kjetil Sunde (2009) Acute ischemic heart disease alters ventricular fibrillation waveform characteristics in out-of hospital cardiac arrest. I: Resuscitation. ISSN 0300-9572. Volum 80. s.412-417.

Theresa Mariero Olasveengen; Trygve Eftestøl; Kenneth Gundersen; Lars Wik; Kjetil Sunde (2009) Acute ischemic heart disease alters ventricular fibrillation waveform characteristics in out-of hospital cardiac arrest. I: Resuscitation. ISSN 0300-9572. Volum 80. s.412-417. DOI: 10.1016/j.resuscitation.2009.01.012

Kari Anne Haaland Thorsen; Trygve Eftestøl; Chunming Rong; Petter Andreas Steen (2009) An Integrated Information Sharing Structure for Resuscitation Data. I: al et, Proceedings of the 23rd International Conference on Advanced Information Networking and Applications - Workshops. IEEE Computer Society. ISBN 9780769536392. s.8-12.

Kari Anne Haaland Thorsen; Trygve Eftestøl; Erlend Tøssebro; Chunming Rong; Petter Andreas Steen (2009) Using Ontologies to Integrate and Share Resuscitation Data from Diverse Medical Devices. I: Resuscitation. ISSN 0300-9572. Volum 80. s.511-516.

Eirik Skogvoll; Trygve Eftestøl; Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Theresa Mariero Olasveengen; Petter Andreas Steen (2008) Dynamics and state transitions during resuscitation in out-of-hospital cardiac arrest. I: Resuscitation. ISSN 0300-9572. Volum 78. s.30-37.

Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Theresa Mariero Olasveengen; Joar Eilevstjønn; Trygve Eftestøl (2008) Using within-patient correlation to improve the accuracy of shock outcome prediction for cardiac arrest. I: Resuscitation. ISSN 0300-9572. Volum 78. s.46-51.

Andreas Neurauter; Trygve Eftestøl; Jo Kramer-Johansen; Ben Abella; Volker Wenzel; Karl Lindner; Joar Eilevstjønn; Helge Myklebust; Petter Andreas Steen; Fritz Sterz; Beate Jahn; Hans Ulrich Strohmenger (2008) Improving countershock success prediction during cardiopulmonary resuscitation using ventricular fibrillation features from higher ECG frequency bands. I: Resuscitation. ISSN 0300-9572. Volum 79. s.453-459.

Kenneth Gundersen; Terje Jan Kvaløy; Jo Kramer-Johansen; Trygve Eftestøl (2008) Identifying approaches to improve the accuracy of shock outcome prediction for out-of-hospital cardiac arrest. I: Resuscitation. ISSN 0300-9572. Volum 76. s.279-284. DOI: 10.1016/j.resuscitation.2007.07.019

Martin Risdal; Sven Ole Aase; Jo Kramer-Johansen; Trygve Eftestøl (2008) Automatic identification of return of spontaneous circulation during cardiopulmonary resuscitation. I: IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. Volum 55. s.60-68.

Sofia Ruiz de Gauna; Jesus Ruiz; Unai Irusta; Elisabete Aramendi; Trygve Eftestøl; Jo Kramer-Johansen (2008) A method to remove CPR artefacts from human ECG using only the recorded ECG. I: Resuscitation. ISSN 0300-9572. Volum 76. s.271-278.

Andreas Neurauter; Jo Kramer-Johansen; Joar Eilevstjonn; Helge Myklebust; Volker Wenzel; Karl Lindner; Trygve Eftestøl; Petter Andreas Steen; Hans Ulrich Strohmenger (2007) Estimation of the duration of ventricular fibrillation using ECG single feature analysis. I: Resuscitation. ISSN 0300-9572. Volum 73.

Martin Risdal; Sven Ole Aase; Mette Stavland; Trygve Eftestøl (2007) Impedance-based ventilation detection during cardiopulmonary resuscitation. I: IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. Volum 54. s.2237-2245.

Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Trygve Eftestøl (2007) Identifying approaches to improve the accuracy of shock outcome prediction for out-of-hospital cardiac arrest. I: Resuscitation. ISSN 0300-9572.

Trygve Eftestøl; Hans Ulrich Strohmenger; Colin Robertson (2007) Analysis and predictive value of the ventricular fibrillation waveform. I: Karl B. Kern; Douglas A. Chamberlain; Volker Wenzel; Norman A. Paradis; Henry R. Halperin, Cardiac arrest: The science and practice of resuscitation medicine .- Second edition. Cambridge University Press. s.417-425.

Andreas Neurauter; Trygve Eftestøl; Jo Kramer-Johansen; Ben Abella; Kjetil Sunde; Volker Wenzel; Karl Lindner; Joar Eilevstjonn; Helge Myklebust; Petter Andreas Steen; Hans Ulrich Strohmenger (2007) Prediction of countershock success using single features from multiple ventricular fibrillation frequency bands and feature combinations using neural networks. I: Resuscitation. ISSN 0300-9572. Volum 73.

Heidrun Losert; Martin Risdal; Fritz Sterz; Jon Nysæther; Klemens Köhler; Trygve Eftestøl; Cosima Wandaller; Helge Myklebust; Thomas Uray; Sven Ole Aase; anton n. laggner (2007) Thoracic-impedance changes measured via defibrillator pads can monitor signs of circulation. I: Resuscitation. ISSN 0300-9572. Volum 73.

Heidrun Losert; Martin Risdal; Fritz Sterz; Jon Nysæther; Klemens Köhler; Trygve Eftestøl; Cosima Wandaller; Helge Myklebust; Thomas Uray; Gottfried Sodeck; anton n. laggner (2006) Thoracic impedance changes measured via defibrillator pads can monitor ventilation in critical ill patients and during cardiopulmonary resuscitation. I: Critical Care Medicine. ISSN 0090-3493. Volum 34. s.7-7.

Inge Dragsund; Kenneth Gundersen; Martin Risdal; Jo Kramer-Johansen; Ben Abella; dana edelson; Fritz Sterz; Trygve Eftestøl (2006) Analysing the dynamics of pulseless electrical activity during cardiopulmonary resuscitation. I: computers in cardiology 2006, volume 33. IEEE (Institute of Electrical and Electronics Engineers). s.4-4.

Martin Risdal; Heidrun Losert; Fritz Sterz; Sven Ole Aase; Trygve Eftestøl (2006) Using thoracic impedance for identification of return of spontaneous circulation during resuscitation. I: . ., Proceedings of the 7th nordic signal processing symposium. IEEE (Institute of Electrical and Electronics Engineers). s.4-4.

Trygve Eftestøl; Eirik Skogvoll; Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Petter Andreas Steen (2006) Information structuring and symbolic representation for analysis of resuscitation data. I: . ., Proceedings of the 7th nordic signal processing symposium. IEEE (Institute of Electrical and Electronics Engineers). s.4-4.

Trygve Eftestøl; Tom Ryen; Sven Ole Aase; Cassian Strässle; Marcus Boos; Guido M. Schuster; Peter Ruoff (2006) Eukaryotic gene prediction by spectral analysis and pattern recognition techniques. I: . ., Proceedings of the 7th nordic signal processing symposium. IEEE (Institute of Electrical and Electronics Engineers). s.4-4.

Martin Risdal; Heidrun Losert; Jon Nysæther; Sven Ole Aase; Fritz Sterz; Trygve Eftestøl (2005) Ventilation classification for cardiopulmonary resuscitation quality monitoring using thoracic impedance. I: International Federation for Medical and Biological Engineering Proceedings. ISSN 1680-0737. Volum 11.

Martin Risdal; Sven Ole Aase; Trygve Eftestøl (2005) Examining the Potential of Using Thorax Impedance Measured by Automated External Defibrillators for Quantification of Circulation. I: Conference Proceedings of Computers in Cardiology Conference, 2005. IEEE (Institute of Electrical and Electronics Engineers).

Martin Risdal; Heidrun Losert; Jon Nysæther; Sven Ole Aase; Fritz Sterz; Trygve Eftestøl (2005) Non-invasive ventilation monitoring during cardiopulmonary resuscitation by means of thoracic impedance. I: International Federation for Medical and Biological Engineering Proceedings. ISSN 1680-0737. Volum 11.

Martin Risdal; Mette Stavland; Sven Ole Aase; Trygve Eftestøl (2005) Impedance-based ventilation detection during cardiopulmonary resuscitation using a neural network. I: International Federation for Medical and Biological Engineering Proceedings. ISSN 1680-0737. Volum 11.

Trygve Eftestøl; Heidrun Losert; Jo Kramer-Johansen; Lars Wik; Fritz Sterz; Petter Andreas Steen (2005) Independent evaluation of a defibrillation outcome predictor for out-of-hospital cardiac arrested patients. I: Resuscitation. ISSN 0300-9572. Volum 67. s.55-60.

Joar Eilevstjønn; Jo Kramer-Johansen; Trygve Eftestøl; Mette Stavland; Helge Myklebust; Petter Andreas Steen (2005) Reducing no flow times during automated external defibrillation. I: Resuscitation. ISSN 0300-9572. Volum 67. s.93-99.

Martin Risdal; Sven Ole Aase; Trygve Eftestøl (2005) Arbitrary feature space dimensionality reduction with focus on loss of discrimination for two-class problems. I: NORSIG 2005. Tapir Akademisk Forlag.

Zhengrong Yang; Zhijun Yang; Weiping Lu; Robert G. Harrison; Trygve Eftestøl; Petter Andreas Steen (2005) A probabilistic neural network as the predictive classifier of out-of-hospital defibrillation outcomes. I: Resuscitation. ISSN 0300-9572. Volum 64.

Trygve Eftestøl; Lars Wik; Kjetil Sunde; Petter Andreas Steen (2004) Effects of cardiopulmonary resuscitation on predictors of ventricular fibrillation defibrillation success during out-of-hospital cardiac arrest. I: Circulation. ISSN 0009-7322. Volum 110. s.10-15.

Jamie Watson; Nopadol Uchaipichat; Paul S Addison; Gareth R Clegg; Colin Robertson; Trygve Eftestøl; Petter Andreas Steen (2004) Improved prediction of defibrillation success for out-of-hospital VF cardiac arrest using wavelet transform methods. I: Resuscitation. ISSN 0300-9572. Volum 63. s.269-275.

Trygve Eftestøl; Lars Wik; Kjetil Sunde; Petter Andreas Steen (2004) Effects of cardiopulmonary resuscitation on predictors ofventricular fibrillation defibrillation success during out-of-hospital cardiac arrest. I: Circulation. ISSN 0009-7322. Volum 110. s.10-15.

Joar Eilevstjønn; Trygve Eftestøl; Sven Ole Aase; Helge Myklebust; John Håkon Husøy; Petter Andreas Steen (2004) Feasibility of shock advice analysis during CPR through removal of CPR artefacts from the human ECG. I: Resuscitation. ISSN 0300-9572. Volum 61. s.131-141.

Trygve Eftestøl; Joar Eilevstjønn; Petter Andreas Steen (2003) Advanced life support therapy on out-of-hospital cardiac arrest patients: an engineering perspective. I: ?. s.89-99.

Trygve Eftestøl; Kjetil Sunde; Petter Andreas Steen (2002) Effects of interrupting precordial compressions on the calculated probability of defibrillation succes during out-of-hospital cardiac arrest. I: Circulation. ISSN 0009-7322. Volum 105. s.2270-2273.

John Håkon Husøy; Joar Eilevstjønn; Trygve Eftestøl; Sven Ole Aase; Helge Myklebust; Petter Andreas Steen (2002) Removal of cardiopulmonary resuscitation artifacts from human ecg using an efficient matching pursuit-like algorithm. I: IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. Volum 49. s.1287-1298.

Audun Langhelle; Trygve Eftestøl; Helge Myklebust; Morten Eriksen; Bjørn Terje Holten; Petter Andreas Steen (2001) Reducing CPR artefacts in ventricular fibrillation in vitro. I: Resuscitation. ISSN 0300-9572. Volum 48. s.279-291.

Michael Small; Dejin Yu; Robert G. Harrison; Richard Clayton; Trygve Eftestøl; Kjetil Sunde; Petter Andreas Steen (2001) Temporal evolution of nonlinear dynamics in ventricular arrhythmia. I: ?. Volum 11. s.2531-2548.

Hans Ulrich Strohmenger; Trygve Eftestøl; Kjetil Sunde; Volker Wenzel; Metchild Mair; Hanno Ulmer; Karl Lindner; Petter Andreas Steen (2001) The Predictive Value of Ventricular Fibrillation Electrocardiogram Signal Frequency and Amplitude Variables in Patients with Out-Of-Hospital Cardiac Arrest. I: ?. Volum 93.

Trygve Eftestøl; Kjetil Sunde; Sven Ole Aase; John Håkon Husøy; Petter Andreas Steen (2001) Probability of successful defibrillation' as a monitor during CPR in out-of-hospital cardiac arrested patients. I: Resuscitation. ISSN 0300-9572. Volum 48. s.245-254.

Sven Ole Aase; Trygve Eftestøl; John Håkon Husøy; Kjetil Sunde; Petter Andreas Steen (2000) CPR artifact removal from human ECG using optimal multichannel filtering. I: IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. Volum 47. s.1440-1449.

Trygve Eftestøl; Kjetil Sunde; Sven Ole Aase; John Håkon Husøy; Petter Andreas Steen (2000) Predicting outcome of defibrillation by spectral characterization and nonparametric classification of ventricular fibrillation in patients with out-of-hospital cardiac arrest. I: Circulation. ISSN 0009-7322. Volum 102. s.1523-1529.

Trygve Christian Eftestøl (2000) Signal analysis of out-of-hospital cardiac arrest electrocardiograms for decision support during cardiopulmonary resuscitation. Norges teknisk-naturvitenskapelige universitet. ISBN 9788279840916.

Kjetil Sunde; Trygve Eftestøl; Christian Askenberg; Petter Andreas Steen (1999) Quality assessment of defibrillation and advanced life support using data from the medical control module of the defibrillator. I: Resuscitation. ISSN 0300-9572. Volum 41. s.237-247.

Bøker og kapitler

Kay Raymond Oskal; Trygve Christian Eftestøl (2016) Myocardial damage during mountain bike race - an analysis of data from Nordsjørittet 2014 (NEEDED study). Universitetet i Stavanger.

Formidling

Mahdieh Khanmohammadi; Trygve Christian Eftestøl; Aziz Zafar; Kolbjørn Kallesten Brønnick (2024) Automatic Classification of Neurodegenerative Disorders Using EEG Data. International Conference on Frontiers of Artificial Intelligence, Ethics, and Multidisciplinary Applications; 2024-10-01 - 2024-10-02.

Jakob Svane; Tomasz Wiktorski; Trygve Christian Eftestøl; Stein Ørn (2024) Differences in blood pressure and heart rate variability between individuals with and without coronary artery calcification during prolonged high-intensity endurance exercise. I: European Journal of Preventive Cardiology (EJPC). ISSN 2047-4873. Volum 31. DOI: 10.1093/eurjpc/zwae175.087

Trygve Christian Eftestøl; Mari Hognestad; Sander A. Søndeland; Ali Bahrami Rad; Elisabete Aramendi; Lars Wik; Jo Kramer-Johansen (2023) A Convolutional Neural Network Approach for Interpreting Cardiac Rhythms from Resuscitation of Cardiac Arrest Patients. Computing in Cardiology 2023; 2023-10-01 - 2023-10-04.

Neel Kanwal; Trygve Christian Eftestøl; Farbod Khoraminia; Zuiverloon Tahlita C. M; Kjersti Engan (2023) Vision Transformers for Small Histological Datasets Learned Through Knowledge Distillation. 27th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2023; 2023-05-25 - 2023-05-28.

Saul Fuster Navarro; Trygve Christian Eftestøl; Kjersti Engan (2022) Nested Multiple Instance Learning with Attention Mechanisms. ICMLA 2022; 2022-12-12 - 2022-12-14.

Saul Fuster Navarro; Trygve Christian Eftestøl; Kjersti Engan; Umay Kiraz; Vebjørn Kvikstad; Emiel Janssen (2022) Invasive Cancerous Area Detection in Non-Muscle Invasive Bladder Cancer Whole Slide Images. IVMSP 2022; 2022-06-26 - 2022-06-29.

Saul Fuster Navarro; Trygve Christian Eftestøl; Kjersti Engan; Umay Kiraz; Emiel Janssen; Vebjørn Kvikstad (2022) Towards Automatic Staging of NonMuscle Invasive Bladder Cancer. hAIST 22; 2022-06-13 - 2022-06-14.

Saul Fuster Navarro; Trygve Christian Eftestøl; Kjersti Engan; Umay Kiraz; Emiel Janssen; Vebjørn Kvikstad (2022) Towards Automatic Staging of Non-Muscle Invasive Bladder Cancer. NORA 2022; 2022-06-09 - 2022-06-10.

Saul Fuster Navarro; Kjersti Engan; Trygve Christian Eftestøl (2021) A Nested Multiple Instance Learning Framework. NOBIM 2021; 2021-09-13 - 2021-09-14.

Rune Wetteland; Kjersti Engan; Trygve Christian Eftestøl (2021) Parameterized Extraction of Tiles in Multilevel Gigapixel Images (Oral presentation). International Symposium on Image and Signal Processing and Analysis; 2021-09-13 - 2021-09-15.

Trygve Christian Eftestøl; Svein Erik Stokka; Jan Terje Kvaløy; Ali Bahrami Rad; Unai Irusta; Elisabete Aramendi; Erik Alonso; Trond Nordseth; Eirik Skogvoll; Lars Wik; Jo Kramer-Johansen (2020) A probabilistic function to model the relationship between quality of chest compressions and the physiological response for patients in cardiac arrest. Computing in Cardiology 2020; 2020-09-13 - 2020-09-16.

Magnus Bakke; Alexander Borgen; Anders Norvik; Gunnar Waage Skjeflo; Unai Irusta; Tomas Dybos Tannvik; Daniel Bergum; Elisabete Aramendi; Trygve Christian Eftestøl; Eirik Skogvoll (2019) Physiological effects of adrenaline in human cardiac arrest from PEA - a pilot study. Resuscitation Science Symposium; 2019-11-16 - 2019-11-17.

Rune Wetteland; Kjersti Engan; Vebjørn Kvikstad; Trygve Christian Eftestøl; Emiel Janssen (2019) Multiscale Deep Neural Networks for Multiclass Tissue Classification of Histological Whole-Slide Images. I: Medical Imaging with Deep Learning: MIDL 2019.

Jörn Schulz; Jan Terje Kvaløy; Kjersti Engan; Trygve Christian Eftestøl; Samwel Jatosh; Kidanto Hussein; Hege Langli Ersdal (2019) State transition modeling of complex monitored health data. 5th Joint Statistical Meeting DAGStat 2019; 2019-03-18 - 2019-03-22.

Simen Norrheim Larsen; Trygve Christian Eftestøl; Daniel Ferreira; Eric Westman; Carla Abdelnour; Dag Aarsland; Ketil Oppedal (2019) Data-assisted differential diagnosis of dementia by deep neural networks. Mohn Medical Imaging and Visualization Centre Conference; 2019-12-09 - 2019-12-10.

Jarle Urdal; Kjersti Engan; Trygve Christian Eftestøl; Ladislaus Blacy Yarrot; Hussein Kidanto; Hege Langli Ersdal (2019) Noise and Contraction Detection using Fetal Heart Rate and Accelerometer Signals During Labour. 17th Scandinavian Conference on Health Informatics (SHI2019); 2019-11-12 - 2019-11-13.

Øyvind Meinich-Bache; Kjersti Engan; Trygve Christian Eftestøl; Ivar Austvoll (2018) KINECT MODELLING OF CHEST COMPRESSIONS - A FEASIBILITY STUDY FOR CHEST COMPRESSION DEPTH MEASUREMENT USING DIGITAL STRATEGIES. International Conference on Image Processing (ICIP); 2018-10-07 - 2018-10-10.

Kjell Le; Trygve Christian Eftestøl; Kjersti Engan; Øyunn Kleiven; Stein Ørn (2018) Invariant electrical mean axis in electrocardiogram. Computing in cardiology 2018 ; 2018-09-23 - 2018-09-26.

Kjell Le; Trygve Christian Eftestøl; Kjersti Engan; Stein Ørn; Øyunn Kleiven (2018) High Frequency Noise Detection and Handling in ECG Signals. European Signal Processing Conference 2018; 2018-09-03 - 2018-09-07.

Trygve Christian Eftestøl; Svein Erik Stokka; Jan Terje Kvaløy; Ali Bahrami Rad; Unai Irusta; Elisabete Aramendi; Erik Alonso; Trond Nordseth; Eirik Skogvoll; Lars Wik; Jo Kramer-Johansen (2018) A machine learning approach to model a probabilistic relationship between parameters reflecting quality of chest compressions and physiological response during out-of-hospital cardiopulmonary resuscitation. ERC Congress 2018; 2018-09-20 - 2018-09-22.

Kjell Le; Trygve Christian Eftestøl; Kjersti Engan; Chunming Rong; Stein Ørn; Øyunn Kleiven (2018) Noise detection and handling in ECG signals. Norsk Forening for Bildebehandling og Mønstergjenkjenning; 2018-03-12 - 2018-03-13.

Rune Wetteland; Kjersti Engan; Trygve Christian Eftestøl; Vebjørn Kvikstad; Emiel Janssen (2018) Histological Image Segmentation of Bladder Cancer Using Machine Learning. NOBIM 2018 - National conference on image processing and pattern recognition; 2018-03-12 - 2018-03-13.

Trond Nordseth; Eirik Skogvoll; Trygve Christian Eftestøl; Jan Terje Kvaløy (2018) THE DYNAMIC CLINICAL COURSE OF PEDIATRIC ADVANCED LIFE SUPPORT IN IN-HOSPITAL CARDIAC ARREST. Resuscitation Science Symposium; 2018-11-10 - 2018-11-11.

Trond Nordseth; Trygve Christian Eftestøl; Eirik Skogvoll; Jan Terje Kvaløy (2018) WHICH FACTORS PROMOTE TRANSITION FROM PEA TO SPONTANEOUS CIRCULATION AND PEA RECURRENCE IN CHILDREN?. Resuscitation Science Symposium; 2018-11-10 - 2018-11-11.

Jarle Urdal; Kjersti Engan; Trygve Christian Eftestøl; Hussein Kidanto; Ladislaus Blacy Yarrot; Joar Eilevstjønn; Hege Langli Ersdal (2017) Signal Processing and Classification for Identification of Clinically Important Parameters During Neonatal Resuscitation. IEEE International Conference on Signal and Image Processing Applications (IEEE ICSIPA 2017); 2017-09-12 - 2017-09-14.

Øyvind Meinich-Bache; Kjersti Engan; Trygve Christian Eftestøl; Ivar Austvoll (2017) Detecting Chest Compression Depth Using a Smartphone Camera and Motion Segmentation. Scandinavian Conference on Image Analysis; 2017-06-12 - 2017-06-14.

Mahdieh Khanmohammadi; Kjersti Engan; Trygve Christian Eftestøl; charlotte sæland; Alf Inge Larsen (2017) SEGMENTATION OF CORONARY ARTERIES FROM X-RAY ANGIOGRAPHY SEQUENCES DURING CONTRAST FLUID PROPAGATION BY IMAGE REGISTRATION. IEEE Signal Processing ; 2017-11-14 - 2017-11-16.

Trygve Christian Eftestøl; Erlend Singsaas; Kjersti Engan; Leik Woie; Stein Ørn (2015) Automatic Detection of Microvascular Obstruction in Patients with Myocardial Infarction. Computing in Cardiology 2015; 2015-09-06 - 2015-09-09.

Trygve Christian Eftestøl (2015) Biomedical data analysis. Norway Pumps & Pipes; 2015-10-01.

Kjersti Engan; Valery Naranjo; Trygve Eftestøl; Stein Ørn; Leik Woie (2015) Segmentation of LG Enhanced Cardiac MRI. Bioimagin, Biosted; 2015-01-12 - 2015-01-15.

Huyen Vu; Trygve Eftestøl; Kjersti Engan; Joar Eilevstjønn; Jørgen Erland Linde; Hege Ersdal (2015) Exploratory Analysis of Ventilation Signals from Resuscitation Data of Newborns. Biosignals, Biostec; 2015-01-12 - 2015-01-15.

Vu Huyen; Trygve Eftestøl; Kjersti Engan; Joar Eilevstjønn; Jørgen Erland Linde; Hege Ersdal (2014) Exploratory Analysis of Heart Rate Changes in Newborns to Investigate the Effectiveness of Bag-Mask Ventilation. Computing in Cardiology 2014; 2014-09-07 - 2014-09-10.

Kjersti Engan; Leik Woie; Trygve Eftestøl (2014) Defining Angular and Radial Positions and Parameters for Myocardial Pixels in Cardiac MR Images. Computing in Cardiology 2014; 2014-09-07 - 2014-09-10.

Ali Bahrami Rad; Trygve Eftestøl; Jan Terje Kvaløy; Unai Ayala; Jo Kramer-Johansen; Kjersti Engan (2014) Nearest-manifold classification approach for cardiac arrest rhythm interpretation during resuscitation. International COnference on Acoustics, Speech, and Signal Processing (ICASSP) ; 2014-05-04 - 2014-05-09.

Trygve Eftestøl; Frode Måløy; Kjersti Engan; Lasya Priya Kotu; Leik Woie; Stein Ørn (2014) A Texture-based Probability Mapping for Localisation of Clinically Important Cardiac Segments in the Myocardium in Cardiac Magnetic Resonance Images from Myocardial Infarction Patients. International Conference on Image Processing (ICIP) ; 2014-10-27 - 2014-10-30.

Kjersti Engan; Valery Naranjo; Trygve Eftestøl; Leik Woie; Arthur Schuchter; Stein Ørn (2013) Automatic Detection of Heart Center in Late Gadolinium Enhanced MRI. MEDICON (Mediterranean Conference on Medical and Biological Engineering and Computing); 2013-09-25 - 2013-09-28.

Frode Måløy; Leik Woie; Trygve Eftestøl; Kjersti Engan; Stein Ørn (2013) Measuring the Degree of Fibrosity of Myocardial Scars from Late Gadolinium- Enhanced Cardiovascular Magnetic Resonance Images. Computing in Cardiology; 2013-09-22 - 2013-09-25.

Ali Bahrami Rad; Trygve Eftestøl; Jan Terje Kvaløy; Unai Ayala; Jo Kramer-Johansen; Kjersti Engan (2013) Probabilistic Classification Approaches for Cardiac Arrest Rhythm Interpretation during Resuscitation. Computing in Cardiology; 2013-09-22 - 2013-09-25.

Kjersti Engan; Valery Naranjo; Trygve Eftestøl; Stein Ørn; Leik Woie (2013) Automatic Segmentation of the Epicardium in Late Gadolinium Enhanced Cardiac MR Images. Computing in Cardiology; 2013-09-22 - 2013-09-25.

Trygve Eftestøl (2013) Signal and image processing projects in the biomedical data analysis research group. Sogndalsstrand 2013; 2013-11-25 - 2013-11-27.

Lasya Priya Kotu; Kjersti Engan; Trygve Eftestøl; Leik Woie; Stein Ørn; Aggelos Katsaggelos (2012) LOCAL BINARY PATTERNS USED ON CARDIAC MRI TO CLASSIFY HIGH AND LOW RISK PATIENT GROUPS. EUSIPCO 2012; 2012-08-27 - 2012-08-31.

Trygve Eftestøl (2012) Chest compressions: The good, the bad and the ugly. I: Resuscitation. ISSN 0300-9572. Volum 83. s.143-144. DOI: 10.1016/j.resuscitation.2011.12.022

Sofia Ruiz de Gauna; digna gonzales-otero; Jesus Ruiz; U Ayala; E Alonso; Trygve Eftestøl; Jo Kramer-Johansen (2012) Is rhythm analysis during chest compression pauses for ventilation feasible?. I: Resuscitation. ISSN 0300-9572. Volum 83. s.e8-e8.

Ketil Oppedal; Kjersti Engan; Dag Aarsland; Mona Kristiansen Beyer; Ole-Bjørn Tysnes; Trygve Eftestøl (2012) Using local binary pattern to classify dementia in MRI. IEEE International Symposium on Biomedical Imaging ; 2012-05-02 - 2012-05-05.

Trygve Eftestøl; Leik Woie; Kjersti Engan; Jan Terje Kvaløy; Dennis W.T. Nilsen; Stein Ørn (2012) Texture Analysis to Assess Risk of Serious Arrhythmias after Myocardial Infarction. Computing in Cardiology 2012; 2012-09-09 - 2012-09-12.

Trygve Eftestøl; Jan Terje Kvaløy; Dennis W.T. Nilsen; Leik Woie (2012) Analysis of Intracardiac Electrogram Changes. Computing in Cardiology 2012; 2012-09-09 - 2012-09-12.

U Ayala; Elisabete Aramendi; Unai Irusta; E Alonso; digna gonzales-otero; Trygve Eftestøl; Jo Kramer-Johansen; Andres Ingason (2012) Recommendations of the American Heart Association on the rhythm library specifications for the development of shock advice algorithms: Do they reflect the real scenario?. I: Resuscitation. ISSN 0300-9572. Volum 83. s.e66-e67.

Trond Nordseth; DP Edelson; Daniel Bergum; Theresa Mariero Olasveengen; Trygve Eftestøl; Ben Abella; Eirik Skogvoll (2011) Optimal CPR Loop Duration for Asystole and PEA during In-Hospital Cardiac Arrest. Resuscitation Science Symposium; 2011-11-12 - 2011-11-13.

Trond Nordseth; DP Edelson; Daniel Bergum; Theresa Mariero Olasveengen; Trygve Eftestøl; Ben Abella; Eirik Skogvoll (2011) Prevalence and Development of Clinical States during In-Hospital Cardiac Arrest. Resuscitation Science Symposium; 2011-11-12 - 2011-11-13.

Trond Nordseth; Dana P. Edelson; Daniel Bergum; Theresa Mariero Olasveengen; Trygve Eftestøl; Benjamin Abella; Eirik Skogvoll (2011) Optimal CPR Loop Duration for Asystole and Pulseless Electrical Activity During In-Hospital Cardiac Arrest. I: Circulation. ISSN 0009-7322. Volum 124.

Lasya Priya Kotu; Kjersti Engan; Trygve Eftestøl; Stein Ørn; Leik Woie (2011) TEXTURE CLASSIFICATION OF SCARRED AND NON-SCARRED MYOCARDIUM IN CARDIAC MRI USING LEARNED DICTIONARIES. ICIP 2011; 2011-09-11 - 2011-09-14.

Lasya Priya Kotu; Kjersti Engan; Trygve Eftestøl; Stein Ørn; Leik Woie (2011) Segmentation of Scarred and Non-Scarred Myocardium in LG Enhanced CMR Images using Intensity-Based Textural Analysis. EMBC 2011; 2011-08-30 - 2011-09-03.

D.M. Pampanin; E. Ravagnan; S. Apeland; N. Aarab; B.F. Godal; S. Westerlund; Dag Øystein Hjermann; Trygve Eftestøl; M. Budka; B. Gabrys; A. Viarengo; J. Barsiene (2010) The marine environment IQ concept Developing an index of the quality of the marine environment based on biomarkers: Integration of pollutant effects on marine organisms. I: Comparative Biochemistry and Physiology A. ISSN 1095-6433. Volum 157. s.S52-S52. DOI: 10.1016/j.cbpa.2010.06.148

Kjersti Engan; Trygve Eftestøl; Stein Ørn; Jan Terje Kvaløy; Leik Woie (2010) Exploratory Data Analysis of Image Texture and Statistical Features on Myocardium and Infarction Areas in Cardiac Magnetic Resonance Images. International Conference of the IEEE Engineering in Medicine and Biology Society; 2010-08-31 - 2010-09-04.

Jan Terje Kvaløy; Eirik Skogvoll; Trygve Eftestøl; Kenneth Gundersen; Jo Kramer-Johansen; Theresa Mariero Olasveengen; Petter Andreas Steen (2010) Analysing clinical state transitions during cardiopulmonary resuscitation. ISCB2010; 2010-08-29 - 2010-09-02.

Trygve Eftestøl (2009) Controlling true positive rate in ROC analysis. Computers in Cardiology 2009; 2009-09-13 - 2009-09-16.

Kari Anne Haaland Thorsen; Trygve Eftestøl; Chunming Rong; Petter Andreas Steen (2009) An Integrated Information Sharing Structure for Resuscitation Data. AINA (Advanced Information Networking and Applications) 2009; 2009-05-26 - 2009-05-29.

Thomas Kjosmoen; Tom Ryen; Trygve Eftestøl (2009) Exploring the combinatorics of motif alignments for accurately computing E-values from p-values. International Conference on Bioinformatics and Biotechnology; 2009-04-28 - 2009-04-30.

Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Trygve Eftestøl (2008) Using ECG-analysis to quantify the effect of increasing pre-shock pauses in chest compressions on the probability of ROSC. I: Resuscitation. ISSN 0300-9572. s.18-18.

Jan Terje Kvaløy; Eirik Skogvoll; Trygve Eftestøl; Kenneth Gundersen; Jo Kramer-Johansen; Theresa Mariero Olasveengen; Petter Andreas Steen (2008) Identifying factors influencing clinical state transitions in cardiac arrest resuscitation. I: Resuscitation. ISSN 0300-9572. s.70-70.

Trygve Eftestøl (2008) Signal processing and analysis of data from therapy of cardiac arrest patients. utenTitteltekst; 2008-12-10.

Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Theresa Mariero Olasveengen; Trygve Eftestøl (2008) The effect of using within-patient correlation to improve shock outcome prediction. I: Resuscitation. ISSN 0300-9572. s.17-17.

Theresa Mariero Olasveengen; Trygve Eftestøl; Kenneth Gundersen; Petter Andreas Steen; Lars Wik; Kjetil Sunde (2008) Ventricular fibrillation characteristics are different in patients with coronary heart disease compared to patients with a primary arrhythmia. I: Resuscitation. ISSN 0300-9572. s.16-16.

L. Woie; Trygve Eftestøl; Terje Jan Kvaløy; Torbjørn Aarsland; K. Tjelta; DWT Nilsen (2008) Intracardiac electrocardiographic (EGM) morphology changes in patients with implantable cardioverter defibrillator (ICD). I: Circulation. ISSN 0009-7322. s.238-238.

Øystein Johansen; Tom Ryen; Trygve Eftestøl; Thomas Kjosmoen; Peter Ruoff (2008) Splice Site Prediction using Artificial Neural Networks. FIFTH INTERNATIONAL MEETING ON COMPUTATIONAL INTELLIGENCE METHODS FOR BIOINFORMATICS AND BIOSTATISTICS; 2008-10-03 - 2008-10-04.

L. Woie; Trygve Eftestøl; Jan Terje Kvaløy; Torbjørn Aarsland; K. Tjelta; DWT Nilsen (2008) Intracardiac electrocardiographic (EGM) morphology changes in patients with implantable cardioverter defibrillator (ICD). World Congress on Cardiology; 2008-05-18 - 2008-05-21.

Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Petter Andreas Steen; Trygve Eftestøl (2008) Using ECG-analysis to quantify the effect of increasing pre-shock pauses in chest compressions on the probability of ROSC. Ninth Congress of the European Resuscitation Council; 2008-05-22 - 2008-05-24.

Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Theresa Mariero Olasveengen; Joar Eilevstjønn; Trygve Eftestøl (2008) The effect of using within-patient correlation to improve shock outcome prediction. Ninth Congress of the European Resuscitation Council; 2008-05-22 - 2008-05-24.

Trygve Eftestøl (2007) Signal processing and pattern recognition in resuscitation science. Symposium on ECG signal processing; 2007-07-05 - 2007-07-06.

Trygve Eftestøl (2007) A research experience in bioengineering in Norway. Symposium on ECG signal processing; 2007-07-05 - 2007-07-06.

Kenneth Gundersen; Jan Terje Kvaløy; Trygve Eftestøl; Petter Andreas Steen; Jo Kramer-Johansen; Lars Wik; Fritz Sterz; Heidrun Losert; Sven Ole Aase (2006) Random effects in shock outcome prediction. I: Resuscitation. ISSN 0300-9572. s.1-1.

Trygve Eftestøl; Tom Ryen; Sven Ole Aase; Cassian Strässle; Marcus Boos; Guido M. Schuster; Peter Ruoff (2006) Eukaryotic gene prediction by spectral analysis and pattern recognition techniques. The 7th Nordic Signal Processing Symposium - NORSIG 2006; 2006-06-07 - 2006-06-09.

Martin Risdal; Petter Andreas Steen; Jo Kramer-Johansen; Lars Wik; Fritz Sterz; Heidrun Losert; Sven Ole Aase; Trygve Eftestøl (2006) Discriminating between PEA and pulse circulating rhythm using ECG. I: Resuscitation. ISSN 0300-9572. s.1-1.

Andreas Neurauter; Trygve Eftestøl; Jo Kramer-Johansen; Volker Wenzel; Karl Lindner; Joar Eilevstjønn; Helge Myklebust; Petter Andreas Steen; Hans Ulrich Strohmenger (2006) Prediction of countershock success employing single feature analysis from ventricular fibrillation power bands or feature combination using neural networks. I: Resuscitation. ISSN 0300-9572. s.1-1.

Trygve Eftestøl (2006) Matematikk på liv og død?. Åpen fagdag 2006; 2006-11-29.

Kenneth Gundersen; Jan Terje Kvaløy; Trygve Eftestøl; Petter Andreas Steen; Jo Kramer-Johansen; Lars Wik; Fritz Sterz; Heidrun Losert; Sven Ole Aase (2006) Improved shock outcome prediction from a random model. I: Resuscitation. ISSN 0300-9572. s.1-1.

Inge Dragsund; Kenneth Gundersen; Martin Risdal; Jo Kramer-Johansen; Ben Abella; dana edelson; Fritz Sterz; Trygve Eftestøl (2006) Analysing the dynamics of pulseless electrical activity during cardiopulmonary resuscitation. Computers in Cardiology 2006; 2006-09-17 - 2006-09-20.

Trygve Eftestøl; Eirik Skogvoll; Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Petter Andreas Steen (2006) Information structuring and symbolic representation for analysis of resuscitation data. The 7th Nordic Signal Processing Symposium- NORSIG 2006; 2006-06-07 - 2006-06-09.

Trygve Eftestøl (2006) Waveform analysis - the way to improve survival?. Eigth Congress of the European Resuscitation Council; 2006-05-10 - 2006-05-13.

Martin Risdal; Heidrun Losert; Fritz Sterz; Sven Ole Aase; Trygve Eftestøl (2006) Using thoracic impedance for identification of return of spontaneous circulation during resuscitation. 7th nordic signal processing symposium; 2006-06-07 - 2006-06-09.

Kenneth Gundersen; Jan Terje Kvaløy; Trygve Eftestøl; Petter Andreas Steen; Jo Kramer-Johansen; Lars Wik; Fritz Sterz; Heidrun Losert; Sven Ole Aase (2006) Random effects in shock outcome prediction. Resuscitation 2006; 2006-05-10 - 2006-05-13.

Eirik Skogvoll; Trygve Eftestøl; Kenneth Gundersen; Jan Terje Kvaløy; Jo Kramer-Johansen; Petter Andreas Steen (2006) The dynamics of cardiac arrest - clinical state transitions during CPR. Resuscitation 2006; 2006-05-10 - 2006-05-13.

Jan Terje Kvaløy; Trygve Eftestøl; Kenneth Gundersen; Eirik Skogvoll; Jo Kramer-Johansen; Petter Andreas Steen (2006) Analysis of factors influencing clinical state transitions in cardiac arrest. I: Resuscitation. ISSN 0300-9572. s.129-129.

Martin Risdal; Sven Ole Aase; Trygve Eftestøl (2005) Arbitrary feature space dimensionality reduction with focus on loss of discrimination for two-class problems. Norsk symposium i signalbehandling; 2005-09-22 - 2005-09-24.

Martin Risdal; Trygve Eftestøl; Sven Ole Aase; Petter Andreas Steen; Tone Sleveland; Lars Wik; Jo Kramer-Johansen; Fritz Sterz; Heidrun Losert (2005) Improving rhythm classification using electrocardiogram and thorax impedance recorded by automated external defibrillators. Norsk symposium i signalbehandling; 2005-09-22 - 2005-09-24.

Martin Risdal; Mette Stavland; Sven Ole Aase; Trygve Eftestøl (2005) IMPEDANCE-BASED VENTILATION DETECTION DURING CARDIOPULMONARY RESUSCITATION USING A NEURAL NETWORK. 3rd European Medical & Biological Engineering Conference; 2005-11-20 - 2005-11-25.

Trygve Eftestøl (2005) Signalbehandling og mønstergjenkjenning innen akuttmedisin. Industrisemninar 2005, Norsk forening for bildebehandling og mønstergjenkjenning; 2005-09-22.

Martin Risdal; Heidrun Losert; Jon Nysæther; Sven Ole Aase; Fritz Sterz; Trygve Eftestøl (2005) NON-INVASIVE VENTILATION MONITORING DURING CARDIOPULMONARY RESUSCITATION BY MEANS OF THORACIC IMPEDANCE. 3rd Eurpean Medical & Biological Engineering Conference; 2005-11-20 - 2005-11-25.

Martin Risdal; Heidrun Losert; Jon Nysæther; Sven Ole Aase; Fritz Sterz; Trygve Eftestøl (2005) VENTILATION CLASSIFICATION FOR CARDIOPULMONARY RESUSCITATION QUALITY MONITORING USING THORACIC IMPEDANCE. 3rd European Medical & Biological Engineering Conference; 2005-11-20 - 2005-11-25.

Trygve Eftestøl; Martin Risdal; Joar Eilevstjønn; Petter Andreas Steen (2005) Advanced life support therapy on out-of-hospital cardiac arrest patients: Applying signal processing and pattern recognition methods. I: MIC Journal: Modeling, Identification and Control. ISSN 0332-7353. Volum 26. s.221-235.

Martin Risdal; Sven Ole Aase; Trygve Eftestøl (2005) Examining the Potential of Using Thorax Impedance Measured by Automated External Defibrillators for Quantification of Circulation. 32nd annual international conference on Computers in Cardiology; 2005-09-25 - 2005-09-28.

Joar Eilevstjønn; Trygve Eftestøl; Jo Kramer-Johansen; Petter Andreas Steen (2004) Reducing the no flow time in automated external defibrillation. Seventh Congress of the European Resuscitation Council, ERC; 2004-09-08 - 2004-09-11.

Trygve Eftestøl; Lars Wik; Kjetil Sunde; Petter Andreas Steen (2004) CPR causes changes in predictors of VF defibrillation success during out-of-hospital cardiac arrest. Seventh Congress of the European Resuscitation Council; 2004-09-08 - 2004-09-11.

Jamie Watson; Nopadol Uchaipichat; Paul S Addison; Gareth R Clegg; Colin Robertson; Trygve Eftestøl; Petter Andreas Steen (2004) Novel wavelet transform methods predict defibrillation success for out-of-hospital cardiac arrest. Seventh Congress of the European Resuscitation Council; 2004-09-08 - 2004-09-11.

Joar Eilevstjønn; Trygve Eftestøl; Petter Andreas Steen (2003) Reducing The Hands-Off Interval By Filtering CPR Artefacts In ECG. The 6th Scandinavian CPR-congress; 2003-09-04 - 2003-09-06.

Trygve Eftestøl (2003) Ingeniøren, kan de hjelpe oss? Engineers - can they help us?. Den 6. skandinaviske HLR-kongressen; 2003-09-04 - 2003-09-06.

Joar Eilevstjønn; John Håkon Husøy; Trygve Eftestøl; Sven Ole Aase; Petter Andreas Steen (2002) Multichannel adaptive filtering using an efficient matching pursuit-like algorithm for removal of CPR artifacts in ECG signals. 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2002); 2002-05-13 - 2002-05-17.

Trygve Eftestøl; Kjetil Sunde; Petter Andreas Steen (2002) The effects of interrupting precordial compressions on the calculated probability of defibrillation success in out-of-hospital cardiac arrest patients. European Resuscitation Council Scientific Congress; 2002-10-02 - 2002-10-05.

Nopadol Uchaipichat; Paul S Addison; Jamie Watson; Gareth R Clegg; Colin Robertson; Petter Andreas Steen; Trygve Eftestøl (2002) Wavelet Power Spectrum Analysis of Cardiac Arrhythmias: Ventricular Fibrillation. The Engineering Institute of Thailand 24th Electrical Engineering Conference; 2002-11-22 - 2002-11-23.

Paul S Addison; Nopadol Uchaipichat; Jamie Watson; Gareth R Clegg; Colin Robertson; Petter Andreas Steen; Trygve Eftestøl (2002) Positional Depedence of Time-Frequency Information in the Electrocardiograph used for the Prediction of Successful Defibrillation. 2nd European Medical and Biological Engineering Conference; 2002-12-04 - 2002-12-08.

Nopadol Uchaipichat; Jamie Watson; Paul S Addison; Gareth R Clegg; Colin Robertson; Petter Andreas Steen; Trygve Eftestøl (2002) Optimal pre-shock signal length for time-frequency classification used in the predicition of successful defibrillation. The International Congress on Biological and Medical Engineering 2002; 2002-12-04 - 2002-12-07.

Paul S Addison; Nopadol Uchaipichat; Jamie Watson; Gareth R Clegg; Colin Robertson; Petter Andreas Steen; Trygve Eftestøl (2001) Wavelet power spectrum-based prediction of successful defibrillation from ventricular fibrillation. Engineering in Medicine and Biology Society, 2001. The 23rd Annual International Conference of the IEEE , 2001; 2001-10-25 - 2001-10-28.

Kjetil Sunde; Trygve Eftestøl; Christian Askenberg; Petter Andreas Steen (2001) Kvalitetsvurdering av avansert hjerte-lunge-redning i ambulansetjenesten i Oslo ved analysering av defibrillatorens datamodul. NAF;

Kjetil Sunde; Trygve Eftestøl; Petter Andreas Steen (2001) Prehospital hjertestans - resultater etter to års Utstein-registrering ved ambulansetjenesten i Oslo. NAF;

Sven Ole Aase; John Håkon Husøy; Trygve Eftestøl (2000) Optimum CPR artefact removal in human ECG signals. Proc.Biosignal 2000; 2000-06-26 - 2000-06-28.

Trygve Eftestøl; Kjetil Sunde; Sven Ole Aase; John Håkon Husøy; Petter Andreas Steen (2000) Monitoring the "probability of successful defibrillation" during CPR in out-of-hospital cardiac arrested patients. Scientific sessions 2000;

Kjetil Sunde; Trygve Eftestøl; Petter Andreas Steen (2000) Survival rate depends on place of collapse in patients with out-of-hospital cardiac arrest in Oslo. Fifth congress of the European Resuscitation Council, ERC;

Trygve Eftestøl; Kjetil Sunde; Sven Ole Aase; John Håkon Husøy; Petter Andreas Steen (2000) Predicting defibrillation outcome from VF-characteristics in out-of-hospital cardiac arrest. Fifth congress of the European Resuscitation Council, ERC;

Trygve Eftestøl; Sven Ole Aase; John Håkon Husøy (2000) A method for detection of signal harmonics in the spectrum. Computers in Cardiology 1999;

Trygve Eftestøl; Sven Ole Aase; John Håkon Husøy (2000) Spectral characterization of ECG in out-of-hospital cardiac arrest patients. Computers in Cardiology 1999;

Trygve Eftestøl; Sven Ole Aase; John Håkon Husøy (1999) Spectral flatness measure for characterising changes in cardiac arrhythmias. NOBIM konferansen 1998;

Trygve Eftestøl; Sven Ole Aase; John Håkon Husøy; H. K. Chang; Y. T. Zhang (1999) A flexible pattern recognition system for analysis of ECG and related demographics and annotations. 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society;

Trygve Eftestøl; Sven Ole Aase; John Håkon Husøy (1999) Characterisation og changes in cardiac arrhythmias using spectral parameters. NORSIG '97;

Trygve Eftestøl; G.E. Øien (1998) ECG rhythm classification using artificial neural networks. IEEE DSP Workshop;

Kilde: Nasjonalt vitenarkiv