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Showing results 1-50 of 76 << Previous 1 2    Next >>

2024
1 Hou, Jie; Nesaragi, Naimahmed; Tronstad, Christian.
Electrical bioimpedance in the era of artificial intelligence. Journal of Electrical Bioimpedance 2024 ;Volume 15.(1) p. 1-3
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2023
2 Bull, Emilie Meyer; Audunsdottir, Kristin; Jacobsen, Henrik Børsting; Kang, Heemin; Sartorius, Alina Marie; Glaser, Bernt Damian; Deilhaug, Elisabeth; Szabo, Attila; Tronstad, Christian; Westlye, Lars Tjelta; Andreassen, Ole; Hassel, Bjørnar; Nærland, Terje; Quintana, Daniel.
Heart Rate Variability and Pain: A Protocol for a Systematic Review and Meta-Analysis. OSF Preprints 2023
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3 Kildal, Emilie Smith-Meyer; Quintana, Daniel; Szabo, Attila; Tronstad, Christian; Andreassen, Ole; Nærland, Terje; Hassel, Bjørnar.
Heart rate monitoring to detect acute pain in non-verbal patients: a study protocol for a randomized controlled clinical trial. BMC Psychiatry 2023 ;Volume 23.(1) p. -
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2022
4 Azulay, Naomi; Bjørkholt Olsen, Roy; Nielsen, Christopher Sivert; Stubhaug, Audun; Jenssen, Trond Geir; Schirmer, Henrik; Frigessi, Arnoldo; Rosseland, Leiv Arne; Tronstad, Christian.
Reduced heart rate variability is related to the number of metabolic syndrome components and manifest diabetes in the sixth Tromsø study 2007–2008. Scientific Reports 2022 ;Volume 12. p. -
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5 Hou, Jie; Strand-Amundsen, Runar James; Tronstad, Christian; Tønnessen, Tor Inge; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem.
Small intestinal viability assessment using dielectric relaxation spectroscopy and deep learning. Scientific Reports 2022 ;Volume 12.(1) p. -
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6 Tronstad, Christian; Amini, Maryam; Bach, Dominik R.; Martinsen, Ørjan Grøttem.
Current trends and opportunities in the methodology of electrodermal activity measurement. Physiological Measurement 2022 ;Volume 43.(2) p. -
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7 Tronstad, Christian; Amini, Maryam; Olesen, Eline; Qvigstad, Elisabeth; Pabst, Oliver; Martinsen, Tormod; Abie, Sisay Mebre; Martinsen, Ørjan Grøttem; Hisdal, Jonny; Jenssen, Trond G.; Kalvøy, Håvard.
Diabetic foot assessment using skin impedance in a custom made sensor-sock. Journal of Electrical Bioimpedance 2022 ;Volume 13.(1) p. 136-142
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8 Tronstad, Christian; Pabst, Oliver; Amini, Maryam; Kleggetveit, Inge Petter; Elvebakk, Ole; Martinsen, Ørjan Grøttem; Jenssen, Trond G.; Hisdal, Jonny; Berg, Tore Julsrud; Qvigstad, Elisabeth.
Development of a prototype toe sensor for detection of diabetic peripheral small fiber neuropathy. Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 2022
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2021
9 Haidl, Felix; Tronstad, Christian; Rosseland, Leiv Arne; Dahl, Vegard.
Maternal haemodynamics during labour epidural analgesia with and without adrenaline. Scandinavian Journal of Pain 2021 ;Volume 21.(4) p. 680-687
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10 Hou, Jie; Strand-Amundsen, Runar James; Tronstad, Christian; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem; Tønnessen, Tor Inge.
Automatic prediction of ischemia-reperfusion injury of small intestine using convolutional neural networks: A pilot study. Sensors 2021 ;Volume 21.(19) p. -
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11 Ibba, P.; Tronstad, Christian; Moscetti, R.; Mimmo, T.; Cantarella, G.; Petti, L.; Martinsen, Ørjan Grøttem; Lugli, P..
Supervised binary classification methods for strawberry ripeness discrimination from bioimpedance data. Scientific Reports 2021 ;Volume 11.
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12 Jacobsen, Fredrik Alstad; Hafli, Ellen Wold; Tronstad, Christian; Martinsen, Ørjan Grøttem.
Classification of emotions based on electrodermal activity and transfer learning - a pilot study. Journal of Electrical Bioimpedance 2021 ;Volume 12.(1) p. 178-183
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13 Michelsen, Trond Melbye; Tronstad, Christian; Rosseland, Leiv Arne.
Blood pressure and cardiac output during caesarean delivery under spinal anaesthesia: A prospective cohort study. BMJ Open 2021 ;Volume 11.(6) p. 1-9
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14 Singstad, Bjørn Jostein; Azulay, Naomi; Bjurstedt, Andreas; Bjørndal, Simen Chill; Flø Drageseth, Magnus; Austdal, Lars Peter Engeset; Eriksen, Kari; Gidey, Muluberhan Yonas; Granum, Espen; Greaker, Matias G.; Grorud, Amund; Hewes, Sebastian O.; Hou, Jie; Llop Recha, Adrian Miguel; Matre, Christoffer; Seputis, Arnoldas; Sørensen, Simen Ekstrøm; Thøgersen, V.; Joten, Vegard Munkeby; Tronstad, Christian; Martinsen, Ørjan Grøttem.
Estimation of heart rate variability from finger photoplethysmography during rest, mild exercise and mild mental stress. Journal of Electrical Bioimpedance 2021 ;Volume 12.(1) p. 89-102
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15 Strand-Amundsen, Runar James; Tronstad, Christian; Elvebakk, Ole; Martinsen, Tormod; Dybwad, Marius; Lingaas, Egil; Tønnessen, Tor Inge.
Quantification of aerosol dispersal from suspected aerosol-generating procedures. European Respiratory Journal Open Research (ERJ Open Research) 2021 ;Volume 7:00206-2021.(4) p. 1-12
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16 Wiegerinck, Anouk; Thomsen, Andreas; Hisdal, Jonny; Kalvøy, Håvard; Tronstad, Christian.
Electrical impedance plethysmography versus tonometry to measure the pulse wave velocity in peripheral arteries in young healthy volunteers: a pilot study. Journal of Electrical Bioimpedance 2021 ;Volume 12.(1) p. 169-177
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2020
17 Amini, Maryam; Niemi, Essi Maria; Hisdal, Jonny; Kalvøy, Håvard; Tronstad, Christian; Scholz, Hanne; Rosales, Antonio; Martinsen, Ørjan Grøttem.
Monitoring the quality of frozen-thawed venous segments using bioimpedance spectroscopy. Physiological Measurement 2020 ;Volume 41.(4)
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18 Bari, Dindar S.; Aldosky, Haval Y. Yacoob; Tronstad, Christian; Martinsen, Ørjan Grøttem.
The correlations among the skin conductance features responding to physiological stress stimuli. Skin Research and Technology 2020 p. 1-7
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19 Omenås, Ivar Nagelgaard; Tronstad, Christian; Rosseland, Leiv Arne.
Accuracy and trending abilities of finger plethysmographic blood pressure and cardiac output compared to invasive measurements during caesarean delivery in healthy women: An observational study. BMC Anesthesiology 2020 ;Volume 20.(157)
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20 Tronstad, Christian; Martinsen, Tormod; Olsen, Morten; Rosseland, Leiv Arne; Pettersen, Fred-Johan; Martinsen, Ørjan Grøttem; Høgetveit, Jan Olav; Kalvøy, Håvard.
Splitting one ventilator for multiple patients - a technical assessment. arXiv.org 2020
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2019
21 Andersen, Jan-Hugo; Bjerke, Olav; Blakaj, Fatos; Flugsrud, Vilde Moe; Jacobsen, Fredrik Alstad; Jonsson, Marius; Kosaka, Eirik Nobuki; Langstrand, Petter André; Martinsen, Øyvind Grannes; Moen, Alexander Stene; Moen, Emily Qing Zang; Nystad, Øyvind Knutsen; Qureshi, Mahum; Olesen, Eline; Risopatròn, Victor Josè Østrem; Ruud, Simen Kristoffer; Stensø, Nikolai; Winje, Fredrik; Winness, Eirik Vetle; Abie, Sisay Mebre; Joten, Vegard Munkeby; Tronstad, Christian; Elvebakk, Ole; Martinsen, Ørjan Grøttem.
Bioimpedance and NIR for non-invasive assessment of blood glucose. Journal of Electrical Bioimpedance 2019 ;Volume 10. p. 133-138
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22 Aria, Shafa; Elfarri, Yassine; Elvegård, Marius; Gottfridsson, Adam; Grønaas, Halvor; Harang, Sigve Smedsrud; Jensen, Anders; Madland, Thomas Emil Rolland; Martins, Ivar Bruvik; Olstad, Marius Wilhelm; Ryan, Tommy Lee; Shaban, Anwar Nazih; Svenningsen, Øyvind Løken; Sørensen, Andre Djupvik; Ulvestad, Emil Holm; Vister, Ole Martin; Øvergaard, Morten Bratgjerd; Kalvøy, Håvard; Pettersen, Fred-Johan; Odland, Hans Henrik; Joten, Vegard Munkeby; Martinsen, Øyvind Grannes; Tronstad, Christian; Elvebakk, Ole; Martinsen, Ørjan Grøttem.
Measuring blood pulse wave velocity with bioimpedance in different age groups. Sensors 2019 ;Volume 19:850.(4) p. 1-10
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23 Bjørhei, Andreas; Pedersen, Filip T.; Muhammad, Saeed; Tronstad, Christian; Kalvøy, Håvard; Wojniusz, Slawomir; Pabst, Oliver; Sütterlin, Stefan.
An investigation on bilateral asymmetry in electrodermal activity. Frontiers in Behavioral Neuroscience 2019 ;Volume 13.(88)
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24 Elvebakk, Ole; Tronstad, Christian; Birkeland, Kåre I.; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne; Gulseth, Hanne Løvdal; Kalvøy, Håvard; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem.
A multiparameter model for non-invasive detection of hypoglycemia. Physiological Measurement 2019 ;Volume 40.(8) p. 1-14
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25 Elvebakk, Ole; Tronstad, Christian; Birkeland, Kåre Inge; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne; Frøslie, Kathrine Frey; Godang, Kristin; Kalvøy, Håvard; Martinsen, Ørjan Grøttem; Gulseth, Hanne Løvdal.
Author Correction: Evaluation of Hypoglycaemia with Non-Invasive Sensors in People with Type 1 Diabetes and Impaired Awareness of Hypoglycaemia (Scientific Reports, (2018), 8, 1, (14722), 10.1038/s41598-018-33189-1). Scientific Reports 2019 ;Volume 9.(1) p. -
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26 Martinsen, Tormod; Pettersen, Fred-Johan; Kalvøy, Håvard; Tronstad, Christian; Kvarstein, Gunnvald; Bakken, André; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem; Grimnes, Sverre; Frich, Lars Inge.
Electrosurgery and temperature increase in tissue with a passive metal implant. Frontiers in surgery 2019 ;Volume 6:8. p. 1-8
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27 Martinsen, Ørjan Grøttem; Kalvøy, Håvard; Bari, Dindar S.; Tronstad, Christian.
A circuit for simultaneous measurements of skin electrical conductance, susceptance, and potential. Journal of Electrical Bioimpedance 2019 ;Volume 10. p. 110-112
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28 Tronstad, Christian; Elvebakk, Ole; Staal, Odd Martin; Kalvøy, Håvard; Høgetveit, Jan Olav; Jenssen, Trond Geir; Birkeland, Kåre I.; Martinsen, Ørjan Grøttem.
Non-invasive prediction of blood glucose trends during hypoglycemia. Analytica Chimica Acta 2019 ;Volume 1052. p. 37-48
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29 Tronstad, Christian; Høgetveit, Jan Olav; Elvebakk, Ole; Kalvøy, Håvard.
Age-related differences in the morphology of the impedance cardiography signal. Journal of Electrical Bioimpedance 2019 ;Volume 10.(1) p. 139-145
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30 Tronstad, Christian; Strand-Amundsen, Runar James.
Possibilities in the application of machine learning on bioimpedance time-series. Journal of Electrical Bioimpedance 2019 ;Volume 10.(1) p. 24-33
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2018
31 Bari, D. S.; Aldosoky, H. Y. Y.; Tronstad, Christian; Kalvøy, Håvard; Martinsen, Ørjan Grøttem.
Electrodermal activity responses for quantitative assessment of felt pain. Journal of Electrical Bioimpedance 2018 ;Volume 9. p. 52-58
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32 Bari, Dindar S.; Aldosky, Haval Y. Yacoob; Tronstad, Christian; Kalvøy, Håvard; Martinsen, Ørjan Grøttem.
Influence of relative humidity on electrodermal levels and responses. Skin Pharmacology and Physiology 2018 ;Volume 31. p. 298-307
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33 Bruehl, Stephen; Bjørkholt Olsen, Roy; Tronstad, Christian; Sevre, Knut; Burns, John W; Schirmer, Henrik; Nielsen, Christopher Sivert; Stubhaug, Audun; Rosseland, Leiv Arne.
Chronic pain-related changes in cardiovascular regulation and impact on comorbid hypertension in a general population: the Tromsø study. Pain 2018 ;Volume 159.(1) p. 119-127
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34 Elvebakk, Ole; Tronstad, Christian; Birkeland, Kåre I.; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne; Frøslie, Kathrine Frey; Godang, Kristin; Kalvøy, Håvard; Martinsen, Ørjan Grøttem; Gulseth, Hanne Løvdal.
Evaluation of hypoglycaemia with non-invasive sensors in people with type 1 diabetes and impaired awareness of hypoglycaemia. Scientific Reports 2018 ;Volume 8:14722. p. 1-11
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35 Pabst, Oliver.
Electrical properties of human skin: From linear recordings of exogenous electrodermal activity to non-linear memristor measurements. Oslo: Universitetet i Oslo 2018 ;Volume 2018.Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.(1971)
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36 Strand-Amundsen, Runar James; Tronstad, Christian; Kalvøy, Håvard; Ruud, Tom Erik; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem; Tønnessen, Tor Inge.
Small intestinal ischemia and reperfusion - Bioimpedance measurements. Physiological Measurement 2018 ;Volume 39.(2) p. -
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37 Strand-Amundsen, Runar James; Tronstad, Christian; Reims, Henrik Mikael; Reinholt, Finn P.; Høgetveit, Jan Olav; Tønnessen, Tor Inge.
Machine learning for intraoperative prediction of viability in ischemic small intestine. Physiological Measurement 2018 ;Volume 39.(10) p. 1-16
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2017
38 Bari, D. S.; Aldosky, H. Y. Y.; Tronstad, Christian; Kalvøy, Håvard; Martinsen, Ørjan Grøttem.
Electrodermal responses to discrete stimuli measured by skin conductance, skin potential, and skin susceptance. Skin Research and Technology 2017 ;Volume 24.(1) p. 108-116
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39 Kalvøy, Håvard; Tronstad, Christian; Ullensvang, Kyrre; Steinfeldt, Thorsten; Sauter, Axel Rudolf.
Detection of needle to nerve contact based on electric bioimpedance and machine learning methods. IEEE Engineering in Medicine and Biology Society. Conference Proceedings 2017 p. 9-12
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40 Pabst, Oliver; Tronstad, Christian; Grimnes, Sverre; Fowles, Don C.; Martinsen, Ørjan Grøttem.
Comparison between the AC and DC measurement of electrodermal activity. Psychophysiology 2017 ;Volume 54.(3) p. 374-385
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41 Pabst, Oliver; Tronstad, Christian; Martinsen, Ørjan Grøttem.
Instrumentation, electrode choice and challenges in human skin memristor measurement. IEEE Engineering in Medicine and Biology Society. Conference Proceedings 2017 p. 1844-1848
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42 Strand-Amundsen, Runar James; Reims, Henrik Mikael; Tronstad, Christian; Kalvøy, Håvard; Martinsen, Ørjan Grøttem; Høgetveit, Jan Olav; Ruud, Tom Erik; Tønnessen, Tor Inge.
Ischemic small intestine - In vivo versus ex vivo bioimpedance measurements. Physiological Measurement 2017 ;Volume 38.(5) p. 715-728
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43 Tronstad, Christian; Elvebakk, Ole; Kalvøy, Håvard; Bjørgaas, Marit Ragnhild Rokne; Martinsen, Ørjan Grøttem.
Detection of sympathoadrenal discharge by parameterisation of skin conductance and ECG measurement. IEEE Engineering in Medicine and Biology Society. Conference Proceedings 2017 p. 3997-4000
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2016
44 Kalvøy, Håvard; Sauter, Axel Rudolf; Tronstad, Christian; Martinsen, Ørjan Grøttem.
Neural tissue discrimination with machine learning methods. Proceedings of the 16th International Conference on Electrical Bioimpedance 2016 p. 71-
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45 Nygaard, Kent Inge; Thiara, Amrit Paul Singh; Tronstad, Christian; Ringdal, Mari-Anne I Lindstein; Fiane, Arnt E.
VAVD vacuum may cause bubble transgression in membrane oxygenators. Perfusion 2016 ;Volume 31.(8) p. 648-652
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46 Pabst, Oliver; Tronstad, Christian; Martinsen, Ørjan Grøttem; Grimnes, Sverre.
Comparison between AC and DC exosomatic EDA measuring methods. Proceedings of the 16th International Conference on Electrical Bioimpedance 2016 p. 65-
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47 Strand-Amundsen, Runar James; Tronstad, Christian; Kalvøy, Håvard; Gundersen, Yngvar; Krohn, Claus Danckert; Aasen, Ansgar Oddne; Holhjem, Lars; Reims, Henrik Mikael; Martinsen, Ørjan Grøttem; Høgetveit, Jan Olav; Ruud, Tom Erik; Tønnessen, Tor Inge.
In vivo characterization of ischemic small intestine using bioimpedance measurements. Physiological Measurement 2016 ;Volume 37.(2) p. 257-275
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48 Strand-Amundsen, Runar James; Tronstad, Christian; Martinsen, Ørjan Grøttem; Høgetveit, Jan Olav; Ruud, TE; Tønnessen, Tor Inge.
Bioimpedance - in vivo vs in vitro ischemic small intestine. Proceedings of the 16th International Conference on Electrical Bioimpedance 2016 p. 53-
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49 Tronstad, Christian; Elvebakk, Ole; Martinsen, Ørjan Grøttem; Kalvøy, Håvard; Høgetveit, Jan Olav.
Bioimpedance for prediction of hypoglycemic trends. Proceedings of the 16th International Conference on Electrical Bioimpedance 2016 p. -
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2015
50 Elvebakk, Ole; Tronstad, Christian; Gulseth, Hanne Løvdal; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem; Birkeland, Kåre I..
Physiological and symptomatic responses to hypoglycemia in patients with impaired awareness. Meeting of Scand. Soc. for the Study of Diabetes; 2015-04-24 - 2015-04-26
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