Christian Tronstad

Publications

  • Bari, D. S.; Aldosky, H. Y. Y.; Tronstad, Christian; Kalvøy, Håvard & Martinsen, Ørjan Grøttem (2017). Electrodermal responses to discrete stimuli measured by skin conductance, skin potential, and skin susceptance. Skin research and technology.  ISSN 0909-752X.  24(1), s 108- 116 . doi: 10.1111/srt.12397
  • Bruehl, Stephen; Bjørkholt Olsen, Roy; Tronstad, Christian; Sevre, Knut; Burns, John W; Schirmer, Henrik; Nielsen, Christopher Sivert; Stubhaug, Audun & Rosseland, Leiv Arne (2017). Chronic pain-related changes in cardiovascular regulation and impact on comorbid hypertension in a general population: the Tromsø study. Pain.  ISSN 0304-3959.  159(1), s 119- 127 . doi: 10.1097/j.pain.0000000000001070
  • Kalvøy, Håvard; Tronstad, Christian; Ullensvang, Kyrre; Steinfeldt, Thorsten & Sauter, Axel Rudolf (2017). Detection of needle to nerve contact based on electric bioimpedance and machine learning methods. IEEE Engineering in Medicine and Biology Society. Conference Proceedings.  ISSN 1557-170X.  s 9- 12 . doi: 10.1109/EMBC.2017.8036750
  • Pabst, Oliver; Tronstad, Christian; Grimnes, Sverre; Fowles, Don C. & Martinsen, Ørjan Grøttem (2017). Comparison between the AC and DC measurement of electrodermal activity. Psychophysiology.  ISSN 0048-5772.  54(3), s 374- 385 . doi: 10.1111/psyp.12803
  • Pabst, Oliver; Tronstad, Christian & Martinsen, Ørjan Grøttem (2017). Instrumentation, electrode choice and challenges in human skin memristor measurement. IEEE Engineering in Medicine and Biology Society. Conference Proceedings.  ISSN 1557-170X.  s 1844- 1848 . doi: 10.1109/EMBC.2017.8037205
  • Strand-Amundsen, Runar James; Reims, Henrik Mikael; Tronstad, Christian; Kalvøy, Håvard; Martinsen, Ørjan Grøttem; Høgetveit, Jan Olav; Ruud, Tom Erik & Tønnessen, Tor Inge (2017). Ischemic small intestine - In vivo versus ex vivo bioimpedance measurements. Physiological Measurement.  ISSN 0967-3334.  38(5), s 715- 728 . doi: 10.1088/1361-6579/aa67b7
  • Tronstad, Christian; Elvebakk, Ole; Kalvøy, Håvard; Bjørgaas, Marit Ragnhild Rokne & Martinsen, Ørjan Grøttem (2017). Detection of sympathoadrenal discharge by parameterisation of skin conductance and ECG measurement. IEEE Engineering in Medicine and Biology Society. Conference Proceedings.  ISSN 1557-170X.  s 3997- 4000 . doi: 10.1109/EMBC.2017.8037732
  • Nygaard, Kent Inge; Thiara, Amrit Paul Singh; Tronstad, Christian; Ringdal, Mari-Anne I Lindstein & Fiane, Arnt E (2016). VAVD vacuum may cause bubble transgression in membrane oxygenators. Perfusion.  ISSN 0267-6591.  31(8), s 648- 652 . doi: 10.1177/0267659116651345
  • 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 (2016). In vivo characterization of ischemic small intestine using bioimpedance measurements. Physiological Measurement.  ISSN 0967-3334.  37(2), s 257- 275 . doi: 10.1088/0967-3334/37/2/257 Show summary
  • Martinsen, Ørjan Grøttem; Pabst, Oliver; Tronstad, Christian & Grimnes, Sverre (2015). Sources of error in AC measurement of skin conductance. Journal of Electrical Bioimpedance.  ISSN 1891-5469.  6(1), s 49- 53 . doi: 10.5617/jeb.2640
  • Pischke, Søren Erik; Hyler, Stefan; Tronstad, Christian; Bergsland, Jacob; Fosse, Erik; Halvorsen, Per Steinar; Skulstad, Helge & Tønnessen, Tor Inge (2015). Myocardial tissue CO2 tension detects coronary blood flow reduction after coronary artery bypass in real-time. British Journal of Anaesthesia.  ISSN 0007-0912.  114(3), s 414- 422 . doi: 10.1093/bja/aeu381
  • Tronstad, Christian; Omenås, Ivar Nagelgaard & Rosseland, Leiv Arne (2015). An improved artifact removal algorithm for continuous cardiac output and blood pressure recordings. IEEE Engineering in Medicine and Biology Society. Conference Proceedings.  ISSN 1557-170X.  2015-November, s 5968- 5972 . doi: 10.1109/EMBC.2015.7319751
  • Tronstad, Christian; Staal, Odd Martin; Saelid, Steinar & Martinsen, Ørjan Grøttem (2015). Model- based filtering for artifact and noise suppression with state estimation for electrodermal activity measurements in real time. IEEE Engineering in Medicine and Biology Society. Conference Proceedings.  ISSN 1557-170X.  s 2750- 2753 . doi: 10.1109/EMBC.2015.7318961
  • Nordbotten, Bernt Jørgen; Tronstad, Christian; Martinsen, Ørjan Grøttem & Grimnes, Sverre (2014). Estimation of skin conductance at low frequencies using measurements at higher frequencies for EDA applications. Physiological Measurement.  ISSN 0967-3334.  35(6), s 1011- 1018 . doi: 10.1088/0967-3334/35/6/1011
  • Tronstad, Christian; Helsing, Per; Tønseth, Kim Aleksander; Grimnes, Sverre & Polesie, Anne Lene Krogstad (2014). Tumescent suction curettage vs. curettage only for treatment of axillary hyperhidrosis evaluated by subjective and new objective methods. Acta Dermato-Venereologica.  ISSN 0001-5555.  94(2), s 215- 220 . doi: 10.2340/00015555-1671
  • Tronstad, Christian & Pripp, Are Hugo (2014). Statistical methods for bioimpedance analysis. Journal of Electrical Bioimpedance.  ISSN 1891-5469.  5(1), s 14- 27 . doi: 10.5617/jeb.830
  • Tronstad, Christian; Kalvøy, Håvard; Grimnes, Sverre & Martinsen, Ørjan Grøttem (2013). Improved Estimation of Sweating Based on Electrical Properties of Skin. Annals of Biomedical Engineering.  ISSN 0090-6964.  41(5), s 1074- 1083 . doi: 10.1007/s10439-013-0743-4
  • Tronstad, Christian; Kalvøy, Håvard; Grimnes, Sverre & Martinsen, Ørjan Grøttem (2013). Waveform difference between skin conductance and skin potential responses in relation to electrical and evaporative properties of skin. Psychophysiology.  ISSN 0048-5772.  50(11), s 1070- 1078 . doi: 10.1111/psyp.12092
  • Pischke, Søren Erik; Tronstad, Christian; Holhjem, Lars; Halvorsen, Per Steinar & Tønnessen, Tor Inge (2012). Perioperative detection of myocardial ischaemia/reperfusion with a novel tissue CO2 monitoring technology. European Journal of Cardio-Thoracic Surgery.  ISSN 1010-7940.  42(1), s 157- 163 . doi: 10.1093/ejcts/ezr278
  • Pischke, Søren Erik; Tronstad, Christian; Holhjem, Lars; Line, Pål Dag; Haugaa, Håkon & Tønnessen, Tor Inge (2012). Hepatic and Abdominal Carbon Dioxide Measurements Detect and Distinguish Hepatic Artery Occlusion and Portal Vein Occlusion in Pigs. Liver transplantation.  ISSN 1527-6465.  18(12), s 1485- 1494 . doi: 10.1002/lt.23544
  • Grimnes, Sverre; Jabbari, Azar; Martinsen, Ørjan Grøttem & Tronstad, Christian (2011). Electrodermal activity by DC potential and AC conductance measured simultaneously at the same skin site. Skin research and technology.  ISSN 0909-752X.  17(1), s 26- 34 . doi: 10.1111/j.1600-0846.2010.00459.x
  • Nordbotten, Bernt Jørgen; Tronstad, Christian; Martinsen, Ørjan Grøttem & Grimnes, Sverre (2011). Evaluation of algorithms for calculating bioimpedance phase angle values from measured whole-body impedance modulus. Physiological Measurement.  ISSN 0967-3334.  32(7), s 755- 765 . doi: 10.1088/0967-3334/32/7/S03
  • Kalvøy, Håvard; Tronstad, Christian; Nordbotten, Bernt Jørgen; Grimnes, Sverre & Martinsen, Ørjan Grøttem (2010). Electrical Impedance of Stainless Steel Needle Electrodes. Annals of Biomedical Engineering.  ISSN 0090-6964.  38(7), s 2371- 2382 . doi: 10.1007/s10439-010-9989-2
  • Tronstad, Christian; Grimnes, Sverre; Martinsen, Ørjan Grøttem; Amundsen, Vegar & Wojniusz, Slawomir (2010). PC-based instrumentation for electrodermal activity measurement. Journal of Physics, Conference Series.  ISSN 1742-6588.  224 . doi: 10.1088/1742-6596/224/1/012093 Show summary
  • Tronstad, Christian; Johnsen, Gorm Krogh; Grimnes, Sverre & Martinsen, Ørjan Grøttem (2010). A study on electrode gels for skin conductance measurements. Physiological Measurement.  ISSN 0967-3334.  31(10), s 1395- 1410 . doi: 10.1088/0967-3334/31/10/008
  • Tronstad, Christian; Pischke, Søren Erik; Holhjem, L; Tønnessen, Tor Inge; Martinsen, Ørjan Grøttem & Grimnes, Sverre (2010). Early detection of cardiac ischemia using a conductometric pCO(2) sensor: real-time drift correction and parameterization. Physiological Measurement.  ISSN 0967-3334.  31(9), s 1241- 1255 . doi: 10.1088/0967-3334/31/9/013

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  • Kalvøy, Håvard; Sauter, Axel Rudolf; Tronstad, Christian & Martinsen, Ørjan Grøttem (2016). Neural tissue discrimination with machine learning methods. Proceedings of the 16th International Conference on Electrical Bioimpedance.  s 71
  • Pabst, Oliver; Tronstad, Christian; Martinsen, Ørjan Grøttem & Grimnes, Sverre (2016). Comparison between AC and DC exosomatic EDA measuring methods. Proceedings of the 16th International Conference on Electrical Bioimpedance.  s 65
  • Strand-Amundsen, Runar James; Tronstad, Christian; Martinsen, Ørjan Grøttem; Høgetveit, Jan Olav; Ruud, TE & Tønnessen, Tor Inge (2016). Bioimpedance - in vivo vs in vitro ischemic small intestine. Proceedings of the 16th International Conference on Electrical Bioimpedance.  s 53
  • Tronstad, Christian; Elvebakk, Ole; Martinsen, Ørjan Grøttem; Kalvøy, Håvard & Høgetveit, Jan Olav (2016). Bioimpedance for prediction of hypoglycemic trends. Proceedings of the 16th International Conference on Electrical Bioimpedance.
  • Elvebakk, Ole; Tronstad, Christian; Gulseth, Hanne Løvdal; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem & Birkeland, Kåre I. (2015). Physiological and symptomatic responses to hypoglycemia in patients with impaired awareness.
  • Tronstad, Christian; Staal, Odd Martin; Sælid, Steinar & Martinsen, Ørjan Grøttem (2015). Model-based filtering for artifact and noise suppression with state estimation for electrodermal activity measurements in real time.
  • Elvebakk, Ole; Tronstad, Christian; Høgetveit, Jan Olav; Jenssen, Trond Geir; Bjørgaas, Marit & Martinsen, Ørjan Grøttem (2013). Sweating reactions due to hypoglycemia detected by skin AC conductance.
  • Kalvøy, Håvard; Tronstad, Christian; Grimnes, Sverre & Martinsen, Ørjan Grøttem (2013). Simultaneous measurement of DC potential and AC conductance to monitor electrodermal activity at a single electrode.
  • Nordbotten, Bernt Jørgen; Tronstad, Christian; Martinsen, Ørjan Grøttem & Grimnes, Sverre (2013). Estimation of skin conductance at low frequencies from measurements at higher frequencies for EDA application.
  • Tronstad, Christian; Elvebakk, Ole; Høgetveit, Jan Olav; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne & Martinsen, Ørjan Grøttem (2013). Monitoring of sweat activity for detection of severe hypoglycemia – A pilot study.
  • Tronstad, Christian; Kalvøy, Håvard; Grimnes, Sverre & Martinsen, Ørjan Grøttem (2013). Sweat production estimated by bioimpedance and bioelectrical signals.
  • Kvaløy, Håvard; Tronstad, Christian; Grimnes, Sverre & Martinsen, Ørjan Grøttem (2012). Electrodermal activity measured as DC potential and AC conductance at the same electrode. International Federation for Medical and Biological Engineering Proceedings.  ISSN 1680-0737.  39
  • Tronstad, Christian (2012). Developments in biomedical sensors based on electrical impedance- Improvements in electrodes, instrumentation and signal processing technology for new and existing biomedical sensors for clinical use.
  • Tronstad, Christian; Kvaløy, Håvard; Martinsen, Ørjan Grøttem & Grimnes, Sverre (2012). New parameters of electrodermal activity and estimation of sweat production. International Federation for Medical and Biological Engineering Proceedings.  ISSN 1680-0737.  39

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Published Dec. 6, 2011 1:08 PM - Last modified Sep. 10, 2012 12:51 PM