• Electrosurgery and temperature increase in tissue with a passive metal implant 

      Martinsen, Tormod; Pettersen, Fred-Johan; Kalvøy, Håvard; Tronstad, Christian; Kvarstein, Gunnvald; Bakken, André; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem; Grimnes, Sverre; Frich, Lars Inge (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-12)
      <i>Importance</i>: During monopolar electrosurgery in patients, current paths can be influenced by metal implants, which can cause unintentional tissue heating in proximity to implants. Guidelines concerning electrosurgery and active implants such as pacemakers or implantable cardioverter defibrillators have been published, but most describe interference between electrosurgery and the active implant ...
    • A multiparameter model for non-invasive detection of hypoglycemia 

      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 (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-02)
      <i>Objective</i>: Severe hypoglycemia is the most serious acute complication for people with type 1 diabetes (T1D). Approximately 25% of people with T1D have impaired ability to recognize impending hypoglycemia, and nocturnal episodes are feared.<p> <p><i>Approach</i>: We have investigated the use of non-invasive sensors for detection of hypoglycemia based on a mathematical model which combines ...