Bilde av Mercer, James
Photo: knut steiness
Bilde av Mercer, James
Department of Medical Biology james.mercer@uit.no Tromsø

Mercer, James


Professor emeritus

Job description

Full time professor at the Cardiovascular research Group, Faculty of health sciences

In addition, Professor Mercer has a part time position at the Department of Radiology, The University Hospital of Northern Norway, Tromsø, Norway


  • Arne Johan Norheim, Bård Stian Rannestad, Richard Howes, Erling Bekkestad Rein, Ellen Jørum, Karl Friedl et al.:
    Abstracts from The Cold Weather Operations Conference 2021
    International Journal of Circumpolar Health 2022 ARKIV / DOI
  • Didrik Esperland, Louis de Weerd, James Mercer :
    Health effects of voluntary exposure to cold water–a continuing subject of debate
    International Journal of Circumpolar Health 2022 DOI
  • Mathieu Mouhat, Lina Stangvaltaite-Mouhat, James Mercer, Bo Wold Nilsen, Ulf Örtengren :
    Light-curing units used in dentistry: Effect of their characteristics on temperature development in teeth
    Dental materials journal 2021 ARKIV / DOI
  • Muiz Akram Chaudhry, James Mercer, Louis de Weerd :
    In vivo perforasome perfusion in hemi-DIEP flaps evaluated with indocyanine-green fluorescence angiography and infrared thermography
    Plastic and reconstructive surgery. Global open 2021 ARKIV / DOI
  • Solveig Nergård, James Mercer, Louis de Weerd :
    Impact on Abdominal Skin Perfusion following Abdominoplasty
    Plastic and reconstructive surgery. Global open 2021 ARKIV / DOI
  • Louis de Weerd, James Mercer, Sven Weum :
    Static Versus Dynamic Infrared Thermography in Perforator Mapping
    Annals of Plastic Surgery 01. June 2021 DOI
  • Thomas K. Sjöberg, James Mercer, Sven Weum, Louis de Weerd :
    The value of dynamic infrared thermography in pedicled thoracodorsal artery perforator flap surgery
    Plastic and reconstructive surgery. Global open 15. July 2020 ARKIV / DOI
  • Bo Wold Nilsen, Mathieu Mouhat, Torbjørn Haukland, Ulf Thore Ørtengren, James Mercer :
    Heat Development in the Pulp Chamber During Curing Process of Resin-Based Composite Using Multi-Wave LED Light Curing Unit
    Clinical, Cosmetic and Investigational Dentistry 2020 ARKIV / DOI
  • Arne Johan Norheim, Einar Kristian Borud, Tom Wilsgaard, Louis de Weerd, James Mercer :
    Variability in peripheral rewarming after cold stress among 255 healthy Norwegian army conscripts assessed by dynamic infrared thermography
    International Journal of Circumpolar Health 2018 ARKIV / SAMMENDRAG / FULLTEKST / DOI
  • Solveig Nergård, James Mercer, Louis de Weerd :
    Perfusion dynamics in abdominal skin after free abdominal flap breast reconstruction using internal mammary vessels as recipient vessels. A clinical study using Dynamic Infrared Thermography
    Thermology International 2018 ARKIV / SAMMENDRAG / DOI
  • Arne Johan Norheim, James Mercer, Frauke Musial, Louis de Weerd :
    A new treatment for frostbite sequelae; Botulinum toxin
    International Journal of Circumpolar Health 19. January 2017 ARKIV / DOI
  • Solveig Nergård, James Mercer, Louis de Weerd :
    Internal Mammary Vessels’ Impact on Abdominal Skin Perfusion in Free Abdominal Flap Breast Reconstruction
    Plastic and reconstructive surgery. Global open 2017 DOI
  • Sven Weum, James Mercer, Louis de Weerd :
    Evaluation of dynamic infrared thermography as an alternative to CT angiography for perforator mapping in breast reconstruction: A clinical study
    BMC Medical Imaging 2016 ARKIV / DOI
  • Mathieu Mouhat, James Mercer, Lina Stangvaltaite, Ulf Thore Ørtengren :
    Light-curing units used in dentistry: factors associated with heat development – potential risk for patients
    Clinical Oral Investigations 2016 ARKIV / FULLTEKST / DOI
  • Gerd Hoffmann, M Hartel, James Mercer :
    Heat for wounds - water filtered infrared-A for wound healing- a review.
    German Medical Science 2016 ARKIV / DOI
  • Gerd Hoffmann, Mark Harte, James Mercer :
    Heat for wounds – water-filtered infrared-A (wIRA) for wound healing – a review [Wärme für Wunden – Wassergefiltertes Infrarot A (wIRA) für die Wundheilung – Eine Übersicht]
    German Medical Science 2016
  • Dennis Dam Soerensen, Sønnik Clausen, James Mercer, Lene Juul Pedersen :
    Determining the emissivity of pig skin for accurate infrared thermography
    Computers and Electronics in Agriculture 2014 DOI
  • Nina Rones, Hilde Kristin Teien, Kristine Gulliksrud, James Mercer, Arne Johan Norheim :
    Nedkjøling og gjenoppvarming av hender hos soldater i førstegangstjeneste – analyser av data fra en standardisert kuldeprovokasjonstest
    2022
  • Muiz Akram Chaudhry, James Mercer, Louis de Weerd :
    Evaluating the perfusion patterns of selected perforators in a hemi-DIEP flap with dynamic infrared thermography and indocyanine green fluorescence angiography
    2021
  • Muiz Akram Chaudhry, James Mercer, Louis de Weerd :
    The effect of perforator dissection on perfusion pattern in a hemi-DIEP flap evaluated with dynamic infrared thermography and indocyanine green fluorescence angiography.
    2020
  • Muiz Akram Chaudhry, James Mercer, Louis de Weerd :
    Dynamic infrared thermography in combination with indocyanine green fluorescence angiography for evaluating perfusion in a vascularized DIEP flap- detection of early warning signs.
    2020
  • Solveig Nergård, James Mercer, Louis de Weerd :
    Free abdominal flap breast reconstruction using internal mammary vessels as recipient vessels. A clinical study investigating perfusion dynamics in abdominal skin using Dynamic Infrared Thermography.
    2019
  • Solveig Nergård, James Mercer, Louis de Weerd :
    Free abdominal flap breast reconstruction using internal mammary vessels as reciepeint vessels. A clinical study investigating perfusion dynamics in abdominal skin using Dynamic Infrared Thermography.
    2019
  • Muiz Akram Chaudhry, Sven Weum, James Mercer, Louis de Weerd :
    Multimodal approach for evaluating perfusion dynamics in isolated hemi-DIEP-flaps.
    2019
  • Muiz Akram Chaudhry, Sven Weum, James Mercer, Louis de Weerd :
    Multimodal tilnærming til evaluering av perfusjonsdynamikk i isolerte hemi-DIEP lapper- preliminære resultater
    2019
  • Muiz Akram Chaudhry, Thomas K. Sjöberg, Sven Weum, James Mercer, Louis de Weerd :
    Kombinasjon av indocyaningrønn fluorescensangiografi og dynamisk infrarød thermografi til å påvise intraoperative faresignaler i den mikrovaskulariserte DIEP-lapper
    2019
  • Muiz Akram Chaudhry, Thomas K. Sjöberg, Sven Weum, James Mercer, Louis de Weerd :
    Effekt av perforatordisseksjon på perfusjonsmønsteret i hemi-DIEP lapper evaluert med dynamisk infrarød thermografi og indocyaningrønn fluorescensangiografi
    2019
  • Solveig Nergård, James Mercer, Louis de Weerd :
    Hudperfusjon etter bukplastikk
    2019
  • James Mercer, Thomas Sjøberg, Sven Weum, Louis DeWeerd, Muiz Akram Chaudhry :
    Perfusion patterns of periumbilical and lateral row perforators of the lower abdomen evaluated with dynamic infrared thermography (DIRT) and indocyanine green (ICG) fluorescence angiography
    2018
  • James Mercer, Muiz Akram Chaudhry, Thomas Sjøberg, Sven Weum, Louis DeWeerd :
    Perfusion patterns of periumbilical and lateral row perforators of the lower abdomen evaluated with dynamic infrared thermography (DIRT) and indocyanine green (ICG) fluorescence angiography
    Thermology International 2018
  • Solveig Nergård, James Mercer, Louis DeWeerd :
    Internal mammary vessels impact on abdominal skin perfusion in free abdominal flap breast reconstruction, final result.
    2018
  • Arne Johan Norheim, Einar Kristian Borud, Tom Wilsgård, Louis DeWeerd, James Mercer :
    Variability in peripheral rewarming after cold stress among 255 healthy Norwegian army conscripts assessed by dynamic infrared thermography.
    Thermology International 2018
  • Arne Johan Norheim, Einar Kristian Borud, Tom Wilsgård, Louis DeWeerd, James Mercer :
    Variability in peripheral rewarming after cold stress among 255 healthy Norwegian army conscripts assessed by dynamic infrared thermography.
    2018
  • Muiz Akram Chaudhry, Thomas K. Sjöberg, Sven Weum, James Mercer, Louis de Weerd :
    Perforatorkartlegging ved bruk av ultralyd, CTangiografi, dynamisk infrarød thermografi og ICG fluorecensangiografi- en komparativ studie
    2018
  • Louis de Weerd, Thomas K. Sjøberg, James Mercer, Sven Weum :
    The perfusion code of DIEP and ms-TRAM flaps is a hard nut to crack
    Journal of Plastic, Reconstructive & Aesthetic Surgery 2017 DOI
  • Mathieu Mouhat, Lina Stangvaltaite, James Mercer, Ulf Õrtengren :
    Comparison of temperature development in teeth using different LED Light Curing Units
    2017
  • Mathieu Mouhat, James Mercer, Magnus Hakeberg, Ulf Tore Örtengren :
    Light curing devices used in dentistry – heat development – a risk for patients?
    2016
  • Terje Tverås, James Mercer, Arne Johan Norheim, Louis de Weerd :
    Gir kuldeforskerne en håndsrekning
    15. January 2015
  • Malin Myrbakken, James Mercer, Arne Johan Norheim, Louis de Weerd :
    Skaper internasjonal intresse - Bruker Setermoensoldater til forskning av frostskader
    10. January 2015
  • Jorun Gaarder, James Mercer :
    8 myter og sannheter om kroppstemperatur (Dagbladet)
    22. April 2015
  • Mathieu Mouhat, James Mercer, Magnus Hakeberg, Ulf Thore Ørtengren :
    LED curing devices –Temperature distribution on natural teeth correlated to intensity and distances
    2015
  • Selenia Ternullo, Louis de Weerd, James Mercer, Gøril Eide Flaten, Ann Mari Holsæter, Natasa Skalko-Basnet :
    Isolated perfused human skin flap model: Innovative approach to improve skin therapy
    2015
  • Arne Johan Norheim, Einar Kristian Borud, Thomas Sagen, D Helle, James Mercer, Louis DeWeerd :
    “Normal” thermography among 122 soldiers in the Norwegian armed forces
    2015
  • James Mercer, Louis de Weerd, Thomas A. Sjøberg :
    Pre-, intra- and postoperative use of dynamic infrared thermography (DIRT) in breast reconstruction using a fascio-cutaneous pedicled perforator flap
    2015
  • Mathieu Mouhat, James Mercer, Ulf Thore Ørtengren :
    Temperature distribution on natural teeth subjected to light curing with different LED curing devices –preliminary results. Oral presentation.
    2015
  • Louis de Weerd, Sven Weum, James Mercer :
    Detection of perforators using thermal imaging
    Plastic and Reconstructive Surgery 2014 DOI
  • James Mercer, Louis DeWeerd :
    Thermography and Thermal Symmetry
    2014
  • Elisabeth Øvreberg, James Mercer :
    Er det sant at man kan få kuldeskader i varmegrader?
    19. November 2014
  • Astrid Øvre Helland, James Mercer :
    Dette gjør snusen med hendene dine
    18. June 2014
  • Nett VG, James Mercer :
    Fysiolog: Husløse bør få tak over hodet ved 10 plussgrader
    02. February 2014

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    Research interests

    General Interests: General and comparative aspects of thermal physiology in man and animals, including birds with main emphasis on cold temperature physiology. Cardiovascular disease, cold climate and winter mortality. Natural age related and pathophysiological aspects of peripheral circulation, medical Thermography in clinical and experimental research (main focus at present).

    Key words: Integrative physiology, thermal physiology, regulation of body temperature, cold tolerance, shivering, peripheral circulation, thermal responsiveness, epidemiology of cardiovascular disease and its connection to climate, indoor climate & housing, cold exposure, peripheral vascular disease, medical thermography

    Medical Thermography

    Since the start of 2001 I have been leading a small research group in the field of Medical Thermography (infrared thermal imaging).  At the Department of Radiology, University Hospital North Norway (UNN), we have a dedicated medicalthermography. We have collaborative projects with several different departments at UNN. This laboratory is the first of its kind in Norway. The Department of Radiology UNN has financed the expertise we needed to couple the infrared camera software system to the hospitals image and retrival (IMPAX) system. The system also allows medical personnel the possibility of ordering a thermographic examination for patients electronically, just as they can order an x-ray, CT, MRI etc. Processed images are then stored on the IMPAX system. Our laboratory at UNN is the most sophisticated of its kind in Scandinavia for thermographic examinations.