Blar i Bergen Open Research Archive på forfatter "Kristoffersen, Per M"

Viser treff 1-5 av 5

    • Apparent diffusion coefficient values in Modic changes – interobserver reproducibility and relation to Modic type 

      Dagestad, Magnhild Hammersland; Vetti, Nils; Kristoffersen, Per M; Zwart, John Anker Henrik; Storheim, Kjersti; Bakland, Gunnstein; Brox, Jens Ivar; Grøvle, Lars; Marchand, Gunn Hege; Andersen, Erling; Assmus, Jörg; Espeland, Ansgar (Journal article; Peer reviewed, 2022)
      Background Modic Changes (MCs) in the vertebral bone marrow were related to back pain in some studies but have uncertain clinical relevance. Diffusion weighted MRI with apparent diffusion coefficient (ADC)-measurements ...

    • Dixon T2 imaging of vertebral bone edema: reliability and comparison with short tau inversion recovery 

      Dagestad, Magnhild Hammersland; Toppe, Monika Kolskår; Kristoffersen, Per M; Gjefsen, Elisabeth; Andersen, Erling; Assmus, Jörg; Vetti, Nils; Espeland, Ansgar (Journal article; Peer reviewed, 2022)
      Background It is uncertain whether T2-weighted Dixon water images (DixonT2w) and short tau inversion recovery (STIR) are interchangeable when evaluating vertebral bone edema, or if one method is superior or visualizes the ...

    • Efficacy of antibiotic treatment in patients with chronic low back pain and Modic changes (the AIM study): double blind, randomised, placebo controlled, multicentre trial 

      Bråten, Lars Christian Haugli; Rolfsen, Mads Peder; Espeland, Ansgar; Wigemyr, Monica; Assmus, Jörg; Froholdt, Anne; Haugen, Anne Julsrud; Marchand, Gunn Hege; Kristoffersen, Per M; Lutro, Olav; Randen, Sigrun; Wilhelmsen, Maja; Winsvold, Bendik K S; Kadar, Thomas; Holmgard, Thor Einar; Vigeland, Maria Dehli; Vetti, Nils; Nygaard, Øystein Petter; Lie, Benedicte Alexandra; Hellum, Christian; Anke, Audny; Grotle, Margreth; Schistad, Ellina Iordanova; Skouen, Jan Sture; Grøvle, Lars; Brox, Jens Ivar; Zwart, John-Anker; Storheim, Kjersti (Peer reviewed; Journal article, 2019)
      Objective To assess the efficacy of three months of antibiotic treatment compared with placebo in patients with chronic low back pain, previous disc herniation, and vertebral endplate changes (Modic changes). Design Double ...

    • Oedema on STIR modified the effect of amoxicillin as treatment for chronic low back pain with Modic changes—subgroup analysis of a randomized trial 

      Kristoffersen, Per M; Bråten, Lars Christian Haugli; Vetti, Nils; Grøvle, Lars; Hellum, Christian; Storheim, Kjersti; Zwart, John-Anker; Assmus, Jörg; Espeland, Ansgar (Journal article; Peer reviewed, 2021)
      Objective To evaluate potential MRI-defined effect modifiers of amoxicillin treatment in patients with chronic low back pain and type 1 or 2 Modic changes (MCs) at the level of a previous lumbar disc herniation (index ...

    • Short tau inversion recovery MRI of Modic changes: a reliability study 

      Kristoffersen, Per M; Vetti, Nils; Storheim, Kjersti; Bråten, Lars Christian Haugli; Rolfsen, Mads Peder; Assmus, Jörg; Espeland, Ansgar (Journal article; Peer reviewed, 2020)
      Background Limited reliability data exist for evaluation of spinal edema changes on magnetic resonance imaging (MRI) with short tau inversion recovery (STIR) sequences. Purpose To assess the inter-observer reliability ...