Blar i Publikasjoner fra CRIStin - NTNU på forfatter "Øen, Silje Kjærnes"

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    • AI-driven attenuation correction for brain PET/MRI: Clinical evaluation of a dementia cohort and importance of the training group size 

      Ladefoged, Claes Nøhr; Hansen, Adam Espe; Henriksen, Otto Mølby; Bruun, Frederik Jager; Eikenes, Live; Øen, Silje Kjærnes; Karlberg, Anna Maria; Højgaard, Liselotte; Law, Ian; Andersen, Flemming Littrup (Peer reviewed; Journal article, 2020)
      Introduction Robust and reliable attenuation correction (AC) is a prerequisite for accurate quantification of activity concentration. In combined PET/MRI, AC is challenged by the lack of bone signal in the MRI from which ...

    • Diagnostic Value of 18F-FACBC PET/MRI in Brain Metastases 

      Øen, Silje Kjærnes; Johannessen, Knut; Pedersen, Lars Kjelsberg; Berntsen, Erik Magnus; Totland, Jon Andre; Johansen, Håkon; Bogsrud, Trond Velde; Solheim, Tora S; Karlberg, Anna Maria; Eikenes, Live (Peer reviewed; Journal article, 2022)
      Purpose The study aims to evaluate whether combined 18F-FACBC PET/MRI could provide additional diagnostic information compared with MRI alone in brain metastases. Patients and Methods Eighteen patients with newly ...

    • Image Quality and Detectability in Siemens Biograph PET/MRI and PET/CT Systems - A Phantom study 

      Øen, Silje Kjærnes; Aasheim, Lars Birger; Eikenes, Live; Karlberg, Anna Maria (Journal article; Peer reviewed, 2019)
      Background The technology of modern positron emission tomography (PET) systems continuously improving, and with it the possibility to detect smaller lesions. Since first introduced in 2010, the number of hybrid PET/magnetic ...

    • Quantitative and clinical impact of MRI-based attenuation correction methods in[18F]FDG evaluation of dementia 

      Øen, Silje Kjærnes; Keil, Thomas; Berntsen, Erik Magnus; Aanerud, Joel Fredrik; Schwarzlmüller, Thomas; Ladefoged, Claes Nøhr; Karlberg, Anna Maria; Eikenes, Live (Journal article; Peer reviewed, 2019)
      Background Positron emission tomography/magnetic resonance imaging (PET/MRI) is a promising diagnostic imaging tool for the diagnosis of dementia, as PET can add complementary information to the routine imaging examination ...

    • Quantitative PET/MR imaging of lung cancer in the presence of artifacts in the MR-based attenuation correction maps 

      Kuttner, Samuel; Lassen, Martin Lyngby; Øen, Silje Kjærnes; Sundset, Rune; Beyer, Thomas; Eikenes, Live (Journal article; Peer reviewed, 2019)
      Background Positron emission tomography (PET)/magnetic resonance (MR) imaging may become increasingly important for assessing tumor therapy response. A prerequisite for quantitative PET/MR imaging is reliable and repeatable ...

    • Unsupervised supervoxel-based lung tumor segmentation across patient scans in hybrid PET/MRI 

      Hansen, Stine; Kuttner, Samuel; Kampffmeyer, Michael; Markussen, Tom-Vegard; Sundset, Rune; Øen, Silje Kjærnes; Eikenes, Live; Jenssen, Robert (Peer reviewed; Journal article, 2020)
      Tumor segmentation is a crucial but difficult task in treatment planning and follow-up of cancerous patients. The challenge of automating the tumor segmentation has recently received a lot of attention, but the potential ...