Browsing NTNU Open by Author "Johansen, Håkon"

Now showing items 1-12 of 12

    • 18F-FACBC PET/MRI in diagnostic assessment and neurosurgery of gliomas 

      Karlberg, Anna Maria; Berntsen, Erik Magnus; Johansen, Håkon; Skjulsvik, Anne Jarstein; Reinertsen, Ingerid; Hong, Yan Dai; Xiao, Yiming; Rivaz, Hassan; Borghammer, Per; Solheim, Ole; Eikenes, Live (Journal article; Peer reviewed, 2019)
      Purpose This pilot study aimed to evaluate the amino acid tracer 18F-FACBC with simultaneous PET/MRI in diagnostic assessment and neurosurgery of gliomas. Materials and Methods Eleven patients with suspected primary or ...

    • 18F-FACBC PET/MRI in the evaluation of human brain metastases: a case report 

      Johannessen, Knut; Berntsen, Erik Magnus; Johansen, Håkon; Solheim, Tora S; Karlberg, Anna Maria; Eikenes, Live (Peer reviewed; Journal article, 2021)
      Abstract Background: Patients with metastatic cancer to the brain have a poor prognosis. In clinical practice, MRI is used to delineate, diagnose and plan treatment of brain metastases. However, MRI alone is limited in ...

    • Associations between detectable circulating tumor DNA and tumor glucose uptake measured by 18F-FDG PET/CT in early-stage non-small cell lung cancer 

      Ottestad, Anine Larsen; Johansen, Håkon; Halvorsen, Tarje Onsøien; Dai, Hong Yan; Wahl, Sissel Gyrid Freim; Emdal, Elisabeth Fritzke; Grønberg, Bjørn Henning (Peer reviewed; Journal article, 2023)
      Background The low level of circulating tumor DNA (ctDNA) in the blood is a well-known challenge for the application of liquid biopsies in early-stage non-small cell lung cancer (NSCLC) management. Studies of metastatic ...

    • A comparison of FDG PET/MR and PET/CT for staging, response assessment, and prognostic imaging biomarkers in lymphoma 

      Husby, Trine; Johansen, Håkon; Bogsrud, Trond; Hustad, Kari Vekseth; Evensen, Birte Veslemøy; Boellard, Ronald; Giskeødegård, Guro F.; Fagerli, Unn-Merete; Eikenes, Live (Peer reviewed; Journal article, 2022)
      The aim of the current study was to investigate the diagnostic performance of FDG PET/MR compared to PET/CT in a patient cohort including Hodgkins lymphoma, diffuse large B-cell lymphoma, and high-grade B-cell lymphoma at ...

    • Detection of recurrent prostate cancer with 18F-Fluciclovine PET/MRI 

      Selnæs, Kirsten Margrete; Krüger-Stokke, Brage; Elschot, Mattijs; Johansen, Håkon; Steen, Per Arvid; Langørgen, Sverre; Aksnessæther, Bjørg Yksnøy; Indrebø, Gunnar; Sjøbakk, Torill Eidhammer; Tessem, May-Britt; Moestue, Siver Andreas; Knobel, Heidi; Tandstad, Torgrim; Bertilsson, Helena; Solberg, Arne; Bathen, Tone Frost (Peer reviewed; Journal article, 2020)
      Objective: Simultaneous PET/MRI combines soft-tissue contrast of MRI with high molecular sensitivity of PET in one session. The aim of this prospective study was to evaluate detection rates of recurrent prostate cancer by ...

    • Diagnostic accuracy of anti-3-[18F]-FACBC PET/MRI in gliomas 

      Karlberg, Anna Maria; Pedersen, Lars Kjelsberg; Vindstad, Benedikte Emilie; Skjulsvik, Anne Jarstein; Johansen, Håkon; Solheim, Ole Skeidsvoll; Skogen, Karoline; Kvistad, Kjell Arne; Bogsrud, Trond; Myrmel, Kristin Smistad; Giskeødegård, Guro F.; Ingebrigtsen, Tor; Berntsen, Erik Magnus; Eikenes, Live (Peer reviewed; Journal article, 2023)
      Purpose - The primary aim was to evaluate whether anti-3-[18F]FACBC PET combined with conventional MRI correlated better with histomolecular diagnosis (reference standard) than MRI alone in glioma diagnostics. The ability ...

    • 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 ...

    • Multimodal 18F-Fluciclovine PET/MRI and Ultrasound-Guided Neurosurgery of an Anaplastic Oligodendroglioma 

      Karlberg, Anna Maria; Berntsen, Erik Magnus; Johansen, Håkon; Myrthue, Mariane Olesen; Skjulsvik, Anne Jarstein; Reinertsen, Ingerid; Esmaeili, Morteza; Dai, Hong Yan; Xiao, Yiming; Rivaz, Hassan; Borghammer, Per; Solheim, Ole; Eikenes, Live (Journal article; Peer reviewed, 2017)
      Background Structural magnetic resonance imaging (MRI) and histopathologic tissue sampling are routinely performed as part of the diagnostic workup for patients with glioma. Because of the heterogeneous nature of gliomas, ...

    • Prognostic value of combined MTV and ADC derived from baseline FDG PET/MRI in aggressive non-Hodgkins lymphoma 

      Husby, Trine; Johansen, Håkon; Bogsrud, Trond; Hustad, Kari Vekseth; Evensen, Birte Veslemøy; Boellaard, Ronald; Giskeødegård, Guro F.; Fagerli, Unn-Merete; Eikenes, Live (Peer reviewed; Journal article, 2022)
      Purpose The aim of this prospective study was to investigate the prognostic value of metabolic tumor volume (MTV) and apparent diffusion coefficient (ADC) from baseline FDG PET/MRI compared to established clinical risk ...

    • Prostate-Specific Membrane Antigen PET/Magnetic Resonance Imaging for the Planning of Salvage Radiotherapy in Patients with Prostate Cancer with Biochemical Recurrence After Radical Prostatectomy 

      Elschot, Mattijs; Selnæs, Kirsten Margrete; Langørgen, Sverre; Johansen, Håkon; Bertilsson, Helena; Tandstad, Torgrim; Bathen, Tone Frost (Journal article; Peer reviewed, 2019)
      Prostate-specific membrane antigen (PSMA) PET/magnetic resonance (MR) imaging can help distinguish between patients with prostate cancer with locoregional recurrence and those with distant metastases, even at low ...

    • Safety Performance in The Maintenance, Repair, Alteration and Addition (RMAA) Sector of The Construction Industry 

      Johansen, Håkon (Master thesis, 2020)
      Mellom 2014 og 2018 rapportert den Norske bygge- og anleggsnæringen den fjerde høyeste ulykkesraten for alvorlige arbeidsulykker, og nest flest alvorlige arbeidsulykker totalt, av 14 industrier klassifisert av Statistisk ...

    • The Effect of Including Bone in DIXON-based Attenuation Correction for 18F-fluciclovine PET/MRI of Prostate Cancer 

      Elschot, Mattijs; Selnæs, Kirsten Margrete; Johansen, Håkon; Krüger-Stokke, Brage; Bertilsson, Helena; Bathen, Tone Frost (Journal article; Peer reviewed, 2018)
      The objective of this study was to evaluate the effect of including bone in DIXON-based attenuation correction for 18F-fluciclovine Positron Emission Tomography (PET) / Magnetic Resonance Imaging (MRI) of primary and ...