Browsing Institutt for sirkulasjon og bildediagnostikk by Title

Now showing items 1-20 of 1943

    • 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 ...

    • 18F-Fluciclovine PET/MRI for preoperative lymph node staging in high-risk prostate cancer patients 

      Selnæs, Kirsten Margrete; Krüger-Stokke, Brage; Elschot, Mattijs; Willoch, Frode; Størkersen, Øystein; Sandsmark, Elise; Moestue, Siver Andreas; Tessem, May-Britt; Halvorsen, Dag; Kjøbli, Eirik; Angelsen, Anders; Langørgen, Sverre; Bertilsson, Helena; Bathen, Tone Frost (Journal article; Peer reviewed, 2018)
      Objective To investigate the diagnostic potential of simultaneous 18F-fluciclovine PET/MRI for pelvic lymph node (LN) staging in patients with high-risk prostate cancer. Methods High-risk prostate cancer patients (n=28) ...

    • 2-hydroxyglutarate as a magnetic resonance biomarker for glioma subtyping 

      Esmaeili, Morteza; Vettukattil, Riyas M; Bathen, Tone Frost (Journal article; Peer reviewed, 2013)
      Mutations in the isocitrate dehydrogenase (IDH) genes are frequently found in gliomas and in a fraction of acute myeloid leukemia patients. This results in the production of an oncometabolite, 2-hydroxyglutarate (2-HG). ...

    • 2019 EACTS/EACTA/EBCP guidelines on cardiopulmonary bypass in adult cardiac surgery. 

      Wahba, Alexander; Milojevic, Milan; Boer, Christa; De Somer, Filip M.J.J.; Gudbjartsson, Tomas; van den Goor, Jenny; Jones, Timothy J.; Lomivorotov, Vladimir; Merkle, Frank; Ranucci, Marco; Kunst, Gudrun; Puis, Luc (Peer reviewed; Journal article, 2019)

    • 2D and 3D echocardiography during inotropic alterations and after recent myocardial infarction 

      Thorstensen, Anders (Doktoravhandlinger ved NTNU, 1503-8181; 2012:378, Doctoral thesis, 2012)
      Vurdering av venstre ventrikkels størrelse og funksjon er helt sentral ved enhver ekkokardiografisk undersøkelse og den vanligste kliniske indikasjon for å utføre ultralyd av hjertet. I dette prosjektet ble hjertefunksjonen ...

    • 3-D Doppler imaging in cardiac applications using high frame-rate sequences 

      Fiorentini, Stefano (Doctoral theses at NTNU;2020:60, Doctoral thesis, 2020)
      Several decades after the establishment of Doppler ultrasound, quantification and imaging of blood flow using Doppler-based techniques continue to face multiple challenges. Out-of-plane flow, transit-time broadening and ...

    • 3D Myocardial Mechanical Wave Measurements: Toward In Vivo 3D Myocardial Elasticity Mapping 

      Salles, Sebastien; Espeland, Torvald; Rodriguez-Molares, Alfonso; Aase, Svein Arne; Hammer, Tommy; Støylen, Asbjørn; Aakhus, Svend; Løvstakken, Lasse; Torp, Hans (Peer reviewed; Journal article, 2020)
      Objectives This study aimed to investigate the potential of a novel 3-dimensional (3D) mechanical wave velocity mapping technique, based on the natural mechanical waves produced by the heart itself, to approach a noninvasive ...

    • 3D ultrasound and navigation – Applications in laparoscopic surgery 

      Solberg, Ole Vegard (Doktoravhandlinger ved NTNU, 1503-8181; 2011:52, Doctoral thesis, 2011)
      The use of intraoperative navigation during surgery is becoming a valuable tool in several clinical applications. Often only preoperative images are used during navigation and changes that occur during surgery are hence ...

    • 3D Ultrasound for Quantitative Echocardiography 

      Hergum, Torbjørn (Doctoral Theses at NTNU, 1503-8181; 2009:135, Doctoral thesis, 2009)
      Medical ultrasound imaging is widely used to diagnose cardiacdiseases. The recent availability of real time 3D ultrasound posesseveral interesting challenges and opportunities, and the work of thisthesis is devoted to both ...

    • 3D ultrasound reconstruction algorithms from analog and digital data 

      Solberg, Ole Vegard; Lindseth, Frank; Bø, Lars Eirik; Muller, Sebastien; Meland, Janne Beate Lervik; Tangen, Geir Arne; Hernes, Toril A. Nagelhus (Journal article; Peer reviewed, 2010)
      Freehand 3D ultrasound is increasingly being introduced in the clinic for diagnostics and image-assisted interventions. Various algorithms exist for combining 2D images of regular ultrasound probes to 3D volumes, being ...

    • 4D ultrasound vector flow imaging for intraventricular flow assessment 

      Wigen, Morten Smedsrud (Doctoral theses at NTNU;2019:38, Doctoral thesis, 2019)
      4D ultralyd vector flow avbildning for evaluering av blodstrøm i hjertet Ultralyd er den mest utbredte modaliteten for evaluering av hjertefunksjon grunnet tilgjengelighet, lav kostnad og sanntidsvisning. Ekkokardiografi ...

    • 5 Years of Exercise Intervention Did Not Benefit Cognition Compared to the Physical Activity Guidelines in Older Adults, but Higher Cardiorespiratory Fitness Did. A Generation 100 Substudy 

      Sokołowski, Daniel; Hansen, Tor Ivar; Rise, Henning Hoel; Reitlo, Line Skarsem; Wisløff, Ulrik; Stensvold, Dorthe; Håberg, Asta (Peer reviewed; Journal article, 2021)
      Background: Aerobic exercise is proposed to attenuate cognitive decline in aging. We investigated the effect of different aerobic exercise interventions and cardiorespiratory fitness (CRF) upon cognition throughout a 5-year ...

    • A 95 year-old suffering circulatory arrest after accidental hypothermia: A case report 

      Carlsen, Anders Wetting; Winnerkvist, Anders; Greiff, Guri (Journal article; Peer reviewed, 2017)
      Background The elderly are vulnerable to cold and prone to accidental hypothermia, both because of environmental and endogenous factors. The incidence of severe accidental hypothermia among the elderly is poorly described, ...

    • A balanced tissue composition reveals new metabolic and gene expression markers in prostate cancer 

      Tessem, May-Britt; Bertilsson, Helena; Angelsen, Anders; Bathen, Tone Frost; Drabløs, Finn Sverre; Rye, Morten Beck (Journal article; Peer reviewed, 2016)
      Molecular analysis of patient tissue samples is essential to characterize the in vivo variability in human cancers which are not accessible in cell-lines or animal models. This applies particularly to studies of tumor ...

    • A complete national cohort study of prescriptions of analgesics and benzodiazepines to cancer survivors in Norway 10 years after diagnosis 

      Fredheim, Olav Magnus; Skurtveit, Svetlana; Handal, Marte; Hjellvik, Vidar (Journal article; Peer reviewed, 2019)
      Chronic pain due to surgery, radiotherapy, or chemotherapy is prevalent in long-term cancer survivors. Chronic pain due to successful cancer treatment should be treated as chronic nonmalignant pain, primarily with ...

    • A computational pipeline for quantification of mouse myocardial stiffness parameters 

      Nordbø, Øyvind; Lamata, P.; Land, Sander; Niederer, Steven A.; Aronsen, Jan Magnus; Louch, William Edward; Sjaastad, Ivar; Martens, Harald; Gjuvsland, Arne Bjørke; Tøndel, Kristin; Torp, Hans; Lohezic, M; Schneider, Jürgen; Remme, Espen W.; Smith, Nicolas P; Omholt, Stig W; Vik, Jon Olav (Journal article; Peer reviewed, 2014)
      The mouse is an important model for theoretical–experimental cardiac research, and biophysically based whole organ models of the mouse heart are now within reach. However, the passive material properties of mouse myocardium ...

    • A consensus-based template for documenting and reporting in physician-staffed pre-hospital services 

      Krüger, Andreas J.; Lockey, David; Kurola, Juoni; Di Bartolomeo, Stefano; Castrén, Maaret; Mikkelsen, Søren; Lossius, Hans Morten (Journal article; Peer reviewed, 2011)
      Background: Physician-staffed pre-hospital units are employed in many Western emergency medical services (EMS) systems. Although these services usually integrate well within their EMS, little is known about the quality ...

    • A cross-sectional study on the relationship between BMI and cognition 

      Nilsen, Runi Elise Ertsås (Master thesis, 2020)
      Introduksjon: Tidligere forskning har vist sammenheng mellom overvekt/ fedme og patologier knyttet til overvekt/fedme og kognisjon, indikerte at individer med fedme i midten av livet kunne ha lavere kognitiv funksjon ...

    • A fast 4D B-spline framework for model-based reconstruction and regularization in vector flow imaging 

      Grønli, Thomas; Wigen, Morten Smedsrud; Segers, Patrick; Løvstakken, Lasse (Journal article; Peer reviewed, 2018)
      A generic framework for model-based regularization and reconstruction is described, with applications in a wide range of noisy measurement scenarios. The framework employs automatic differentiation and stochastic gradient ...