Blar i Institutt for sirkulasjon og bildediagnostikk på tittel

Viser treff 1402-1421 av 1866

    • Quality of radiation protection aprons and quality control routines at different diagnostic imaging modalities 

      Bjørkås, Linda Wie; Blø, Sandra; Rekdal, Magnus Kristoffersen; Rusandu, Albertina (Peer reviewed; Journal article, 2020)
      Introduction: The purpose of this project was to assess the quality of lead aprons at different departments at two hospitals and to investigate whether there was a connection between routines for controlling lead aprons ...

    • Quantification of mitral and aortic regurgitation using high pulse repetition frequency three-dimensional color Doppler 

      Skaug, Thomas Renhult (Doctoral thesis at NTNU;2016:4, Doctoral thesis, 2016)
      Det er utviklet og patentert en tredimensjonal ultralyd Doppler metode (multibeam high pulse repetition frequency color Doppler eller MULDO) for kvantitering av klaffelekkasjer. Ved hjelp av Doppler kan blodstrøms ...

    • Quantifying bone marrow inflammatory edema in the spine and sacroiliac joints with thresholding 

      Chronaiou, Ioanna; Thomsen, Ruth Stoklund; Huuse, Else Marie; Euceda, Leslie R.; Pedersen, Susanne Juhl; Hoff, Mari; Sitter, Beathe (Journal article; Peer reviewed, 2017)
      Background Psoriatic Arthritis (PsA) is a chronic inflammatory arthritis that develops in patients with psoriasis. Inflammatory edema in the spine may reflect subclinical disease activity and be a predictor of radiographic ...

    • Quantifying Valve Regurgitation using 3-D Doppler Ultrasound Images and Deep Learning 

      Wifstad, Sigurd Vangen; Løvstakken, Lasse; Avdal, Jørgen; Berg, Erik Andreas Rye; Torp, Hans; Grenne, Bjørnar; Fiorentini, Stefano (Peer reviewed; Journal article, 2022)
      Accurate quantification of cardiac valve regurgitation jets is fundamental for guiding treatment. Cardiac ultrasound is the preferred diagnostic tool, but current methods for measuring the regurgitant volume (RVol) are ...

    • Quantifying Valve Regurgitation Using 3-D Doppler Ultrasound Images and Deep Learning 

      Wifstad, Sigurd Vangen; Løvstakken, Lasse; Avdal, Jørgen; Berg, Erik Andreas Rye; Torp, Hans; Grenne, Bjørnar; Fiorentini, Stefano (Peer reviewed; Journal article, 2022)
      Accurate quantification of cardiac valve regurgitation jets is fundamental for guiding treatment. Cardiac ultrasound is the preferred diagnostic tool, but current methods for measuring the regurgitant volume are limited ...

    • Quantitative 31P HR-MAS MR spectroscopy for detection of response to PI3K/mTOR inhibition in breast cancer xenografts 

      Esmaeili, Morteza; Bathen, Tone Frost; Engebråten, Olav; Mælandsmo, Gunhild; Gribbestad, Ingrid S; Moestue, Siver Andreas (Journal article; Peer reviewed, 2014)
      PURPOSE: Phospholipid metabolites are of importance in cancer studies, and have been suggested as candidate metabolic biomarkers for response to targeted anticancer drugs. The purpose of this study was to develop a ...

    • 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 Cardiac Analysis Algorithms for Pocket-sized Ultrasound Devices 

      Snare, Sten Roar (Doktoravhandlinger ved NTNU, 1503-8181; 2011:107, Doctoral thesis, 2011)
      Siden introduksjonen i 1970-årene har ultralyd blitt ett av de viktigste verktøyene for påvisning av hjertesykdommer. De fleste ultralydundersøkelser er hurtige og smertefrie. Ultralydapparatene har tradisjonelt vært store ...

    • Quantitative comparison of PET performance-Siemens Biograph mCT and mMR 

      Karlberg, Anna Maria; Sæther, Oddbjørn; Eikenes, Live; Goa, Pål Erik (Peer reviewed; Journal article, 2016)
      Background: Integrated clinical whole-body PET/MR systems were introduced in2010. In order to bring this technology into clinical usage, it is of great importance to compare the performance with the well-established PET/CT. ...

    • Quantitative Doppler analysis using color flow imaging and adaptive signal processing 

      Karabiyik, Yücel (Doctoral theses at NTNU;2017:227, Doctoral thesis, 2017)
      Kvantitative Doppler-m˚alinger fra farge-Doppler ved bruk av adaptiv signalprosessering Medisinsk ultralyd er et viktig verktøy i obstetrikk for ˚a vurdere mors helse og fosterets utvikling gjennom svangerskapet. ...

    • Quantitative Doppler Methods in Cardiovascular Imaging 

      Fredriksen, Tonje Dobrowen (Doktoravhandlinger ved NTNU, 1503-8181; 2014:312, Doctoral thesis, 2014)
      Ultrasound imaging of blood flow in the heart and blood vessels has become an essential part of diagnosing diseases related to the circulatory system. By using different Doppler methods, the blood flow may be visualized ...

    • 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 ...

    • Quantitative prostate cancer MRI: status, challenges and opportunities 

      Sørland, Kaia Ingerdatter (Doctoral theses at NTNU;2024:77, Doctoral thesis, 2024)
      Prostate cancer was in 2020 the most frequently diagnosed cancer in men in over half of the world’s countries, and the leading cause of cancer death among men in 48 countries. Medical imaging is one of the main pillars of ...

    • Quantitative texture analysis in the prediction of IDH status in low-grade gliomas 

      Jakola, Asgeir Store; Zang, YH; Skjulsvik, Anne Jarstein; Solheim, Ole; Bø, Hans Kristian; Berntsen, Erik Magnus; Reinertsen, Ingerid; Gulati, Sasha; Förander, Petter; Brismar, Torkel B. (Journal article; Peer reviewed, 2017)
      Objectives Molecular markers provide valuable information about treatment response and prognosis in patients with low-grade gliomas (LGG). In order to make this important information available prior to surgery the aim of ...

    • R2* Relaxation Affects Pharmacokinetic Analysis of Dynamic Contrast-Enhanced MRI in Cancer and Underestimates Treatment Response at 7 T 

      Kim, Jana; Moestue, Siver Andreas; Bathen, Tone Frost; Kim, Eugene (Journal article, 2019)
      Effective transverse relaxivity of gadolinium-based contrast agents is often neglected in dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Here, we assess time and tissue dependence of R2* enhancement and ...

    • Radiografer og egen sikkerhetskultur 

      Meck, Inger Lise; Miyandoab, Soniya Mahmoudieh; Steinsvik, Pia Marie (Bachelor thesis, 2019)
      Bakgrunn: Som kommende radiografer mener vi at det er viktig å ha gode holdninger og kunnskap til strålevern og smittevern. Likevel har vi opplevelsen av at fokuset rundt sikkerhet er større på pasienten enn på radiografen. ...

    • Radiografer og hanskebruk ved innleggelse og seponering av perifert venekateter 

      ; Johansen, Lena Marie; Johnsen, Linnea Christine Bergem (Bachelor thesis, 2021)
      Sammendrag Bakgrunn: Ved teoretisk undervisning og ferdighetstreninger på radiografutdanningen lærte vi å bruke hansker ved innleggelse og seponering av perifert venekateter. I praksis på ulike sykehus har vi derimot ...

    • Radiografers ansvar rundt berettigelse av konvensjonelle røntgenundersøkelser 

      Stokke, Lise; Dyrnes, Jenny Berre (Bachelor thesis, 2022)
      Tittel: Radiografers ansvar rundt berettigelse av konvensjonelle røntgenundersøkelser Introduksjon: Suboptimale henvisninger til røntgenundersøkelser er et utbredt problem. I dag har ikke radiografer myndighet til å ta ...

    • Radiografers kunnskap om medikamenthåndtering 

      Iversen, Frida; Monsås, Kristine (Bachelor thesis, 2022)
      Sammendrag Introduksjon Vår hensikt med denne studien er å finne ut om radiografer har tilstrekkelig kunnskap om medikamentregning. Det er et krav om at radiografstudenter skal gjennomføre en medikamentregningstest for å ...

    • Radiografers legemiddelhåndtering - en pilotstudie 

      Næss, Ola Hellingsrud; Aasand, Martine Strand; Rusandu, Albertina (Journal article; Peer reviewed, 2018)
      Innledning: Radiografiens fagområder er i konstant utvikling. Det setter krav til utdanningen, til arbeidsgiver og til profesjonsutøveren som skal forsikre seg om at kunnskaper og ferdigheter er ajour,og at man holder høy ...