Browsing Institutt for sirkulasjon og bildediagnostikk by Title
Now showing items 750-769 of 1013
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A Quality Control System for Automated Prostate Segmentation on T2-Weighted MRI
(Journal article; Peer reviewed, 2020)Computer-aided detection and diagnosis (CAD) systems have the potential to improve robustness and efficiency compared to traditional radiological reading of magnetic resonance imaging (MRI). Fully automated segmentation ... -
Quality in physician-staffed pre-hospital emergency social services - developing a method for continuous quality estimation
(Doctoral theses at NTNU;2020:89, Doctoral thesis, 2020) -
Quantification of mitral and aortic regurgitation using high pulse repetition frequency three-dimensional color Doppler
(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
(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 ... -
Quantitative 31P HR-MAS MR spectroscopy for detection of response to PI3K/mTOR inhibition in breast cancer xenografts
(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
(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
(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
(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
(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
(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
(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 texture analysis in the prediction of IDH status in low-grade gliomas
(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
(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
(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. ... -
Radiografers legemiddelhåndtering - en pilotstudie
(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 ... -
Radiografers og radiologers håndtering av henvisninger uten tilstrekkelig indikasjon til konvensjonell røntgen
(Bachelor thesis, 2019)Bakgrunn: I praksis har vi erfart at henvisninger uten tilstrekkelig indikasjon er et vedvarende problem som påvirker radiografens og radiologens arbeidshverdag. Slike henvisninger kan være tidkrevende og potensielt gi ... -
Radiological assessment of chest compression point and achievable compression depth in cardiac patients
(Peer reviewed; Journal article, 2016)Background Using magnetic resonance imaging (MRI) to relate cardiovascular structures to surface anatomy in a population relevant to cardiac arrest victims, relate the external thoracic anterior-posterior (AP) diameter ... -
Radiological considerations in 3D ultrasound guided diffuse low-grade glioma surgery
(Doctoral theses at NTNU;2019:257, Doctoral thesis, 2019) -
Radiological review of prior screening mammograms of screen-detected breast cancer
(Peer reviewed; Journal article, 2020)Objective: To perform a radiological review of mammograms from prior screening and diagnosis of screen-detected breast cancer in BreastScreen Norway, a population-based screening program. Methods: We performed a consensus-based ... -
Radiomics for radiologic prediction of molecular class in patients with low-grade glioma.
(Master thesis, 2019)Bakgrunn: Historisk sett, ble diffust infiltrerende lavgradige gliomer (LGG) klassifisert ved hjelp av kun histopatologisk informasjon hentet fra en invasiv prøve av tumoralt vev, som krever et operativ inngrep. Den reviderte ...