Browsing Institutt for sirkulasjon og bildediagnostikk by Title
Now showing items 814-833 of 1083
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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 ... -
Randomized clinical trial of topical tranexamic acid after reduction mammoplasty
(Journal article; Peer reviewed, 2015)Background The antifibrinolytic drug tranexamic acid is currently being rediscovered for both trauma and major surgery. Intravenous administration reduces the need for blood transfusion and blood loss by about one-third, ... -
A randomized study of the effect of patient positioning on setup reproducibility and dose distribution to organs at risk in radiotherapy of rectal cancer patients
(Peer reviewed; Journal article, 2015)Background:The patient positioning in pelvic radiotherapy (RT) should be decided based on both reproducibilityand on which position that yields the lowest radiation dose to the organs at risk (OAR), and thereby less ... -
Rapid declines in systolic blood pressure are associated with an increase in pulse transit time
(Peer reviewed; Journal article, 2020)Background The correlation between pulse transit time and blood pressure has been proposed as a route to measure continuous non-invasive blood pressure. We investigated whether pulse transit time trends could model blood ... -
Rationale for the ASSAIL-MI-trial: a randomised controlled trial designed to assess the effect of tocilizumab on myocardial salvage in patients with acute ST-elevation myocardial infarction (STEMI).
(Journal article; Peer reviewed, 2019)Introduction Interleukin-6 (IL-6) may be involved in ischaemia-reperfusion injury and myocardial remodelling after myocardial infarction (MI). We have recently shown that IL-6 inhibition by tocilizumab attenuates systemic ... -
Real-time 3-D echocardiography:challenges of parallel transmission and acquisition
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:104, Doctoral thesis, 2014)Ultrasound imaging is a well-established, noninvasive and relatively low cost method for assessing the cardiac function. By providing dense image volumes in real-time, three-dimensional echocardiography could improve and ... -
Real-Time Automatic Ejection Fraction and Foreshortening Detection Using Deep Learning
(Peer reviewed; Journal article, 2020)Volume and ejection fraction (EF) measurements of the left ventricle (LV) in 2-D echocardiography are associated with a high uncertainty not only due to interobserver variability of the manual measurement, but also due to ... -
Real-time forecasting of emergency department arrivals using prehospital data
(Journal article; Peer reviewed, 2019)Background: Crowding in emergency departments (EDs) is a challenge globally. To counteract crowding in day-to-day operations, better tools to improve monitoring of the patient flow in the ED is needed. The objective of ... -
Real-time Standard View Classification in Transthoracic Echocardiography using Convolutional Neural Networks
(Journal article; Peer reviewed, 2018)Transthoracic echocardiography examinations are usually performed according to a protocol comprising different probe postures providing standard views of the heart. These are used as a basis when assessing cardiac function, ... -
Reasons for prolonged time for diagnostic workup for stage I-II lung cancer and estimated effect of applying an optimized pathway for diagnostic procedures
(Journal article; Peer reviewed, 2019)Background:Minimizing the time until start of cancer treatment is a political goal. In Norway, the target time forlung cancer is 42 days. The aim of this study was to identify reasons for delays and estimate the effect on ... -
Reduced Long-Term Relative Survival in Females and Younger Adults Undergoing Cardiac Surgery: A Prospective Cohort Study
(Journal article; Peer reviewed, 2016)Objectives To assess long-term survival and mortality in adult cardiac surgery patients. Methods 8,564 consecutive patients undergoing cardiac surgery in Trondheim, Norway from 2000 until censoring 31.12.2014 were ... -
Reduced peak oxygen uptake and implications for cardiovascular health and quality of life in patients with schizophrenia
(Journal article; Peer reviewed, 2011)Background: Peak oxygen uptake (VO2peak) is a strong predictor of cardiovascular disease (CVD) and all-cause mortality, but is inadequately described in patients with schizophrenia. The aim of this study was to ... -
Reduced reactive hyperemia may explain impaired flow-mediated dilation after on-pump cardiac surgery
(Journal article; Peer reviewed, 2017)In previous studies, Flow Mediated Dilation (FMD) was used to study the effect of cardiac surgery on endothelial function. This study investigated the effect of on‐pump cardiac surgery on FMD and reactive hyperemia. The ...