Browsing HV - Institutt for naturvitenskapelige helsefag by Title
Now showing items 326-345 of 446
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Radiological review of prior screening mammograms of screen-detected breast cancer
(European Radiology;, Journal article; Peer reviewed, 2020-10-01)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 ... -
A randomized controlled trial of digital breast tomosynthesis versus digital mammography in population-based screening in Bergen: interim analysis of performance indicators from the To-Be trial
(European Radiology;March 2019, Volume 29, Issue 3, Journal article; Peer reviewed, 2018-08-29)Objectives: To describe a randomized controlled trial (RCT) of digital breast tomosynthesis including synthesized two dimensional mammograms (DBT) versus digital mammography (DM) in a population-based screening program for ... -
The readout thickness versus the measured thickness for a range of screen film mammography and full-field digital mammography units
(Medical physics (Lancaster);39 (1), Journal article; Peer reviewed, 2011-12-20)Purpose: To establish a simple method to determine breast readout accuracy on mammography units. Methods: A thickness measuring device (TMD) was used in conjunction with a breast phantom. This phantom had compression ... -
Recruitment challenges in clinical research including cancer patients and their caregivers. A randomized controlled trial study and lessons learned
(Trials;16(428), Journal article; Peer reviewed, 2015)Background: To test seven different strategies for recruitment in a randomized controlled trial, to report documented response data from each strategy, and to discuss recruitment challenges. Methods: We used 5 opt-in ... -
Reference ranges for antiepileptic drugs revisited: a practical approach to establish national guidelines
(Journal article; Peer reviewed, 2018)Background and objective: Laboratories sometimes use different reference ranges for the same antiepileptic drug (AED), particularly for new and poorly investigated drugs. This may contribute to misunderstandings, concerns ... -
Refractory epilepsy and nonadherence to drug treatment
(Epilepsia Open;Volume 4, Issue 4,December 2019, Journal article; Peer reviewed, 2019-10-28)In patients with epilepsy, nonadherence to agreed antiepileptic drug (AED) treatment may result in seizure relapse, and at worst sudden unexpected death. The aim of this study was to examine the extent of both unintentional ... -
Regional performance variation in external validation of four prediction models for severity of COVID-19 at hospital admission: An observational multi-centre cohort study
(PLOS ONE;16 (8): e0255748, Peer reviewed; Journal article, 2021-08-25)Background: Prediction models should be externally validated to assess their performance before implementation. Several prediction models for coronavirus disease-19 (COVID-19) have been published. This observational cohort ... -
Relationship between saliva and plasma rufinamideconcentrations in patients with epilepsy
(Epilepsia;Volume 61, Issue 7, July 2020, Journal article; Peer reviewed, 2020-06-20)The assay of saliva samples provides a valuable alternative to the use of blood samples for therapeutic drug monitoring (TDM), at least for certain categories of patients. To determine the feasibility of using saliva ... -
Relationship between teaching modality and COVID-19, well-being, and teaching satisfaction (campus & corona): A cohort study among students in higher education
(Public Health in Practice;Volume 2, November 2021, 100187, Peer reviewed; Journal article, 2021-08-27)Objectives: Higher education institutions all over the world struggled to balance the need for infection control and educational requirements, as they prepared to reopen after the first wave of the COVID-19 pandemic. A ... -
Relaxation-Time Determination from Continuous-Microwave Saturation of EPR Spectra
(Radiation Research;172, Journal article; Peer reviewed, 2009)Based on the theories of Portis and of Castner 50 years ago, different continuous-wave measurement procedures for analyzing the microwave saturation power dependence of inhomogeneously broadened EPR lines were developed. ... -
Remodelling of oxidative energy metabolism by galactose improves glucose handling and metabolic switching in human skeletal muscle cells
(Journal article; Peer reviewed, 2013-04-01)Cultured human myotubes have a low mitochondrial oxidative potential. This study aims to remodel energy metabolism in myotubes by replacing glucose with galactose during growth and differentiation to ultimately examine the ... -
Renal stone detection using a low kilo-voltage paediatric CT protocol – A porcine phantom study
(Journal of Medical Radiation Sciences (JMRS);, Peer reviewed; Journal article, 2021-06-22)Introduction: Reducing tube voltage is an effective dose saving method in computed tomography (CT) assuming tube current is not concurrently increased. Recent innovations in scanner technology now enable CT tube voltage ... -
Reply to Letter to the editor “Radiographer research-what next?”,
(Radiography;, Peer reviewed; Journal article, 2023)Dear Editor, I read with interest the letter ”Radiographer research-what next?” by Watts1 regarding a recent paper by M.R. Vils Pedersen,2 both highlighting the crucial role of management support and research culture ... -
Respiratory motion during 90Yttrium PET contributes to underestimation of tumor dose and overestimation of normal liver tissue dose.
(Journal article; Peer reviewed, 2017)Background Yttrium-90 dosimetry after radioembolization is reliant on accurate quantitative imaging of the microsphere deposition. Previous studies have focused on the correction of geometrical resolution effects. Pu ... -
Restriction spectrum imaging of white matter and its relation to neurological disability in multiple sclerosis
(Multiple Sclerosis;, Journal article; Peer reviewed, 2018-03-15)Background: Restriction spectrum imaging (RSI) is a recently introduced magnetic resonance imaging diffusion technique. The utility of RSI in multiple sclerosis (MS) is unknown. Objective: To investigate the association ... -
A retrospective review of changes and challenges in the use ofantiseizure medicines in Dravet syndrome in Norway
(Epilepsia Open;Volume 5, Issue 3, September 2020, Journal article; Peer reviewed, 2020-06-26)Objective: Dravet syndrome is a developmental and epileptic encephalopathy characterized by severe and drug-resistant seizures in early childhood, followed by developmental delay. The purpose of this study was to investigate ... -
Review Article An evaluation of SAFIRE s potential to reduce the dose received by paediatric patients undergoing CT: a narrative review
(Peer reviewed; Chapter, 2015-04-24)Introduction: The purpose of this review is to gather and analyse current research publications to evaluate Sinogram-Affirmed Iterative Reconstruction (SAFIRE). The aim of this review is to investigate whether this ... -
Risk of breast cancer after false-positive results in mammographic screening
(Journal article; Peer reviewed, 2016)Women with false-positive results are commonly referred back to routine screening. Questions remain regarding their long-term outcome of breast cancer. We assessed the risk of screen-detected breast cancer in women with ... -
Risk of Relapse Among Opioid-Dependent Patients Treated With Extended-Release Naltrexone or Buprenorphine-Naloxone: A Randomized Clinical Trial
(American Journal on Addictions;Volume 30, Issue 5, September 2021, Peer reviewed; Journal article, 2021-09-06)Background and Objectives: Compare the risk of relapse to heroin and other illicit opioids among opioid‐dependent patients receiving treatment with extended‐release naltrexone (XR‐NTX) or buprenorphine‐naloxone (BP‐NLX). ... -
Road Traffic Injuries in Malawi: with special focus on the role of alcohol
(Research report, 2021-06-17)Driving under the influence of alcohol is one of the principal causes of road traffic crashes (RTCs) [1]. The use of alcohol is also a risk factor for other road users, such as pedestrians and bicyclists. The association ...