Browsing NTNU Open by Author "Salvesen, Øyvind"
Now showing items 1-20 of 99
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Absolute and relative accelerometer thresholds for determining the association between physical activity and metabolic syndrome in the older adults: The Generation-100 study
Zisko, Nina; Nauman, Javaid; Bucher Sandbakk, Silvana; Aspvik, Nils Petter; Salvesen, Øyvind; Carlsen, Trude; Viken, Hallgeir; Ingebrigtsen, Jan Erik; Wisløff, Ulrik; Stensvold, Dorthe (Journal article; Peer reviewed, 2017)Background When assessing population adherence to physical activity (PA) recommendation using accelerometers, absolute intensity threshold definition is applied despite having limited validity in those with low cardiorespiratory ... -
Accuracy and Complication Rates of External Ventricular Drain Placement With Twist Drill and Bolt System Versus Standard Trephine and Tunnelation: A Retrospective Population-Based Study
Mansoor, Nadia Mauland; Madsbu, Mattis Aleksander; Mansoor, Nina M.; Trønnes, Andreas; Fredriksli, Oddrun; Salvesen, Øyvind; Jakola, Asgeir S; Solheim, Ole; Gulati, Sasha (Peer reviewed; Journal article, 2020)Background: An external ventricular drain (EVD) is typically indicated in the presence of hydrocephalus and increased intracranial pressure (ICP). Procedural challenges have prompted the development of different methods ... -
Age-related change in peak oxygen uptake and change of cardiovascular risk factors. The HUNT Study
Letnes, Jon Magne; Dalen, Håvard; Aspenes, Stian Thoresen; Salvesen, Øyvind; Wisløff, Ulrik; Nes, Bjarne (Peer reviewed; Journal article, 2020)Background Large longitudinal studies on change in directly measured peak oxygen uptake (VO2peak) is lacking, and its significance for change of cardiovascular risk factors is uncertain. We aimed to assess ten-year ... -
The Amyloid, Tau, and Neurodegeneration (A/T/N) Classification Applied to a Clinical Research Cohort with Long-Term Follow-Up
Grøntvedt, Gøril Rolfseng; Lauridsen, Camilla; Berge, Guro; White, Linda Rosemary; Salvesen, Øyvind; Bråthen, Geir; Sando, Sigrid Botne (Peer reviewed; Journal article, 2020)Background: The unbiased amyloid, tau, and neurodegeneration (A/T/N) classification is designed to characterize individuals in the Alzheimer continuum and is currently little explored in clinical cohorts. Objective: A ... -
Angiogenesis and radiological tumor growth in patients with glioblastoma
Mikkelsen, Vilde Elisabeth; Stensjøen, Anne Line; Granli, Unn Sophie; Berntsen, Erik Magnus; Salvesen, Øyvind; Solheim, Ole; Torp, Sverre Helge (Journal article; Peer reviewed, 2018)Background The preoperative growth of human glioblastomas (GBMs) has been shown to vary among patients. In animal studies, angiogenesis has been linked to hypoxia and faster growth of GBM, however, its relation to the ... -
Anxiety and Depression as Risk Factors in Frontotemporal Dementia and Alzheimers Disease: The HUNT Study
Eid, Hege Rasmussen; Rosness, Tor Atle; Bosnes, Ole; Salvesen, Øyvind; Knutli, Marlen; Stordal, Eystein (Journal article; Peer reviewed, 2018)Background: The roles of both anxiety and depression as risk factors for frontotemporal dementia (FTD) and Alzheimer’s disease (AD) have not been previously investigated together. Objective: To study anxiety and depression ... -
Assessment of headache characteristics in a general adolescent population: a comparison between retrospective interviews and prospective diary recordings
Krogh, Anne Berit; Larsson, Bo Sture; Salvesen, Øyvind; Linde, Mattias (Peer reviewed; Journal article, 2016)Background Reliable information on headache characteristics, including frequency and intensity, headache-associated impairment, and use of analgesic medications, may depend on the assessment method used. This study ... -
Associations of Changes in Cardiorespiratory Fitness and Symptoms of Anxiety and Depression With Brain Volumes: The HUNT Study
Zotcheva, Ekaterina; Pintzka, Carl Wolfgang Schøyen; Salvesen, Øyvind; Selbæk, Geir; Håberg, Asta; Ernstsen, Linda (Journal article; Peer reviewed, 2019)Objective: We investigated the independent and joint associations of changes in estimated cardiorespiratory fitness (eCRF) and symptoms of anxiety and depression with brain volumes in individuals from the general ... -
Automated segmentation of endometrial cancer on MR images using deep learning
Hodneland, Erlend; Dybvik, Julie Andrea; Wagner-Larsen, Kari Strøno; Solteszova, Veronika; Zanna, Antonella; Fasmer, Kristine Eldevik; Krakstad, Camilla; Lundervold, Arvid; Lundervold, Alexander Selvikvåg; Salvesen, Øyvind; Erickson, Bradley J.; Haldorsen, Ingfrid S (Peer reviewed; Journal article, 2021)Preoperative MR imaging in endometrial cancer patients provides valuable information on local tumor extent, which routinely guides choice of surgical procedure and adjuvant therapy. Furthermore, whole-volume tumor analyses ... -
Automatic measurements of mitral annular plane systolic excursion and velocities to detect left ventricular dysfunction
Grue, Jahn Frederik; Storve, Sigurd; Dalen, Håvard; Salvesen, Øyvind; Mjølstad, Ole Christian; Samstad, Stein; Torp, Hans; Haugen, Bjørn Olav (Journal article; Peer reviewed, 2018)The purpose of the study described here was to evaluate an automatic algorithm for detection of left ventricular dysfunction, based on measurements of mitral annular motion indices from color tissue Doppler apical four-chamber ... -
Bone mineral density in patients with psoriatic arthritis: data from the Nord-Trøndelag Health Study 3
Gulati, Agnete Malm; Hoff, Mari; Salvesen, Øyvind; Dhainaut, Alvilde; Semb, Anne Grete; Kavanaugh, Arthur; Haugeberg, Glenn (Journal article; Peer reviewed, 2017)Background The risk of osteoporosis in patients with psoriatic arthritis (PsA) remains unclear. The aim of this study was to compare bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA) in patients ... -
Boys and girls differ in symptoms and neurodevelopmental outcome after perinatal metabolic acidosis, a population-based study
Hafström, Maria; Salvesen, Øyvind; Kjellmer, Ingemar (Peer reviewed; Journal article, 2018)Aim To evaluate sex differences in infants born at term with metabolic acidosis with regard to perinatal health and symptomatology, and developmental outcome. Methods From a population-based cohort of infants born at ... -
Bronchoalveolar lavage fluid IFN- γ + Th17 cells and regulatory T cells in pulmonary sarcoidosis
Tøndell, Anders; Moen, Torolf; Børset, Magne; Salvesen, Øyvind; Rø, Anne Dorthea; Sue-Chu, Malcolm (Journal article; Peer reviewed, 2014)In sarcoidosis, increased Th17 cell fractions have been reported in bronchoalveolar lavage fluid, and elevated numbers of Th17 cells producing IFN-𝛾 have been observed in peripheral blood. The balance between Th1, Th17, ... -
Caesarean section performed by medical doctors and associate clinicians in Sierra Leone
van Duinen, Aalke Johan; Kamara, Michael M.; Hagander, Lars; Ashley, Thomas; Koroma, Alimamy Philip; Leather, Andy J.M.; Elhassein, Mohammed; Darj, Elisabeth; Salvesen, Øyvind; Wibe, Arne; Bolkan, Håkon Angell (Journal article; Peer reviewed, 2019)Background Many countries lack sufficient medical doctors to provide safe and affordable surgical and emergency obstetric care. Task‐sharing with associate clinicians (ACs) has been suggested to fill this gap. The aim ... -
Cardiac function associated with previous, current and repeated depression and anxiety symptoms in a healthy population: the HUNT study.
Gustad, Lise; Bjerkeset, Ottar; Strand, Linn B; Janszky, Imre; Salvesen, Øyvind; Dalen, Håvard (Peer reviewed; Journal article, 2016)Objective: Symptoms of anxiety and depression often co-exist with cardiovascular disease (CVD), yet little is known about the association with left ventricular (LV) subclinical dysfunction. We aimed to study the cross-sectional ... -
Cardiac function in newborns of obese women and the effect of exercise during pregnancy. A randomized controlled trial
Nyrnes, Siri Ann; Garnæs, Kirsti Krohn; Salvesen, Øyvind; Timilsina, Anita Sharma; Moholdt, Trine; Ingul, Charlotte Bjørk (Journal article; Peer reviewed, 2018)Background The prevalence of maternal obesity is rising. Pre-pregnancy obesity is associated with later cardiovascular disease in the child and the underlying pathogenesis begins in early life. Therefore, pregnancy and ... -
Cerebrospinal fluid A?43 is reduced in early-onset compared to late-onset Alzheimer's disease, but has similar diagnostic accuracy to A?42
Lauridsen, Camilla; Sando, Sigrid Botne; Møller, Ina; Berge, Guro; Pomary, Precious Kwadzo; Grøntvedt, Gøril Rolfseng; Salvesen, Øyvind; Bråthen, Geir; White, Linda (Journal article; Peer reviewed, 2017)Background: Amyloid beta 1–43 (Aβ43) may be a useful additional biomarker for diagnosing Alzheimer’s disease (AD). We have investigated cerebrospinal fluid (CSF) levels of Aβ43 in patients with early-onset AD in contrast ... -
Cerebrospinal Fluid Levels of Amyloid Beta 1-43 in Patients with Amnestic Mild Cognitive Impairment or Early Alzheimer's Disease: A 2-Year Follow-Up Study
Lauridsen, Camilla; Sando, Sigrid Botne; Shabnam, Adiba; Møller, Ina; Berge, Guro; Grøntvedt, Gøril Rolfseng; Bakken, Inger Johanne; Salvesen, Øyvind; Bråthen, Geir; White, Linda (Journal article; Peer reviewed, 2016)Introduction: Biomarkers that will reliably predict the onset of Alzheimer’s disease (AD) are urgently needed. Although cerebrospinal fluid (CSF) amyloid beta 1–42 (Aβ42), total tau, and phosphorylated tau can be used to ... -
Change in cardiovascular risk factors in patients who develop psoriatic arthritis: longitudinal data from the Nord-Trøndelag Health Study (HUNT)
Gulati, Agnete Malm; Salvesen, Øyvind; Thomsen, Ruth Stoklund; Kavanaugh, Arthur; Semb, Anne Grete; Rollefstad, Silvia Christin Hellerud; Haugeberg, Glenn; Hoff, Mari (Journal article; Peer reviewed, 2018)Objectives The aim of this population-based study was to compare changes in cardiovascular (CV) risk factors over a decade-long period in patients who developed psoriatic arthritis (PsA) and the background population. Methods ... -
Comparative effectiveness of microdecompression and laminectomy for central lumbar spinal stenosis: Study protocol for an observational study
Nerland, Ulf Skule; Jakola, Asgeir Store; Solheim, Ole; Weber, Clemens; Rao, Vidar; Lønne, Greger; Solberg, Tore; Salvesen, Øyvind; Carlsen, Sven Magnus; Nygaard, Øystein Petter; Gulati, Sasha (Journal article; Peer reviewed, 2014)Introduction: This observational study is designed to test the equivalence between the clinical effectiveness of microdecompression and laminectomy in the surgical treatment of central lumbar spinal stenosis. Lumbar spinal ...