Browsing NTNU Open by Author "Dalen, Håvard"
Now showing items 41-60 of 91
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Fully automatic estimation of global left ventricular systolic function using deep learning in transesophageal echocardiography
Berg, Erik Andreas Rye; Tasken, Anders Austlid; Nordal, Trym; Grenne, Bjørnar Leangen; Espeland, Torvald; Garstad, Idar Kirkeby; Dalen, Håvard; Holte, Espen; Stølen, Stian Bergseng; Aakhus, Svend; Kiss, Gabriel Hanssen (Journal article, 2023)Aims To improve monitoring of cardiac function during major surgery and intensive care, we have developed a method for fully automatic estimation of mitral annular plane systolic excursion (auto-MAPSE) using deep learning ... -
Genetic risk score associations for myocardial infarction are comparable in persons with and without rheumatoid arthritis: the population-based HUNT study
Rostami, Sina; Hoff, Mari; Dalen, Håvard; Hveem, Kristian; Videm, Vibeke (Peer reviewed; Journal article, 2020)Persons with rheumatoid arthritis (RA) have increased risk of myocardial infarction (MI). Overlapping associations with MI of weighted genetic risk scores (wGRS) for coronary artery disease (CAD) and RA is unknown in a ... -
Health Literacy and Risk Factors for Coronary Artery Disease (From the CONCARD<sup>PCI</sup> Study)
Brørs, Gunhild; Dalen, Håvard; Allore, Heather; Deaton, Christi; Fridlund, Bengt Gotthard Anton; Osborne, Richard H.; Palm, Pernille; Wentzel-Larsen, Tore; Norekvål, Tone Merete (Journal article; Peer reviewed, 2022) -
High-Intensity Interval Training in Patients with Heart Failure with Reduced Ejection Fraction
Ellingsen, Øyvind; Halle, Martin; Conraads, Viviane; Støylen, Asbjørn; Dalen, Håvard; Delagardelle, Charles; Larsen, Alf Inge; Hole, Torstein; Mezzani, Alessandro; Van Craenenbroeck, Emeline M.; Videm, Vibeke; Beckers, Paul; Christle, Jeffrey W.; Winzer, Ephraim; Mangner, Norman; Woitek, Felix; Höllriegel, Robert; Pressler, Axel; Monk-Hansen, Tea; Snoer, Martin; Feiereisen, Patrick; Valborgland, Torstein; Kjekshus, John; Hambrecht, Rainer; Gielen, Stephan; Karlsen, Trine; Prescott, Eva; Linke, Axel (Journal article; Peer reviewed, 2017)Background: Small studies have suggested that high-intensity interval training (HIIT) is superior to moderate continuous training (MCT) in reversing cardiac remodeling and increasing aerobic capacity in patients with heart ... -
Høysensitiv troponin I-måling ved koronarsuspekte brystsmerter i akuttmottak
Graven, Torbjørn; Klykken, Bjørnar E.; Kleinau, Jens Olaf; Skjetne, Kyrre; Andersen, Garrett Newton; Dalen, Håvard (Journal article; Peer reviewed, 2021)BAKGRUNN Formålet med studien var å evaluere en ny algoritme basert på analyser av høysensitiv troponin I for rask avklaring ved koronarsuspekte brystsmerter. MATERIALE OG METODE To tidsperioder – før (1.10.2016–31.12.2016) ... -
The importance of concomitant mitral regurgitation for estimates of mitral valve area by pressure half time in patients with chronic rheumatic heart disease
Hauge, Ståle Wågen; Estensen, Mette-Elise; Persson, Robert; Abebe, Sintayehu; Mekonnen, Desalew; Nega, Berhanu; Solholm, Atle; Graven, Torbjørn; Salvesen, Øyvind Olav; Farstad, Marit; Vikenes, Kjell; Haaverstad, Rune; Dalen, Håvard (Peer reviewed; Journal article, 2023)Aims Aim was to study how concomitant mitral regurgitation (MR) assessed by qualitative and quantitative methods influence mitral valve area (MVA) calculations by the pressure half time method (MVAPHT) compared to ... -
Importance of length and external diameter in left ventricular geometry. Normal values from the HUNT Study
Støylen, Asbjørn; Hansen, Harald Edvard Mølmen; Dalen, Håvard (Journal article; Peer reviewed, 2016)Background: We aimed to study left ventricular (LV) geometry assessed by length (LVWL), external diameter (LVEDD) and relative wall thickness (RWT) in relation to age, body size and gender in healthy individuals. Methods: ... -
Indexing cardiac volumes for peak oxygen uptake to improve differentiation of physiological and pathological remodeling: from elite athletes to heart failure patients
Letnes, Jon Magne; Nes, Bjarne Martens; Langlo, Knut Asbjørn Rise; Lundgren, Kari Margrethe; Skovereng, Knut; Sandbakk, Øyvind Bucher; Wisløff, Ulrik; Dalen, Håvard; Aksetøy, Inger-Lise Aamot (Peer reviewed; Journal article, 2023)Aims Cardiovascular structures adapt to meet metabolic demands, but current methodology for indexing by body size does not accurately reflect such variations. Therefore, we aimed to investigate how left ventricular ... -
Infectious tenosynovitis with bloodstream infection caused by Erysipelothrix rhusiopathiae, a case report on an occupational pathogen
Hofseth, Kristine; Dalen, Håvard; Kibsgaard, Leif; Nebb, Solrun; Kümmel, Angela; Mehl, Arne (Journal article; Peer reviewed, 2017)Background: Erysipelothrix rhusiopathiae is an established animal pathogen, which may cause infections in humans. It is a gram-positive rod and found in the tonsils or the digestive tracts of animals. The bacterium is ... -
Infeksiøs endokarditt ved St. Olavs hospital 2010-2020 - Bruk av kardiale bildemodaliteter og karakteristika ved klaffeaffeksjon
de Lanlay, Even (Master thesis, 2021)Infeksiøs endokarditt er en alvorlig tilstand som karakteriseres blant annet av endokardiell bakteriekolonisering og systemisk infeksjon. Sykdommen rammer oftest hjertets klaffer, men kan også føre til mikro- eller septiske ... -
Intra‐arterial blood pressure traits during and after heavy resistance exercise in healthy males
Heitmann, Kim Arne; Dalen, Håvard; Gundersen, Guri Holmen; Ingvaldsen, Rolf Petter; Welde, Boye (Journal article; Peer reviewed, 2019)This randomized within‐subjects crossover‐designed study evaluated intra‐arterial blood pressure (BP) traits in seven healthy males (24 ± 1 years) during heavy resistance exercise (HRE) to failure (10 × 5 repetitions, 5RES) ... -
Investigating the causal interplay between sleep traits and risk of acute myocardial infarction: a Mendelian randomization study
Arora, Nikhil; Bhatta, Laxmi; Skarpsno, Eivind Schjelderup; Dalen, Håvard; Åsvold, Bjørn Olav; Brumpton, Ben Michael; Richmond, Rebecca C.; Strand, Linn Beate (Peer reviewed; Journal article, 2023)Background Few studies have investigated the joint effects of sleep traits on the risk of acute myocardial infarction (AMI). No previous study has used factorial Mendelian randomization (MR) which may reduce confounding, ... -
Left Atrial Volume, Cardiorespiratory Fitness, and Diastolic Function in Healthy Individuals: The HUNT Study, Norwa
Letnes, Jon Magne; Nes, Bjarne; Vaardal-Lunde, Kristina; Bratt Slette, Martine; Mølmen, Harald Edvard; Aspenes, Stian Thoresen; Støylen, Asbjørn; Wisløff, Ulrik; Dalen, Håvard (Journal article; Peer reviewed, 2020)Background Left atrial (LA) size and cardiorespiratory fitness (CRF) are predictors of future cardiovascular events in high‐risk populations. LA dilatation is a diagnostic criterion for left ventricular diastolic ... -
Left ventricular global strains by linear measurements in three dimensions: interrelations and relations to age, gender and body size in the HUNT Study
Støylen, Asbjørn; Hansen, Harald Edvard Mølmen; Dalen, Håvard (Journal article; Peer reviewed, 2019)Strain is a relative deformation and has three dimensions, in the left ventricle (LV) usually longitudinal (εL), transmural (εT) and circumferential (εC) strain. All three components can be measured generically by the basic ... -
Left ventricular longitudinal shortening: relation to stroke volume and ejection fraction in ageing, blood pressure, body size and gender in the HUNT3 study
Støylen, Asbjørn; Dalen, Håvard; Hansen, Harald Edvard Mølmen (Peer reviewed; Journal article, 2020)Background: Aims of this cross-sectional study were to assess: the relative contribution of left ventricular (LV) systolic long-axis shortening (mean mitral annular plane systolic excursion, MAPSE) to stroke volume (SV), ... -
Left ventricular longitudinal shortening: relation to stroke volume and ejection fraction in ageing, blood pressure, body size and gender in the HUNT3 study
Støylen, Asbjørn; Dalen, Håvard; Hansen, Harald Edvard Mølmen (Peer reviewed; Journal article, 2020)Background: Aims of this cross-sectional study were to assess: the relative contribution of left ventricular (LV) systolic long-axis shortening (mean mitral annular plane systolic excursion, MAPSE) to stroke volume (SV), ... -
Light-moderate alcohol consumption and left ventricular function among healthy, middle-aged adults: the HUNT study
Gemes, Katalin; Janszky, Imre; Strand, Linn B; László, Krisztina D.; Ahnve, Staffan; Vatten, Lars Johan; Dalen, Håvard; Mukamal, Kenneth J (Journal article; Peer reviewed, 2018)Objectives To investigate the association between alcohol consumption and left ventricular (LV) function in a population with low average alcohol intake. Design, setting and participants A total of 1296 healthy participants, ... -
Limited echocardiography and focused hand-held ultrasound by non-experts with decisionsupport for diagnosis and follow-up of heart failure patients.
Hjorth-Hansen, Anna Katarina (Doctoral theses at NTNU;2023:288, Doctoral thesis, 2023)This thesis focused on the use of limited echocardiography and focused hand-held ultrasound examinations performed by non-experts to improve the diagnostics and follow-up of patients with heart failure. Increasing age in ... -
Lipoprotein subfraction profiling in the search of new risk markers for myocardial infarction: The HUNT study
Sperstad, Sigri Bakken; Sæther, Julie Caroline; Klevjer, Marie; Giskeødegård, Guro F.; Bathen, Tone Frost; Røsbjørgen, Ragnhild; Dalen, Håvard; Bye, Anja (Peer reviewed; Journal article, 2023)Background Traditional biomarkers used to measure risk of myocardial infarction (MI) only explain a modest proportion of the incidence. Lipoprotein subfractions have the potential to improve risk prediction of MI. Aim We ... -
Mechanical wave velocities in left ventricular walls – in healthy subjects and patients with aortic stenosis
Espeland, Torvald; Wigen, Morten Smedsrud; Dalen, Håvard; Berg, Erik Andreas Rye; Hammer, Tommy Arild; Salles, Sebastien Andre Roger; Løvstakken, Lasse; Amundsen, Brage H.; Aakhus, Svend (Peer reviewed; Journal article, 2023)Background Mechanical wave velocity (MWV) measurement is a promising method for evaluating myocardial stiffness, because these velocities are higher in patients with myocardial disease. Objectives Using high frame ...