Blar i NTNU Open på forfatter "Støylen, Asbjørn"
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Myocardial performance assessment in neonates by one-segment strain and strain rate analysis by tissue Doppler - a quality improvement cohort study
Nestaas, Eirik; Støylen, Asbjørn; Fugelseth, Drude (Journal article; Peer reviewed, 2012)Objectives: To investigate one-segment strain and strain rate indices as measures of myocardial performance in asphyxiated term neonates. Design: Quality improvement cohort study. Setting: Newborns admitted to ... -
Over all variability of mitral annular plane peak systolic velocity and peak global longitudinal strain rate in relation to age, body size, and sex: The HUNT Study
Støylen, Asbjørn; Hansen, Harald Edvard Mølmen; Dalen, Håvard (Peer reviewed; Journal article, 2020)BACKGROUND: Left ventricular (LV) systolic global function can be assessed by peak annular systolic velocity S'. Global longitudinal strain rate (GLSR) is relative LV shortening rate, equivalent to normalizing S' for LV ... -
Physiological significance of pre- and post-ejection left ventricular tissue velocities and relations to mitral and aortic valve closures
Støylen, Asbjørn; Daae, Annichen Søyland (Peer reviewed; Journal article, 2021)Background: Tissue Doppler shows short duration velocity spikes during pre- and post-ejection (protodiastole). They have been assumed to be isovolumic contraction and relaxation movements, but this is not in accordance ... -
Quantification of regional myocardial function by strain rate and strain for evaluation of coronary artery disease: Automated versus manual analysis during acute myocardial infarction and dobutamine stress echocardiography
Ingul, Charlotte Björk (Doktoravhandlinger ved NTNU, 1503-8181; 2006:163, Doctoral thesis, 2006)Kvantifisering av hjertets muskelfunksjon med tøyning og tøyningshastighet målt med ultralyd for vurdering av koronar sykdom. Automatisert metode versus manuell ved akutt hjerteinfarkt og ultralyd stress test. Vanligvis ... -
Relation between mitral annular plane systolic excursion and global longitudinal strain in normal subjects: The HUNT study
Støylen, Asbjørn; Hansen, Harald Edvard Mølmen; Dalen, Håvard (Journal article; Peer reviewed, 2018)Background Left ventricular (LV) systolic long‐axis shortening can be measured as Mitral Annular Plane Systolic Excursion (MAPSE). Global longitudinal strain (GLS) is relative LV shortening, equivalent to normalizing MAPSE ... -
Strain rate imaging og the left ventricle by ultrasound: Feasibility, clinical validation and physiological aspects
Støylen, Asbjørn (Dissertations at the Faculty of Medicine; 192, Doctoral thesis, 2001) -
Ultra-high frame rate tissue Doppler imaging, technical feasibility and first clinical experiences
Lervik, Lars Christian Naterstad (Doctoral theses at NTNU;2017:332, Doctoral thesis, 2017)