نتایج جستجو برای: diastole
تعداد نتایج: 4129 فیلتر نتایج به سال:
We traced left ventricular contours, frame-by-frame throughout systole and diastole, of normal sinus beats from 30 degrees right anterior oblique ventriculograms from 32 normal patients. We separated both systole and diastole into 19 equal time intervals each and calculated regional lengths (R), normalized by both end-diastole length and relative time interval (T) in systole and diastole and di...
although systolic dysfunction is revealed as a prognostic factor in cardiac surgery , the role of diastolic dysfunction as a predictive factor is less evaluated. in this retrospective study from 872 patients that underwent isolated coronary artery bypass graft(jan 2008-feb 2009),388 patients had normal left ventricular ejection fraction (>50%). these are divided in two groups, group 1: 361 pati...
BACKGROUND Myocardial blood flow (MBF) varies throughout the cardiac cycle in response to phasic changes in myocardial tension. The aim of this study was to determine if quantitative myocardial perfusion imaging with cardiovascular magnetic resonance (CMR) can accurately track physiological variations in MBF throughout the cardiac cycle. METHODS 30 healthy volunteers underwent a single stress...
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