Assmann, P.E.M-T.

infarction motion wall motion patient analysis study echocardiography model function wall motion abnormalities figure system ejection fraction variability method value volume ventricle circulation echocardiogram wall motion analysis apical heart echocardiographic dilation lv dilation cardiol ejection subject abnormality measurement result fraction endocardial lv function fixed-reference system contour infarct size floating-reference system comparison right effect lv volumes roelandt infarct roelandt jr detection systole increase sensitivity endocardial apex group diagnosis extracardiac motion cardioi region rupture change index model i difference respiration disease slager cj end systole septum end diastole displacement floating-reference artery disease phase septal rotation assmann end-diastolic slager electrocardiogram contrast reference fixed-reference