[Assessment to fixed and variable ROI (region-of-interest) settings in the determination of left ventricular ejection fraction by multiple gated cardiac pool imaging: the benefit of variable ROI setting].
The accuracy of left ventricular ejection fractions (EF) determined by multiple gated cardiac pool imaging (RI-EF) and by M-mode echocardiography (Echo-EF) (Teichholz's method) was evaluated by comparing with those derived from angiocardiography (LVG-EF) in 19 patients including 9 with myocardial infarction, 3 with rest angina, 2 with effort angina, 2 with valvular disease, 1 with hypertrophic cardiomyopathy, 1 with congestive cardiomyopathy and 1 with hypertensive heart. Measurement of RI-EF was carried out by the fixed ROI method using a single end-diastolic ROI, and the variable ROI method where end-diastolic and end-systolic ROI were used.
D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000503:physiopathology; D002302:Cardiac Output; D002312:Cardiomyopathy, Hypertrophic / Q000503:physiopathology; D004452:Echocardiography / Q000379:methods*; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006349:Heart Valve Diseases / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000150:complications; D008297:Male; D008722:Methods; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology; D011877:Radionuclide Imaging; D013318:Stroke Volume