Determination of left ventricular volumes by ultrasound.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000790:Angiocardiography; D002306:Cardiac Volume; D004452:Echocardiography; D006331:Heart Diseases / Q000175:diagnosis; D006352:Heart Ventricles / Q000033:anatomy & histology / Q000503:physiopathology; D006801:Humans; D008433:Mathematics; D008875:Middle Aged; D014463:Ultrasonography; D016276:Ventricular Function