eleven patients ( three with coronary artery disease , one with mitral valve prolapse , one with atrial septal defect , two with rheumatic mitral valve disease , one with rheumatic aortic valve disease , and three normal individuals ) underwent determination of global left ventricular ejection fraction ( lvef ) by 1 ) nuclear stethoscope ( cardiac probe ) , 2 ) tc-99m-labeled-erythrocyte gated nuclear angiocardiographic gamma camera-computer techniques , and 3 ) single plane rao contrast left ventriculography -- all within a 6-hour period without concurrent drug intervention .
C0018817
atrial septal defect
C0018787
cardiac