aVR aVL aV℉ V5 1226/84
■ Echocardiography. Two-dimensional and Doppler forms of echocardiography are useful in assessing the degree of impairment of left ventricular function and for excluding concomitant valve or pericardial disease.In addition to examining all four cardiac valves for evidence of structural or functional abnormalities,echocardiography allows evaluation of the size of the ventricular cavity and thickness of the ventricular walls.A pericardial effusion may be demonstrated on occasion.Doppler studies are useful in delineating the severity of mitral(and tricuspid)regurgitation.Combining echocardiography with dobutamine infusion may identify patients with left ventricular dysfunction due to coronary artery disease by demonstrating provocable regional differences in wall motion and thus distinguish them from patients with idiopathic DCM
◼ Echocardiography. Two-dimensional and Doppler forms of echocardiography are useful in assessing the degree of impairment of left ventricular function and for excluding concomitant valve or pericardial disease. In addition to examining all four cardiac valves for evidence of structural or functional abnormalities, echocardiography allows evaluation of the size of the ventricular cavity and thickness of the ventricular walls. A pericardial effusion may be demonstrated on occasion. Doppler studies are useful in delineating the severity of mitral(and tricuspid) regurgitation. Combining echocardiography with dobutamine infusion may identify patients with left ventricular dysfunction due to coronary artery disease by demonstrating provocable regional differences in wall motion and thus distinguish them from patients with idiopathic DCM