Determination of right ventricular wall thickness by echocardiogram.

Right ventricular wall-thickness measurements were performed by echocardiography and at necropsy in 25 patients. Correlations were made and found to be good in all subjects (r = .82). The echocardiographic technique was successful in separating nine patients with right ventricular hypertrophy from 16 patients without right ventricular hypertrophy at necropsy. The diagnosis of right ventricular hypertrophy by ECG correlated poorly with necropsy and echocardiographic findings. Right ventricular wall thickness can be accurately measured by echocardiography.