Estimation of Right Ventricular Mass by Two-dimensional Echocardiography

Two echocardiographic methods were used to measure right ventricular mass. One of them used a bullet formula variant (5/24 π D1 D2 L). The second method used 3 endocardium segments measured in 3 2-dimensional echocardiographic planes (short axis of aortic valve and left ventricle, and 4-chamber view), and applied in the formula A = [(b1 + b2)/2] × h. Both formulas have shown good correlation with the true mass in 30 mongrel dogs (r = 0.869 with the segments formula and r = 0.819 with the bullet formula) and in 20 human patients before heart transplant (r = 0.810 and r = 0.836, respectively).