A NEW METHOD FOR EVALUATING RIGHT-VENTRICULAR DIMENSIONS AND VOLUME BY CINEANGIOGRAPHY

The aim of the present study was to establish a new method to evaluate the right ventricular dimensions and volume. Biplane right ventriculo graphy of steep left anterior oblique view (LAO) and right anterior ob lique view perpendicular to LAO were performed in 32 patients. The rig ht ventricular volume and ejection fraction calculated from the three axial dimensions of the right ventricular cavity (the septum-free wall dimension, the; anterior-posterior dimension, and either the long axi s dimension or the tricuspid valve-apex dimension at end-diastole and end-systole) were well correlated to those from Simpson's method. In c onclusion, we developed a new method for estimating right ventricular dimensions and volume.