Axial oblique projections--volumetric studies into left ventricular cast specimens of man.

Single-plane and biplane cineradiography was applied in various axial oblique projections to 15 cast specimens of the left ventricle. Their volumes were calculated by the area-length method. In these model studies, sufficiently accurate volume calculation proved to be practicable by sitting-up projection (SUP), hepatoclavicular representation (HCP), and long-axis representation with 40 degrees angulation in the anterior-posterior plane (SLP2C2). The latter representation gave the smallest deviations from true volume.