Abstract
The appearance of the mitral orifice in different projections during angiography is described. The movement of the valvular apparatus, the outlines of the fused structures, mobility of the annulus fibrosus, and pathologic changes in the chordae tendinae may be observed in mitral stenosis. Mitral incompetence may be diagnosed by the demonstration of regurgitation through the orifice in systole and by systolic reflux of the pulmonary veins.