Fifty patients with clinically suspected mitral stenosis were studied were studied by selective left ventricular cineangiography. The essential features of mitral value stenosis appearing at left ventricular cineangiography are well estabilished. such as 1) domed apearance of mitral value ; 100% 2) Subvalvular filling defects or distortion ; 75.9% 3) Negative jet flow : 72.2% 4) Posterobasal bulge or hypokinesia ; 57.4% 5) Valvular defomity ; 55.6% Characteristic doming of mitral value in diastole with additional findings are diagnostic of mitral stenosis.