We obtained the following results by reviewing the radiographic findings of 15 cases of Sinus Valsava rupture who were diagnosed surgically at Seoul National University Hospital sined 1979. 1. Among distribution was from 15 years to 40 years with the mean age of 24 years. Among the 15 cases, 9 cases were male and 7 were female. 2. Ruptured sinus is right coronary sinus projecting to right ventricle in all 15 cases. Combined diseases are ventricular septal defect in 12 cases, Aortic Calcular heart disease in 4 cases, and narrowing of right ventricular outflow tract in 2 cases, and aneurysmal dilatation of right pulmonary artery in 1 case. 3. Chest X-ray findings were that of left to right shunt, i.e cardiomegaly, increased pulmonary vascularity but were normal in 3 cases. 4. Aortography showed sequential leakage of dye from right coronary sinus to right ventricle and finally to pulmonary artery in 9 cases, and in 9 cases of them the leakage is directly to right ventricular outflow tract without filling of sinus portion of them leakage is directly to right venricular outflow tract without filling of sinus portion of the ventricle., i.e.type 1. 5. The leakage was well shown in left ventricular diastolic phases and not shown in systolic phase. 6. Ventricular septal defects were not detected definitely in spite of taking left ventriculography. 7. Cineangiography is essential for detecting accurate site, degree and direction of sinus valsalva rupture and other associated cardiac abnormality.