Diagnosis of aneurysm of the cardiac septal membranous portion in cineangiocardiography

Altogether 20 patients with aneurysm of the cardiac membranous septum (AMS) were examined. Biplane cineangiocardiography (CACG) of the left ventricle was performed in the left oblique position permitting the detection of AMS in 17.8% of the patients with the suspected interventricular septal defect (IVSD). Heart diseases were observed in all the patients, in 90% they were accompained by IVSD in the cardiac wall. AMS regular contours and a wide base sings of true AMS. A narrow base and irregular shape were indicative of false AMS. Slight aortic transposition was noted in 1/4 of the patiens with AMS