The Structural and Dynamic Recognition of Discrete Subaortic Stenosis by Real-Time Three-dimensional Transthoracic Echocardiography

Abstract

Discrete subaortic stenosis is a rare condition to cause left ventricular outflow obstruction. It is sometimes difficult to diagnose it because conventional transthoracic echocardiography may fail to show its 3-dimensional feature. We document the feasibility of on-line 3-dimensional transthoracic echocardiography, by which we can obtain the important 3-dimensional structural and dynamic information of discrete subaortic stenosis.