Figure 7.

Native valves three--dimensional orientation and display. (a) The aortic valve is viewed from the ascending aorta with the right coronary cusp located at the 6 o'clock position; (b) mitral valve is viewed from the left atrium with the aortic valve located at the 12 o'clock position. The anterior mitral valve leaflet is at the top and the posterior leaflet below; (c) pulmonic valve is viewed from the pulmonary artery with the anterior leaflet is located at the 12 o'clock position. (d) tricuspid valve is viewed from the right atrium with the septal leaflet located at the 6 o'clock position