VALVULAR ANATOMY
AORTIC VALVE
- The main coronary trunks can be considered to lie in one of two orthogonal planes
- The LAD and PDA lie in the plane of the interventricular septum,
- RCA and Circumflex coronary trunks lie in the plane of the atrioventricular valves
- LAO 60° Projection: is looking down the interventricular septum plane, with the AV valves plan seen en face
- RAO 30° Projection: is looking down the AV valves plan, with the interventricular septum plan seen en face