Fig. 11 Rotated aortic root in tetralogy of Fallot. A) Right anterior oblique (RAO) and B) cranially tilted left anterior oblique projections (LAO) of an antegrade aortogram show clockwise rotation of the root as viewed from the apex, bringing the right coronary artery (RCA) origin into a higher, more anterior position than usual, so that its origin is profiled in the RAO, rather than the LAO, projection.

Ao = aorta; LCA = left coronary artery

(Modified from: Freedom RM, et al. ² With permission of Futura Publishing Company, Inc.)