Figure 11.
The virtual dissections are made from a data set obtained using multidetector computed tomography in a patient undergoing investigation for coronary arterial disease. They show how each outflow tract is formed in a tripartite fashion, with the components represented by the intrapericardial arterial trunk, the arterial root, and the subvalvar outflow tract, respectively. Note that, in the right ventricle (panel A), the subvalvar component is a completely muscular infundibular sleeve, whereas in the left ventricle (panel B), the posterior wall of the subvalvar area is formed by fibrous continuity between the leaflets of the aortic and mitral valves.
