Simplified Heart Model

3. Simplified Heart Model

A simplified surface heart model (triangular mesh) is used to construct the tetrahedral mesh. Comparing with Figure 1, we can see there are four heart valves (aortic valve, pulmonary valve, mitral valve, and tricuspid valve) and one valve of foramen ovale.

Figure 1: Triangular Mesh

Simplified heart model.

Figure 2

Valves

(a) Aortic valve. (b) Tricuspid valve. (c) Pulmonary valve. (d) Mitral valve.

Figure 3

Value of foramen ovale.

In our finite element model of the human heart, the aortic valve, the tricuspid valve, the pulmonary valve, and the mitrial valve should have gaps between its cuspid components, which allow blood flow through the valves. We modified the original valve models (Figure 2) to obtain gaps.

Figure 4

Aortic valve. Tricuspid valve. Pulmonary valve.

Mitral valve.
Original valve of foramen ovale. Modified valve of foramen ovale.