Figure 2.

Ellipsoidal and semi‐ellipsoidal geometric models of the left ventricle (LV). The top row depicts the geometric model, the middle row provides the adjectives for each model used in this article, and the bottom row provides the corresponding equation for LV cavity volume. Models (A, C through E) are based on a full‐ellipsoid. The bullet method (B) combines and ellipsoidal bottom with a cylindrical top. Method (E) was championed by Dodge et al4, 5 but used an experimentally determined correction factor based upon human cadaver measurements (Eqn. (8)).