Comparative Analysis of Methods to Induce Myocardial Infarction in a Closed-Chest Rabbit Model

Figure 4

Echographic assessment of left ventricular ejection fraction. Left ventricular measurements are made with the M-mode. Both ventricular diameters (systolic and diastolic) are measured from the leading edge to leading edge of each interface, and LVEF by Teichholz is then calculated (a). Ventricular volumes are calculated in the two orthogonal apical views: four-chamber (b) and (c) biplane Simpson. Left ventricular endocardium is traced in end-diastole and end-systole in both views.

(a)

(b)

(c)