Optimization of Esophageal Ultrasound under Artificial Fish Swarm Algorithm and Its Adoption in Treatment of Ventricular Septal Defect

Figure 6

Comparison of cardiac function between the two groups of patients before and after surgery. (a) Comparison of the left ventricular ejection fraction before and after surgery, (b) comparison of the left ventricular short-axis shortening rate before and after surgery: (A) before surgery, (B) first review after surgery, (C) second review after surgery, (D) third review after surgery, and (E) fourth review after surgery.

(a)

(b)