Research Article
The Ultrasonic Microsurgical Anatomical Comparative Study of the CHD Fetuses and Their Clinical Significance
Figure 2
Ventricular septal defect (VSD) (32 w). (a) The apex four-chamber echocardiography section. (b) The apex four-chamber sectional anatomy. LA: left atrium; LV: left ventricle; RA: right atrium; RV: right ventricle; PFO: patent foramen ovale; IVS: interventricular septum; LVIT: left ventricular inflow tract; RVIT: right ventricular inflow tract; MSD: membranous septal defect.
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