fig46

Figure 46. Echo-Doppler studies in parasternal long-axis (A, D) and apical four-chamber (B, C) views of a ventricular septal defect in the process of spontaneous closure. Note the aneurism (Anu) seen by two-dimensional echo (A-C). Tiny residual shunt (RS) is seen by color flow imaging (C). There is high Doppler velocity (4.3 m/s) by continuous wave Doppler (D) suggesting that the residual defect is small. Ao: Aorta; LA: left atrium; LV: left ventricle; RV: right ventricle.