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Page 24 of 41 Rao. Vessel Plus 2022;6:25 https://dx.doi.org/10.20517/2574-1209.2021.92
Figure 41. Echo-Doppler studies in parasternal long (A) and short (B) axis and apical four-chamber (C) projections of the ventricular
septum illustrating a perimembranous ventricular septal defect (VSD) with a shunt from the left ventricle (LV) to the right ventricle
(RV) by color (A, B) and continuous wave (D) Doppler. The presence of an aneurysm (Anu) in C is suggestive of progression to
[16]
spontaneous closure. A Doppler flow velocity in excess of 2 m/s (D) suggests that the VSD is restrictive. Reproduced from Ref. .
Figure 42. Echocardiographic study with color flow Doppler in a parasternal long-axis view illustrating a perimembranous ventricular
septal defect (VSD) with left-to-right shunt. Note turbulent flow across the VSD. Aorta (Ao), left atrium (LA), and left ventricle (LV)
[3]
are labeled. Modified from Ref. .
