Aortic arch anomalies may have major clinical significance after birth. Prental diagnosis of an aortic arch anomaly creating a vascular ring was detected by two-dimensional ultra-sound and is presented in this case report.

This report suggests that in the absence of aortic regurgitation, Doppler peak and mean gradients are useful predictors of catheter peak-to-peak aortic stenosis gradients >50 mm Hg; however, in the presence of aortic regurgitation, the predictive value diminishes dramatically, but improves when electrographic data are incorporated. We present potentially useful equations to help predict the need for interventional catheterization for valvar aortic stenosis.

Congenital diverticula of the right ventricle are extremely rare and may be life threatening. The ultrasound demonstration and recognition. of such an abnormality and the important differential features are discussed.