Fetal diagnosis of common arterial trunk with interrupted aortic arch using color power Doppler angiography.

We successfully visualized the brachiocephalic arteries and aortic arch in a fetus seen at 19 weeks of gestation with a common arterial trunk and interrupted aortic arch by means of color power Doppler angiography, a new diagnostic development of color Doppler echocardiography. Power Doppler imaging is more sensitive to the state of low flow in fetal vessels, thus providing better visualization of fetal vascular structures from an early gestational stage.