Hypoplastic left heart syndrome: color Doppler sonographic and magnetic resonance imaging features in utero.

A 26-year-old Japanese woman, gravida 2, para 1, was referred to our ultrasonography clinic at 27 weeks' gestation, because of a suspected fetal heart anomaly. The hemodynamic examination, specific for hypoplastic left heart syndrome and obtained with color Doppler sonography, gave a clue to an accurate diagnosis of this entity. Moreover, the use of magnetic resonance imaging provided information complementary to the sonographic findings. The sophisticated type of fetal cardiac examination with color Doppler sonography and magnetic resonance imaging was very effective to interpret hypoplastic left heart syndrome with total anomalous pulmonary venous return. An accurate prenatal diagnosis of congenital heart anomalies is useful for obstetrical management.