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New modalities for imaging the fetal heart.

Improvement in the prenatal diagnosis of congenital heart disease requires familiarity with advances ultrasound equipment and features and any new imaging methods that can effectively provide cardiac information from the fetus. This article discusses imaging the fetal heart with transvaginal ultrasound, Doppler ultrasound, intrauterine sonography, three-dimensional ultrasound (3DUS) and magnetic resonance imaging.