The 12 week scan: transabdominal and transvaginal ultrasound

This ultrasound video demonstrates application of transvaginal and transabdominal ultrasound for early pregnancy anomaly scan Early pregnancy anomaly scan (EPAS) is the term proposed to describe detailed examination of fetal anatomy at 11-13 weeks' gestation. It is essential to use both transvaginal scan (TVS) and transabdominal scan (TAS) for EPAS because the combination of those scanning techniques is superior than sole use of one of the approaches. The most important preference of the combined TVS/TAS a