Assessment of the fetal thymus by two‐ and three‐dimensional ultrasound during normal human gestation and in fetuses with congenital heart defects

Abstract

2D-US and 3D-US are useful tools for evaluation of the size and volume of the human fetal thymus through gestation. Fetal TV by 3D-US seems to reflect normal development of the thymus in utero better than do 2D-US measurements. Lower TV should be expected in association with CHDs.