2724 4d

Introduction. Three-dimensional (3D) and four-dimensional (4D) ultrasound have been proposed to be valuable tools for the examination of the fetal heart 1-52.The ultimate goal of 3D and 4D ultrasound is to improve the detection rates of congenital heart disease 53-63 by decreasing the dependency on operator skills required by two-dimensional (2D) ultrasound 64, 65. warnumber rekap 4d