Objective To help elucidate the mechanism of action of the Arabin cervical pessary in pregnancies at high risk for preterm delivery. Methods

In the second half of pregnancy, fetal density varies with gestational age. Fetal weight estimates by using fetal MR imaging are better than those by using prenatal US.

Objective To assess prospectively the use of fourdimensional (4D) spatiotemporal image correlation (STIC) in the evaluation of the fetal heart at 11-14 weeks' gestation. Methods

Objective To prospectively assess the contribution of a high-frequency linear transducer and of moving target indicator (MTI) filtered color flow mapping in the visualization

Objective To determine the feasibility of postmortem computed tomographic (pm-CT) angiography for fetal heart evaluation. Methods Following termination of pregnancy (TOP) or intrauterine fetal death (IUFD) beyond