medical professionals — including OB-GYNs — who may not be trained in prenatal ultrasound,” Lam-Rachlin said. “That accounts for why the ability to detect congenital heart defects is still quite low, ...

Further research is needed to determine whether the use of ultrasound markers combined with biochemical markers can reliably detect fetal Down syndrome. Until further data are available ...

Budd-Chiari syndrome (BCS) is a group of rare conditions in which veins in the liver become blocked. An ultrasound for BCS may show atypical, narrowed, or potentially blocked veins inside the liver.

This story was featured in The Must Read, a newsletter in which our editors recommend one can’t-miss story every weekday. Sign up here to get it in your inbox. “Can you sing?” Aaron Pierre ...