This animation demonstrates how an ultrasound identifies the solid and hollow areas of structures within a fetus.
Review Date:
7/4/2019
Reviewed By:
John D. Jacobson, MD, Professor of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda Center for Fertility, Loma Linda, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.