How can fetal development be evaluated using ultrasound?

Fetal development can be evaluated through ultrasound primarily by measuring anatomical structures at specific developmental milestones. This method allows sonographers to visualize the fetus in real-time and assess its growth and development by observing key features such as the size of the head, abdominal circumference, and limb measurements. These anatomical measurements can help determine if the fetus is growing at a normal rate and identify any potential abnormalities or developmental issues.

In addition to measuring anatomy, ultrasound also provides insights into the gestational age of the fetus by comparing these measurements to established norms for various stages of pregnancy. This assessment is critical for monitoring fetal health and making decisions regarding maternal care and delivery. Other options mentioned do not focus directly on evaluating fetal development through ultrasound. For instance, monitoring maternal heart rate or weight gain pertains more to the health of the mother, while checking blood flow in the umbilical cord, although important, is a different aspect of fetal assessment that does not directly involve measuring anatomical growth.