超音波bpd的意思
"BP" in "BPd" stands for "Biparietal Diameter". This term is used in prenatal ultrasound to measure the diameter of the fetal skull, which is the distance between the two parietal bones. The biparietal diameter is an important measurement to assess the growth and development of the fetus during pregnancy. It is typically used to estimate the gestational age of the fetus and to monitor the baby's growth over time.