biparietal diameter


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Related to biparietal diameter: occipitofrontal diameter

bi·pa·ri·e·tal di·am·e·ter

the diameter of the fetal head between the two parietal eminences.

biparietal diameter (BPD)

the transverse distance between the protuberances of the two parietal bones of the skull.

bi·pa·ri·e·tal di·am·e·ter

(bī'pă-rī'ĕ-tăl dī-am'ĕ-tĕr)
The diameter of the fetal head between the two parietal eminences.

biparietal diameter

Abbreviation: BPD
The transverse distance between the parietal eminences on each side of the head (about 9.25 cm).
See also: diameter
References in periodicals archive ?
The fact that in our study benzene levels exhibited associations with biparietal diameter assessed at the end of the first trimester indicates that air pollution effects might manifest even earlier in pregnancy.
Stronger effects of maternal smoking among male compared with female fetuses have also been reported, using either birth weight or biparietal diameter assessed by ultrasound as the outcome (Zaren et al.
05), biparietal diameter (116 [+ or -] 9 mm for males vs 115 [+ or -] 10 mm for females; P >0.
The present findings constitute the first observation of detectable S100B concentrations in amniotic fluid in the second trimester of pregnancy that also show a statistically significant relationship with gestational age and ecographic parameters such as head circumference and biparietal diameter.
The current study's simpler approach rests on the fact that biparietal diameters and femur lengths mainly are used to set gestational age in the traditional equations while abdominal circumference does "the meat of the work towards estimating weight," Dr.
At 26 weeks, triplets essentially matched singleton measurements of biparietal diameter (6.