Correlation of weight estimation in large and small fetuses with three-dimensional ultrasonographic volume measurements of the fetal upper-arm and thigh: A preliminary report.

Objective: To determine the correlation of measuring fetal upper-arm and thigh volume using three-dimensional ultrasonography with weight estimation in large and small fetuses.

Material And Method: The authors included 46 pregnant women admitted for delivery in the Labor Room at Srinagarind Hospital, Khon Kaen University, between February 1 and September 30, 2004. Inclusion criteria were: 1) singleton pregnancy; 2) delivery within 48 hours after study; 3) estimation birthweight < 2,500 g (small fetuses group: n = 22) or > 3,500 g (large fetus group: n = 24).