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-dimen-sional 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