Breast Shape Measurement Based On 3D Measurement Technology Research

Background:Quantification of the complex breast region can be very helpful in breast surgery. However, because of the special nature of the breast tissue, there is still no generally recognized method for breast morphology measurement. Three-dimensional (3D) body surface imaging represents a new alternative for breast measurement.Purpose:1. To complete the breast morphology data of Chinese adult female.2. To compare the breast volume calculated by3D scanning and Qiao’s formula.3. To compare the breast volume calculated by3D scanning and water displacement in the operation.Methods:This study was divided into three parts. Part1:27anthropomorphic measurements were obtained on108adult women.3D imaging was used to collect the breast volume. Then we carried out the statistical analysis and use multiple stepwise linear regression to determine the formula for calculating breast volume. Part II:Breast volume calculations were performed using a3D scanner and Qiao’s formula. Then regression analyses were performed. PartⅢ:We obtained the3D imaging on11breasts before the modified radical mastectomy. The volume of the mastectomy specimen was determined using water displacement. The volume calculated by3D imaging was then compared with the intra-operative volume.Results:Part I:The final regression model incorporated the variables of breast projection, radius, chest circumference difference, and2variables determining the breast position. Part II:Breast volume calculations by Qiao’s formula was significantly smaller than3D imaging (t=-8.941, p<0.001), and the two methods showed a good agreement (r=0.925). PartⅢ:The volume calculated by3D imaging was generally smaller than the intra-operative volume.Conclusions:We derived some formulae to calculate breast volume in clinical work, and also modified Qiao’s formula. The volume of the mastectomy specimen was influenced by the surgical procedure.