Pre and post quantitative evaluation system of 3D breast shape for breast reconstruction surgery

Abstract

Breast reconstruction is desired it would be operated immediate after mastectomy from the points of cosmetic figuration and QOL. However, there is an issue that cosmetic outcomes in surgery because quantitative evaluation index for three-dimensional shape of the breasts had not been established. So that we developed image processing system that is able to evaluate quantitatively the shape of patient's breasts using pre and postoperative 2D and 3D information. Firstly, a point group data is obtained by the scanning of a breast structure pre and post mastectomy using Kinect V2. After that, three-dimensional breast shape data were divided into small grid data and were used to calculating breast volume difference. The total difference information between pre and post mastectomy were expanded on a two-dimensional map image. For validation check of our method, we measured and analyzed the semi-sphere and calculated the error. Then, we evaluated this system with trial subjects.