プロジェクションマッピングを用いた再建術中乳房形状差情報提示システム

DOI Web Site

書誌事項

タイトル別名
  • Shape Difference Information Presentation System Using Projection Mapping for Breast Reconstruction Surgery
  • プロジェクションマッピング オ モチイタ サイケン ジュッチュウ チブサ ケイジョウサ ジョウホウ テイジ システム

この論文をさがす

抄録

<p>Breast reconstruction surgery recovers the lost shape of the breast after mastectomy. However, a method to evaluate breast shape has not been established. Cosmetic evaluation of the breast shape is usually performed by the surgeon, and is therefore a subjective assessment. Moreover, no intraoperative navigation system is available for breast reconstruction surgery. To improve this situation, the present study proposes quantitative indicators of breast shape, and a support system for intraoperative breast reconstruction. First, the preoperative breast shape is measured using a 3-dimensional (3D) sensor (Kinect V2, Microsoft). Using the measured 3D breast shape, the local shape difference between the breast prior to mastectomy and the breast during reconstruction is converted to a 2-dimensional map, i.e., a shape difference map. The shape difference map is converted into 400 (20×20) grid squares for quantification of the local volume difference of the breast prior to mastectomy and after reconstruction. To present the shape difference map more intuitively to the surgeon, we then developed a system that projects the shape difference information onto the patient's body. The projection is performed by projection mapping using a tri-axial camera gimbal (Crane-M, Zhiyun) and a handy projector (ZenBeam E1, ASUS). Finally, the projection mapping data are registered using dedicated software. The developed system was evaluated on a phantom (a manikin simulating a human patient). Registration markers were placed on the upper, left-lower, and right-lower parts of the breast. After registering the projection data, the pre- and post-reconstruction data were compared using 3D viewer software (3D Builder). The registration time and positional error from the registration markers were evaluated during the experiment. The evaluation results were then analyzed using a nonparametric test. The validation experiment confirmed a significant difference between the viewer software and the developed registration software (p<0.01), suggesting that the system provides a useful quantitative index for breast shape evaluation.</p>

収録刊行物

  • 生体医工学

    生体医工学 56 (4), 141-148, 2018-08-10

    公益社団法人 日本生体医工学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ