A Computational Tool for Preoperative Breast Augmentation Planning in Aesthetic Plastic Surgery
A Computational Tool for Preoperative Breast Augmentation Planning in Aesthetic Plastic Surgery
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DOI：
10.1109/jbhi.2013.2285308
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发表时间：
2014-05-01
影响因子：
7.7
通讯作者：
Westermann, Ruediger
中科院分区：
文献类型：
--
作者：
Georgii, Joachim;Eder, Maximilian;Westermann, Ruediger
隆胸是2011年美国最常见的整容手术。尽管只有从市场上大量不同的假体尺寸和形状中选择正确的乳房植入体才能获得美观的手术结果，但由于缺乏客观评估工具，外科医生仍然依赖于视觉评估和其他主观方法进行手术计划。在本文中，我们提出了一个软件原型隆乳术模拟完全基于3-D表面扫描，从患者特定的有限元模型在半自动的过程中产生的发展。有限元模型用于使用物理软组织力学在术前模拟预期的乳房形状。我们的方法使用了一种基于所谓的位移模板的新型机制，对于特定的植入物形状和位置，该机制描述了各自的内部身体力。由于一个高效的数值求解器，我们可以提供即时的视觉反馈的模拟结果，因此，软件原型可以顺利地集成到医疗工作流程。所开发的用于美学隆胸手术规划的3-D计算工具的临床价值在患者特定的用例中得到证明。
Breast augmentation was the most commonly performed cosmetic surgery procedure in 2011 in the United States. Although aesthetically pleasing surgical results can only be achieved if the correct breast implant is selected from a large variety of different prosthesis sizes and shapes available on the market, surgeons still rely on visual assessment and other subjective approaches for operative planning because of lacking objective evaluation tools. In this paper, we present the development of a software prototype for augmentation mammaplasty simulation solely based on 3-D surface scans, from which patient-specific finite-element models are generated in a semiautomatic process. The finite-element model is used to preoperatively simulate the expected breast shapes using physical soft-tissue mechanics. Our approach uses a novel mechanism based on so-called displacement templates, which, for a specific implant shape and position, describe the respective internal body forces. Due to a highly efficient numerical solver we can provide immediate visual feedback of the simulation results, and thus, the software prototype can be integrated smoothly into the medical workflow. The clinical value of the developed 3-D computational tool for aesthetic breast augmentation surgery planning is demonstrated in patient-specific use cases.