Physics-Based Simulation of Surgical Fields for Preoperative Strategic Planning
Physics-Based Simulation of Surgical Fields for Preoperative Strategic Planning
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DOI：
10.1007/s10916-006-9021-4
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发表时间：
2006-10
影响因子：
5.3
通讯作者：
M. Nakao;T. Kuroda;H. Oyama;G. Sakaguchi;M. Komeda
中科院分区：
文献类型：
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作者：
M. Nakao;T. Kuroda;H. Oyama;G. Sakaguchi;M. Komeda
虽然仔细规划手术入路是手术成功的关键，但传统的规划和模拟工具无法支持详细的讨论。该问题源于难以估计由一系列外科手术（如切割和变形）提供的软组织的复杂物理行为。本文提出了一个自适应的基于物理的框架，模拟交互式切割和准确的变形虚拟身体，并进行术前规划，以支持战略讨论。我们专注于有限使用的两个模型：一个基于粒子的模型和一个基于FEM的模型，考虑在不同情况下所需的质量和性能。基于FEM的切口变形准确地产生估计的手术野。在此基础上，开发了一个战略规划系统，用于支持手术入路的决策，使用手术野的三维表示。我们将一个主动脉瘤病例的临床CT数据集应用于该系统。一些实验和可用性测试证实，该系统有助于把握靶器官的3D形状和位置，并对患者特定的手术入路进行详细讨论。
Although careful planning of surgical approach is a key for success of surgery, conventional planning and simulation tools cannot support detailed discussion. This issue is derived from the difficulty of estimating complex physical behavior of soft tissues provided by a series of surgical procedures like cutting and deformation. This paper proposes an adaptive physics-based framework that simulates both interactive cutting and accurate deformation on virtual bodies, and performs preoperative planning for supporting strategic discussion. We focus on limited use of the two models: A particle-based model and an FEM-based model considering required quality and performance in different situations. FEM-based deformation of incision accurately produces estimated surgical fields. Based on the framework, a strategic planning system was developed for supporting decision of surgical approach using 3D representation of the surgical fields. We applied clinical CT dataset of an aortic aneurysm case to the system. Some experiments and usability tests confirmed that the system contributes to grasping 3D shape and location of the target organs and performs detailed discussion on patient-specific surgical approaches.