Modifying Soft Tissue Models: Progressive Cutting with Minimal New Element Creation
Modifying Soft Tissue Models: Progressive Cutting with Minimal New Element Creation
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DOI：
10.1007/978-3-540-40899-4_61
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发表时间：
2000-10
期刊：
影响因子：
--
通讯作者：
A. Mor;T. Kanade
中科院分区：
文献类型：
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作者：
A. Mor;T. Kanade
手术模拟是一种很有前途的技术，用于培训医学生和规划程序。这些仿真系统的一个主要要求是通过软组织模型生成逼真切割的方法。本文描述了切割软组织四面体模型的方法。切割表面遵循用户运动的自由形式路径，并生成一组最小的新元素来替换正四面体。交叉的元素被逐步切割，以最大限度地减少用户的运动和模型修改之间的滞后。线性有限元模型用于模拟软组织的变形。这些切割技术与基于物理的变形模型相结合，提高了手术模拟系统的准确性和适用性。
Surgical simulation is a promising technology for training medical students and planning procedures. One major requirement for these simulation systems is a method to generate realistic cuts through soft tissue models. This paper describes methods for cutting through tetrahedral models of soft tissue. The cutting surface follows the free form path of the user’s motion, and generates a minimal set of new elements to replace intersected tetrahedra. Intersected elements are progressively cut to minimize the lag between the user’s motion and model modification. A linear finite element model is used to model deformation of the soft tissue. These cutting techniques coupled with a physically based deformation model increases the accuracy and applicability of a surgical simulation system.