Chong Chiet Sing, Lee Heowpueh, Kumar A Senthil
Institute of High Performance Computing, Singapore.
J Craniofac Surg. 2006 Mar;17(2):344-52. doi: 10.1097/00001665-200603000-00024.
Cranioplasty is the procedure that repairs holes or defects in the skull with cranial implants. When the bone from the hole is missing, damaged, or infected, the defect needs to be covered with an artificial plate to protect the brain. In this paper, a hole-repairing algorithm is developed to aid in shaping artificial plates for Cranioplasty, by describing a method for filling holes in defective biomodels with unstructured triangular surface meshes or in stereo-lithography format. The resulting patching meshes interpolate the shape and density of the surrounding mesh. The steps in repairing a hole include hole identification, hole triangulations using Genetic Algorithm optimization, and a customized advancing-front meshing technique using surface approximations based on a Quartic Bézier patch/surface.
颅骨修补术是一种用颅骨植入物修复颅骨孔洞或缺陷的手术。当孔洞处的骨头缺失、受损或感染时，需要用一块人造板覆盖缺损处来保护大脑。在本文中，通过描述一种用非结构化三角形表面网格或立体光刻格式填充有缺陷生物模型中的孔洞的方法，开发了一种孔洞修复算法，以辅助颅骨修补术的人造板塑形。生成的修补网格对周围网格的形状和密度进行插值。修复孔洞的步骤包括孔洞识别、使用遗传算法优化进行孔洞三角剖分，以及使用基于四次贝塞尔面片/曲面的表面近似的定制前沿推进网格划分技术。
