计算机辅助颅骨三维植入物的规划与重建。

Computer-aided planning and reconstruction of cranial 3D implants.

作者信息

Gall Markus, Schmalstieg Dieter, Egger Jan

出版信息

Annu Int Conf IEEE Eng Med Biol Soc. 2016 Aug;2016:1179-1183. doi: 10.1109/EMBC.2016.7590915.

DOI:10.1109/EMBC.2016.7590915

Abstract

In this contribution, a prototype for semiautomatic computer-aided planning and reconstruction of cranial 3D Implants is presented. The software prototype guides the user through the workflow, beginning with loading and mirroring the patient's head to obtain an initial curvature of the cranial implant. However, naïve mirroring is not sufficient for an implant, because human heads are in general too asymmetric. Thus, the user can perform Laplacian smoothing, followed by Delaunay triangulation, for generating an aesthetic looking and well-fitting implant. Finally, our software prototype allows to save the designed 3D model of the implant as a STL-file for 3D printing. The 3D printed implant can be used for further pre-interventional planning or even as the final implant for the patient. In summary, our findings show that a customized MeVisLab prototype can be an alternative to complex commercial planning software, which may not be available in a clinic.

摘要

在本论文中，展示了一种用于颅骨三维植入物半自动计算机辅助规划与重建的原型。该软件原型引导用户完成工作流程，从加载和镜像患者头部以获得颅骨植入物的初始曲率开始。然而，单纯的镜像对于植入物来说是不够的，因为人类头部通常过于不对称。因此，用户可以进行拉普拉斯平滑处理，然后进行德劳内三角剖分，以生成外观美观且贴合的植入物。最后，我们的软件原型允许将设计好的植入物三维模型保存为STL文件用于3D打印。3D打印的植入物可用于进一步的介入前规划，甚至可作为患者的最终植入物。总之，我们的研究结果表明，定制的MeVisLab原型可以替代复杂的商业规划软件，而诊所可能没有这种商业软件。