SymbolReconstructing a bone finite element model of human thoracolumbar spine based on CT images by using Mimics software

Abstract:

Directly reading the 210-layer of 0.65-mm-thick consecutive CT Dicom format images of human body thoracolumbar making use of 0.625-mm isotropous resolution thin layer scanning technique into the Mimics. Defining bone organization threshold, withdrawing each outline, partitioning each edge of layer picture, edited selectively and repaired by hole processing. After a redundancy data was cleaned, the thoracolumbar 3-D finite element geometry model was acquired. Then area mesh could be kept as the document Ansys named .lis as the suffix and be introduced into Ansys software directly to mesh body, and then transferred the body mesh to mimics to assignment son the basis of CT values, once again import Ansys to establish 3-D finite element model. After that, a realistic appearance and calculation accuracy 3-D bone finite element model of thoracolumbar was established. The results showed that applications of sophisticated CT scanning technique, the Dicom standard of images, Mimics software directly dock with Ansys software can directly assign values according to CT, which make the establishment of three-dimensional finite element model of human thoracolumbar spine faster and more accurate.

Li XL. Reconstructing a bone finite element model of human thoracolumbar spine based on CT images by using Mimics software. Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu 2009;13(39): 7619–7622.

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