儿童股骨三维立体模型的构建

目的：探讨利用CT和MRI数据，结合MIMIcs和Geomagic软件构建儿童完整的股骨三维立体模型的方法。方法：采集一名儿童志愿者的股骨CT和HMRI数据，通过MIMICS软件分别重建出CT数据的股骨和MRI数据的软骨模型，并通过逆向工程软件Geomagic进行配准，构建完整的股骨骨骼与软骨的模型。结果：通过MIMICS成功将MRI数据中的软骨分割建模，并在Geomagic中与CT生成的股骨骨骼模型进行配准，然后将复合模型返回CT中进行逐层图像修饰，并验证MRI软骨图像分割的效果，最后生成骨一软骨的三维立体股骨模型。结论：MIMICS的图像分割以及Geomagic图像配准技术完美结合，使得重建的股骨复合模型更为真实，为股骨精确的形态学测量以及临床治疗方案的选择提供了参考。

Three Dimensional Reconstruction of Femur of Child

Objective： In order to reconstruct a visual model of femur with cartilage in child by methods of application of MIMICS and Geomagic software acccording to CT and MRI. Methods： CT and MPd data of femur were collected from a volunteer child, model were reconstructed from CT and MRI data respectively by MIMICS and saved with style of stl. And then, the stl data were imported into Geomagic software for registration. After registration being done, the stl data were imported back into MIMCIS for advanced management as re-segementation, boolean operation and reconstruction. In this way, model of cartilage was completely divided. Finally, the two part were loaded in Geomagic for registration. Results： A three-dimensional visual multiple model of femur with cartilage was reconstructed after series segementation, edition in MIMICS and relax, sandpaper concomitant of registration in Geomagic. Conclusion： According to combined application of the segmentation of MIMICS and registration of Geomagic, the visual femur of child looks more real, providing accurate methods of morphological measurements and reference for clinical treatment.