Department of Mechanical Engineering, Kyung Hee University, Yongin, Republic of Korea.
Comput Biol Med. 2011 Jul;41(7):421-6. doi: 10.1016/j.compbiomed.2011.03.016. Epub 2011 Jun 8.
Three-dimensional patient-specific bone models have been used in computer-aided planning and biomechanical analysis of orthopaedic surgeries. Reconstruction methods using X-ray images have been developed recently. However, these reconstruction methods have limited ability to generate femur models with severe rotational deformities. In this study, a new X-ray-based reconstruction method was proposed using the free form deformation method with two X-ray images and three CT images. The obtained femur model is closer to a CT-based 3D femur model in comparison with the reconstruction method using only X-ray images. This method will have benefits for many clinical and biomechanical applications.
三维个体化骨模型已被用于计算机辅助骨科手术规划和生物力学分析。最近已经开发出了使用 X 射线图像的重建方法。然而，这些重建方法在生成严重旋转畸形的股骨模型方面能力有限。在这项研究中，提出了一种新的基于 X 射线的重建方法，该方法使用自由形态变形方法结合两幅 X 射线图像和三幅 CT 图像。与仅使用 X 射线图像的重建方法相比，所获得的股骨模型与基于 CT 的三维股骨模型更为接近。这种方法将对许多临床和生物力学应用有益。
