2A3-2 パーティクルフィルタによる人工膝関節動態解析(OS11:医療・ヘルスケア応用(2))

概要

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Total knee arthroplasty (TKA) is an operation that substitutes artificial knee joint of injured knee joint. The 3D kinematics of the postoperative artificial knee joint is focused in the research area of orthopaedics. There are some studies based on 2-D/3-D image registration of 2-D fluoroscopy images and 3-D geometric model. However, these conventional studies are designed for still statics image analysis. This article proposes a method for analyzing 3D knee joint kinematics by using 2-D/3-D image registration with particle filter method. The method can analyze 3D knee joint kinematics with no outlier in inter-frame. By applying the method to computer-synthesized digital radiograph (DR) images, the estimation accuracy was evaluated. In addition, the effectiveness of the method was validated by applying it to DR video of TKA applied knee joint.
一般社団法人日本機械学会の論文
2011-09-01