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A novel CT based algorithm for accurate estimation of component position in THR

机译：一种基于CT基于CT的算法，用于准确估计THR的组件位置

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Introduction: Precise knowledge of implant position is fundamental to analysis of THR. Post operative and follow up radiographs do not give an accurate estimation of inclination and especially anteversion of the acetabular and the femoral components. We report a novel CT based algorithm for precise 3D estimation of component position with a low dose of radiation. These measurements were based on Anterior Pelvic Plane introduced by Jaramaz et al(1) for computer assisted cup placement. Traditional CT scans of the pelvis was around 10 mSv, equivalent to about 4.5 years of background radiation (average UK background radiation is 2.2 mSv per year), the Perth protocol for lower limb CT scans has a dose of 2.5 mSv ( Perth)(2). Our protocol has been modified to bring down the radiation dose while allowing accurate estimation of the component position.
机译：简介：精确的植入位置知识是对THR分析的基础。术后操作和后续射线照片不会准确估计倾斜，尤其是髋臼和股骨部件的抗逆转。我们报告了一种基于CT基于CT基于CT的算法，其具有低剂量辐射的组分位置的精确3D估计。这些测量基于由Jaramaz等人（1）引入的计算机辅助杯放置的前骨盆平面。骨盆的传统CT扫描约为10 MSV，相当于约4.5岁的背景辐射（平均英国背景辐射每年2.2 msv），下肢CT扫描的珀斯方案具有2.5 msv（珀斯）的剂量（珀斯）（2 ）。我们的协议已被修改为降低辐射剂量，同时允许准确地估计部件位置。

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