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首页> 外文期刊>Skeletal radiology >Comparison of acetabular version angle measurements between prone and reformatted supine computed tomography images
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Comparison of acetabular version angle measurements between prone and reformatted supine computed tomography images

机译：俯卧位和重新格式化后仰卧位计算机断层扫描图像之间的髋臼版本角度测量结果的比较

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Purpose: To compare acetabular version angle measurements of CT scans in the prone and reformatted supine positions. CT acetabular version angle measurements have previously been done in the prone position to correct for pelvic tilt. With the advent of multidetector CT, recent studies have evaluated acetabular version angles measured in the supine position. To our knowledge, a comparison between these two approaches has not been performed. Study design: Case series in which consecutive CT urography studies of 49 adult patients performed in both prone and supine positions were retrospectively reviewed, and acetabular version angles of both hips measured. Method: Retrospective review of 49 consecutive CT urography studies performed in both prone and supine positions was done, and acetabular version angles of both hips were measured. Two radiologists measured the acetabular version angles independently. Multiplanar reformation of the supine CT images was performed to compensate for pelvic tilt and rotation prior to angle measurements. Results: There was excellent interobserver agreement between the two readers (ICC = 0.90). Acetabular version angle measurements from the prone CT images were larger compared to reformatted supine images (24.0 and 21.3, respectively, p < 0.0001), with greater angles found in women. There was strong correlation between supine and prone acetabular version angle measurements with a Pearson correlation coefficient of 0.743. Conclusions: Acetabular version angles measured from prone and reformatted supine CT images show strong correlation but are significantly different with larger angles obtained from the former and in women; clinical implications of these findings may require further study in other to determine the best method of version angle measurement. CT acetabular version angle measurement is also reliable with excellent interobserver correlation.
机译：目的：比较俯卧位和重新格式化后仰卧位CT扫描的髋臼型角测量。先前已在俯卧位进行了CT髋臼版本角度测量，以校正骨盆倾斜。随着多探测器CT的出现，最近的研究已经评估了仰卧位测量的髋臼型角。据我们所知，尚未对这两种方法进行比较。研究设计：回顾性分析了49例成年患者在俯卧和仰卧位进行的连续CT泌尿系统造影研究，并测量了双髋髋臼后倾角度的病例系列。方法：回顾性回顾了49个连续的CT尿路造影研究，分别在俯卧位和仰卧位进行，并测量了两个髋臼的髋臼型角。两名放射科医生分别测量了髋臼的倾斜角度。进行仰卧位CT图像的多平面重建，以补偿角度测量之前的骨盆倾斜和旋转。结果：两位读者之间的观察员之间达成了极好的共识（ICC = 0.90）。与重新格式化的仰卧位图像相比，俯卧CT图像的髋臼翻折角度测量值更大（分别为24.0和21.3，p <0.0001），女性的角度更大。仰卧位与俯卧髋臼位角度测量值之间具有很强的相关性，皮尔逊相关系数为0.743。结论：俯卧位和重新格式化后仰卧位CT图像测量的髋臼翻折角显示出很强的相关性，但与前者和女性获得的更大角度之间存在显着差异。这些发现的临床意义可能需要在其他方面进行进一步研究，以确定最佳的倾角测量方法。 CT髋臼版本角度测量也具有出色的观察者间相关性，因此也是可靠的。

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