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首页> 外文期刊>Radiology >An automatic model-based system for joint space measurements on hand radiographs: initial experience.
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An automatic model-based system for joint space measurements on hand radiographs: initial experience.

机译：一个基于模型的自动系统，用于在手部X射线照片上进行关节空间测量：初步经验。

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摘要

This ethics committee-approved pilot study was performed with informed consent. A Web-based service that was developed for automated measurement of joint space and automatic analysis of radiographs was tested prospectively. A total of 160 metacarpophalangeal joint spaces were measured in 20 patients (average age, 48 years; age range, 18-89 years; 16 women) suspected of having rheumatoid arthritis or osteoarthritis. The technical success rate was 93%. The smallest detectable difference in repeated automatic joint space width measurements varied from 0.08 to 0.31 mm, and the coefficient of variation was 2%-7%. Compared with the reference standard (interactive segmentation of the joint space widths) measurements, results were within a mean error of 0.19-0.40 mm. The proposed Web-based service enables reproducible joint space measurements to be obtained in metacarpophalangeal joints with moderate erosive and osteophytic disease.
机译：该伦理委员会批准的试点研究是在知情同意下进行的。前瞻性地测试了基于Web的服务，该服务开发用于自动测量关节间隙和自动分析射线照片。在20名怀疑患有类风湿关节炎或骨关节炎的患者（平均年龄48岁;年龄范围18-89岁; 16名女性）中，总共测量了160个掌指关节间隙。技术成功率为93％。在重复的自动关节间隙宽度测量中，最小的可检测差异在0.08至0.31 mm之间变化，变异系数为2％-7％。与参考标准（关节间隙宽度的交互式分割）测量结果相比，结果在0.19-0.40 mm的平均误差范围内。所建议的基于Web的服务使得在患有中度糜烂和骨赘疾病的掌指关节中可以获得可重复的关节空间测量结果。

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