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首页> 外文期刊>Journal of Digital Imaging >Digital Radiography Reject Analysis: Data Collection Methodology, Results, and Recommendations from an In-depth Investigation at Two Hospitals
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Digital Radiography Reject Analysis: Data Collection Methodology, Results, and Recommendations from an In-depth Investigation at Two Hospitals

机译：数字射线照相拒绝分析：两家医院深入调查的数据收集方法，结果和建议

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Reject analysis was performed on 288,000 computed radiography (CR) image records collected from a university hospital (UH) and a large community hospital (CH). Each record contains image information, such as body part and view position, exposure level, technologist identifier, and—if the image was rejected—the reason for rejection. Extensive database filtering was required to ensure the integrity of the reject-rate calculations. The reject rate for CR across all departments and across all exam types was 4.4% at UH and 4.9% at CH. The most frequently occurring exam types with reject rates of 8% or greater were found to be common to both institutions (skull/facial bones, shoulder, hip, spines, in-department chest, pelvis). Positioning errors and anatomy cutoff were the most frequently occurring reasons for rejection, accounting for 45% of rejects at CH and 56% at UH. Improper exposure was the next most frequently occurring reject reason (14% of rejects at CH and 13% at UH), followed by patient motion (11% of rejects at CH and 7% at UH). Chest exams were the most frequently performed exam at both institutions (26% at UH and 45% at CH) with half captured in-department and half captured using portable x-ray equipment. A ninefold greater reject rate was found for in-department (9%) versus portable chest exams (1%). Problems identified with the integrity of the data used for reject analysis can be mitigated in the future by objectifying quality assurance (QA) procedures and by standardizing the nomenclature and definitions for QA deficiencies.
机译：对从大学医院（UH）和大型社区医院（CH）收集的288,000个计算机射线照相（CR）图像记录进行了拒绝分析。每个记录都包含图像信息，例如身体部位和视图位置，曝光级别，技术人员标识符以及（如果图像被拒绝）拒绝的原因。需要进行广泛的数据库过滤，以确保拒绝率计算的完整性。所有部门和所有考试类型的CR拒绝率在UH是4.4％，在CH是4.9％。发现拒绝率达8％或更高的最常见检查类型在这两个机构中都是常见的（头骨/面部骨骼，肩膀，臀部，脊椎，部门内胸部，骨盆）。定位错误和解剖学截止是拒绝的最常见原因，占CH处拒绝的45％，UH处占56％。暴露不当是下一个最常见的拒绝原因（CH拒绝率为14％，UH拒绝率为13％），其次是患者运动（CH拒绝率为11％，UH拒绝率为7％）。在这两个机构中，胸部检查是执行最频繁的检查（UH为26％，CH为45％），一半是在部门内捕获的，一半是使用便携式X射线设备捕获的。与便携式胸部检查（1％）相比，部门内（9％）的拒绝率高出九倍。将来可以通过客观化质量保证（QA）程序并标准化QA缺陷的命名法和定义来减轻与用于次品分析的数据的完整性有关的问题。

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