Center Hospital of the National Center to Global Health and Medicine, Toyama Shinjuku-ku, Tokyo, Japan.
National Cancer Center Japan Tsukiji Campus, Tsukiji, Chuo-ku, Tokyo, Japan.
J Xray Sci Technol. 2018;26(6):909-917. doi: 10.3233/XST-180409.
The Accreditation Council for Lung Cancer CT Screening of Japan established guidelines for the certification of Radiological Technologists in 2009.
To analyze the trends in examination pass rates of the Radiological Technologists and discuss the reasons.
The cohort comprised 1593 Radiological Technologists (as examinees) based on 10-year of data (with a total of 17 examination runs). First, the examinees' written test results were analyzed. Second, an abnormal finding detection test was conducted using >100 client PCs connected to a dedicated server containing low-dose lung cancer CT screening images of 60 cases. The passing scores were correct answer rate >60% and sensitivity (TP) of >90%, respectively.
Overall, 1243 examinees passed with an overall rate of 78%. The average pass rate for the written test was 91%, whereas that for the abnormal findings detection test was 85%. There was a moderate correlation between the test pass rate and average years of clinical experience of the examinees for the abnormal findings detection test (R = 0.558), whereas no such correlation existed for the written test (R = 0.105).
In order for accredited Radiological Technologists to serve as primary screeners of low-dose computed tomography, it is important to revise the educational system according to current standard practices.
日本肺癌 CT 筛查认证委员会于 2009 年制定了放射技师认证指南。
分析放射技师考试通过率的趋势，并探讨其原因。
该队列纳入了 1593 名放射技师（作为考生），基于 10 年的数据（共进行了 17 次考试）。首先，分析考生的笔试成绩。其次，使用连接到专用服务器的 100 多台客户端 PC 进行异常发现检测测试，该服务器包含 60 例低剂量肺癌 CT 筛查图像。通过分数分别为正确答案率>60%和灵敏度（TP）>90%。
总体而言，有 1243 名考生通过，通过率为 78%。笔试的平均通过率为 91%，而异常发现检测测试的通过率为 85%。异常发现检测测试的考生平均临床经验与测试通过率之间存在中度相关性（R=0.558），而笔试则不存在相关性（R=0.105）。
为了让认证的放射技师能够作为低剂量计算机断层扫描的初级筛查者，根据当前的标准实践修订教育系统非常重要。
