Manning D J, Leach J
Department of Radiography and Imaging Sciences, St Martin's College, Lancaster LA1 3JD, UK.
Ergonomics. 2002 Dec 15;45(15):1103-16. doi: 10.1080/0014013021000039565.
Diagnostic imaging systems (e.g. X-rays and ultrasound) play an important role in medicine. Owing to increasing workloads now carried by clinical radiologists, the interpretation of medical images is increasingly being passed to radiographers. This is especially so in those areas of diagnoses where examinations are performed on large numbers of patients but when the frequency of the disorder is very low (e.g. mass mammography screening). This study explored the accuracy of the radiographic interpretation of pulmonary nodules by clinical radiologists and student radiographers, and their correlations with tests of field-dependency, visual search and spatial reasoning. Overall performance in lung nodule detection gave a mean ROC (Az)=0.851 for student radiographers, while radiologists achieved 0.871. No correlation was found between diagnostic performance and either fielddependency or visual search. A significant negative correlation was found between diagnostic performance and spatial reasoning (p < 0.05).
诊断成像系统（如X光和超声波）在医学中发挥着重要作用。由于临床放射科医生目前的工作量不断增加，医学图像的解读越来越多地交给放射技师。在那些对大量患者进行检查但疾病发生率非常低的诊断领域（如大规模乳腺钼靶筛查）尤其如此。本研究探讨了临床放射科医生和放射技师学生对肺结节进行影像学解读的准确性，以及它们与场依存性、视觉搜索和空间推理测试的相关性。在肺结节检测方面，放射技师学生的总体表现平均ROC（Az）=0.851，而放射科医生为0.871。未发现诊断性能与场依存性或视觉搜索之间存在相关性。发现诊断性能与空间推理之间存在显著负相关（p<0.05）。
