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Effect of Directed Training on Reader Performance for CT Colonography: Multicenter Study

2007; Radiological Society of North America; Volume: 242; Issue: 1 Linguagem: Inglês

10.1148/radiol.2421051000

1527-1315

Steve Halligan,

Pancreatic and Hepatic Oncology Research

Results:Overall, 28 observers read 1084 studies and detected 121 cancers, 134 large polyps, and 33 medium polyps; 448 healthy subjects were categorized correctly.Experienced radiologists detected 116 lesions; trained radiologists and technologists detected 85 and 87 lesions, respectively.Overall accuracy of experienced observers (74.2%) was significantly better than that of trained radiologists (66.6%) and technologists (63.2%).There was no significant difference (P ϭ .33) between overall accuracy of trained radiologists and that of technologists; however, some trainees reached the mean performance achieved by experienced observers. Conclusion:Experienced observers interpreted CT colonographic images significantly better than did novices trained with 50 studies.On average, no difference between trained radiologists and trained technologists was found; however, individual performance was variable and some trainees outperformed some experienced observers.