Variation in Diagnostic Performance among Radiologists at Screening CT Colonography

Comparison of the diagnostic performance of CT colonography interpreted by radiologists and radiographers

OBJECTIVE To compare computed tomographic colonography (CTC) performance of four trained radiographers with the CTC performance of two experienced radiologists. METHODS Four radiographers and two radiologists interpreted 87 cases with 40 polyps ≥6 mm. Sensitivity, specificity, and positive predictive value (PPV) were assessed on a per-patient basis. On a per-polyp basis, sensitivity was calcu...

UPDATE IN RADIOLOGY CT colonography: What radiologists need to know

CT colonography and colorectal screening.

Screening CT colonography: how I do it.

OBJECTIVE The purpose of this article is to detail an approach to CT colonographic screening that has evolved at one institution. CONCLUSION CT colonography is a rapidly advancing technology that has great potential for addressing a deadly but preventable disease-colorectal carcinoma. CT colonography is ideally suited for widespread screening of asymptomatic adults and has become an integral ...

CT colonography screening: ready for prime time?

Every year more than one million new patients are diagnosed with colon cancer worldwide. Although multiple prospective randomized trials and observational studies have demonstrated that mortality from colon cancer can be reduced with screening and removal of adenomatous polyps, compliance with screening guidelines remains low. Recent CT colonography (CTC) trials have shown that CTC is capable o...