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Computed tomography pneumocolon had a low sensitivity for detecting colorectal neoplasms

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 QUESTION: How accurate is computed tomography (CT) pneumocolon for detecting colorectal neoplasms in patients scheduled for colonoscopy?


Blinded comparison of CT pneumocolon and colonoscopy.


1 hospital in London, UK.


201 consecutive patients (mean age 71 y, 59% women) receiving colonoscopy for detection of colorectal neoplasms. Exclusion criteria were age <55 years, history of inflammatory bowel disease, and family history of colon cancer in an asymptomatic patient.

Description of test and diagnostic standard

Standard bowel preparation was done for all patients. A CT pneumocolon examination was done in the supine position for all patients and in the prone position for most patients. …

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