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In the SIGGAR study comparing CT Colonography to Colonoscopy (Lancet2013; doi:10.1016/S0140-6736(12)62186-2), they report an incomplete colonoscopy rate of 11.3%. Most international guidelines recommend a caecal intubation rate of at leaast 90%. The authors do not comment as to why the completion rates were low. This low rate would lead to bias in the final analysis as the sensitivity of colonoscopy may be significantly higher than CT colonography.
Re: Looking for colorectal cancers in adults with symptoms
In the SIGGAR study comparing CT Colonography to Colonoscopy (Lancet2013; doi:10.1016/S0140-6736(12)62186-2), they report an incomplete colonoscopy rate of 11.3%. Most international guidelines recommend a caecal intubation rate of at leaast 90%. The authors do not comment as to why the completion rates were low. This low rate would lead to bias in the final analysis as the sensitivity of colonoscopy may be significantly higher than CT colonography.
Competing interests: No competing interests