Stopped: enrollment terminated, analysis ongoing
Polyps found during screening colonoscopy have to be removed or at least biopsied. Attempts to save costs include endoscopic assessment of polyps with regards to differential diagnoses between adenomas (which have to be removed) and hyperplastic polyps (could be left in place or removed and not examined histologically). Such a concept would only be feasible if endoscopy can make the differential diagnosis with high accuracy. Such high accuracy rates - between 80% and 95% - have been reported from reference centers with specific scientific interest. The investigators want to test whether these results a) can be reproduced in the private practice setting performing large-volume screening colonoscopies and b) whether latest generation endoscopes provide benefit in terms of better accuracy.
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Accuracy (sensitivity/specificity) of HDTV/iScan image technology (Hi Line) versus conventional colonoscopy (classic Line) in the diagnosis of adenomas versus hyperplastic polyps
Timeframe: 14 months