Dr Mohammed Amin
El Minya University
Egypt
Title: Diagnostic performance of Computed Tomographic colonography with limited cathatric preparation in detection of colorectal polyps ; comparison with conventional colonoscopy
Biography
Biography: Dr Mohammed Amin
Abstract
Purpose : To prospectively evaluate the diagnostic performance of Compted tomographic colonography with limited bowel preparation for the depiction of colorectal polyps, by using conventional colonoscopy as the gold standard technique .Material and Methods: Study included fourty five consecutively registered patients referred for conventional colonoscopy for colorectal cancer screening or for evaluation of colorectal symptoms, they were scheduled to undergo MDCT examination on the same day at Radiology Department in our institution, before the conventional colonoscopy examination. All patient undergo limited preparation Main outcome measures: Sensetivity, specificity, positive and negative predictive value of CTC versus CC in each group and overall Results: A total of 60 polypoid lesions were detected with colonoscopy in 45 patients Over all sensitivity of CTC in polyp detection was 85.71%, specificity 71.24, PPV 96.77 and NPV 33.33, as regarding CTC performance in each group. Conclusion: This study proved That CTC with limited cathartic bowel preparation and iodinated agents for faecal tagging can obtain high sensitivity and PPV values results for < 5 mm polyps comparable to those obtained with conventional preparation with laxatives. Furthermore, this method could really improve the acceptance of CTC for colorectal cancer screening