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| 1 | Accuracy of colon tumor localization:Computed tomography scanning as a complement to colonoscopy显示文摘AIM:To determine the utility of computed tomography(CT) scanning in localizing colon tumors.METHODS:At a single tertiary care teaching hospital,a retrospective chart review was conducted on patients who underwent surgery for colon malignancies between January 2004 and May 2006.One hundred and four charts containing all of the following data were reviewed:preop erative colonoscopy report,preoperative CT report,surgical operative report,tumor pathology report.The colon was divided into five segments from the cecum to the sigmoid and the location of the lesions was categorized into one of these areas.The tumor location was considered 'erroneous' if its location determined during surgery differed from the location determined by colonoscopy or CT.RESULTS:Over all,tumor location was accurately determined via colonoscopy in 83/104 cases(79.8%) and erroneously in 21/104(20.2%) of cases.CT scan accurately localized colon tumors in 52/104(50.0%) of cases,incorrectly localized tumors in 18/104(17.3%) of cases,and did not detect known tumors in 34/104(32.7%) of cases.Of the 21 tumors erroneously located by colonoscopy,11(52.4%) were accurately localized by CT scan.The average tumor size for all patients in this study was 5.72(+/-3.11) cm.The average size of tumors properly located by colonoscopy and CT was 5.39(+/-3.34) cm and 6.79(+/-3.48) cm,respectively.The average size of the tumors not detected by CT was 3.98(+/-1.75) cm.CONCLUSION:CT scanning may be used in concert with colonoscopy to help localize colon tumors. | Jessica Lee Anthony Voytovich William Pennoyer Kristy Thurston Robert A Kozol | 2010 | World Journal of Gastrointestinal Surgery2010，2，1： | 3 |
| 2 | Mesenteric angiography for lower gastrointestinal hemorrhage are there predictors for a positive study?显示文摘 | W. P. Pennoyer M.D. P. V. Vignati M.D. J. L. Cohen M.D | 1997 | Diseases of the Colon & Rectum1997，，9： | 1 |
| 3 | A New Frontera: Foreign Sovereign Immunity, Arbitral Awards and a Waive Goodbye to Assets 显示文摘 | Pauline Whittinghill Klyce Pennoyer | 2010 | Columbia Journal of Transnational Law2010，49，1： | 1 |
| 4 | Mesenteric angiography for lower gastrointestinal hemorrhage 显示文摘 | Pennoyer WP Vignati PV Cohen JL | 1997 | Dis Colon Rectum1997，40，： | 1 |
| 5 | Does a 48-Hour Rule Predict Outcomes in Patients with Acute Sigmoid Diverticulitis?显示文摘 | Jessica Evans Robert Kozol Wayne Frederick Anthony Voytavich William Pennoyer Alexandra Lukianoff Jennifer Lardner | 2008 | Journal of Gastrointestinal Surgery2008，，7： | 1 |
| 6 | Mesenteric angiography for lower gastrointestinal hemorrhage : are there predictors for a positive study显示文摘 | Pennoyer W P Vignati P V Cohen J L | 1997 | Dis Colon Rectum1997，40，： | 1 |
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