| CT Colonography in Patients Who Have Undergone Sigmoid Colostomy: A Feasibility Study. | |
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MedLine Citation:
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PMID: 21940536 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: The purpose of this study was to evaluate the technical feasibility of CT colonography of patients who have undergone sigmoid colostomy after abdominoperineal resection. MATERIALS AND METHODS: Seven men and 11 women (mean age, 57.2 ± 14.5 [SD] years) who had undergone abdominoperineal resection with sigmoid colostomy for rectal cancer were included. Colonic cleansing and fecal tagging were performed with magnesium citrate and 5% weight/volume barium. A conventional small rectal catheter with a retention balloon was introduced into the colonic stoma. An inflated balloon (15-25 mL) was positioned several centimeters beneath the skin. The interposed tissue acted as the mechanism for preventing balloon expulsion during colonic insufflation with carbon dioxide. Unenhanced right decubitus and contrast-enhanced supine images were obtained. Air-fluid leak, balloon expulsion, complications, and colonic distention evaluated on a 4-point scale in which 1 was the worst and 4 the best and mucosal coverage were assessed. RESULTS: Examinations were performed uneventfully for all but one patient, who had temporary air and fluid leakage. The mean amount of carbon dioxide used was 2.64 ± 0.64 L. In the right decubitus position, the mean distention grade of each colonic segment was 2.7 ± 1.1 (sigmoid), 3.4 ± 0.6 (descending), 3.6 ± 0.5 (transverse), 3.6 ± 0.5 (ascending), and 3.7 ± 0.5 (cecum). In the supine position the mean grades were 2.7 ± 1.2, 3.1 ± 0.7, 3.7 ± 0.5, 3.7 ± 0.5, and 3.8 ± 0.4. Four patients (22.2%) had segments not adequately visualized in either position owing to luminal collapse; all of these segments were in the sigmoid colon. Three patients (16.7%) had areas submerged under fecal matter in both positions, but these areas were evaluable because of fecal tagging or IV contrast enhancement. CONCLUSION: CT colonographic examination through a sigmoid stoma was technically feasible with currently available instruments, but further improvements in technique are needed. |
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Authors:
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Ju Hee Lee; Seong Ho Park; Seung Soo Lee; Ah Young Kim; Jin Cheon Kim; Chang Sik Yu; Hyun Kwon Ha |
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Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: AJR. American journal of roentgenology Volume: 197 ISSN: 1546-3141 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-9-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: - |
Other Details:
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Languages: ENG Pagination: W653-W657 Citation Subset: - |
Affiliation:
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Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Asanbyeongwon-gil 86, Songpa-Gu, Seoul 138-736, Korea. |
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