By Philippe Lefere, Stefàan Gryspeerdt, Albert L. Baert
Virtual colonoscopy, or CT colonography, is a unique and swiftly evolving method for the detection of tumoral lesions within the colon. It gives you to be of serious worth as a screening instrument for either colorectal melanoma and its adenomatous precursor. With contributions from a number of leaders within the box, this publication addresses the entire very important concerns in terms of digital colonoscopy. there's a specific specialize in sensible points: tips to commence digital colonoscopy in a division, the average education, the significance of fecal tagging, tips on how to decrease the practise, tips on how to receive optimum colonic distension, and the proper scanning parameters. Imaging features and pitfalls are thought of intimately, with an in depth pictorial overview of inauspicious lesions, and the significance of computer-aided prognosis is mentioned. This publication should be precious to each radiologist looking details on the best way to practice the interesting means of digital colonoscopy.
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Sample text
No difference in mucosal coating was found. Patients who received CO2 had significantly less immediate and delayed pain than those who received air and less delayed pain than those insufflated with the 50/50 mixture. It was also found that air provided better distension than the other two gases although the difference did not attain statistical significance (Holemans et al. 1998). Another study identified less optimal colonic distension with manually administered CO2 than with room air in 100 patients referred for barium enema.
A Coronal multiplanar reformat demonstrates a wellcleansed transverse colon with no layering fluid or residual solid stool. b Three-dimensional endoluminal view from the same patient showing normal haustral folds which are easily evaluated because of the absence of residual material 24 J. Yee a b Fig. 2. a Excellent distension of the ascending colon and cecum on a sagittal multiplanar reformat optimizes diagnostic ability. b A well-distended segment in the same patient on the endoluminal view allows easy navigation a b Fig.
Radiology 217:765–771 Mpofu C, Watson A, Rhodes J (2004) Strategies for detecting colon cancer and/or dysplasia in patients with inflammatory bowel disease. Cochrane Database Syst Rev 2:CD000279 O’Brien M, Winawer S, Zauber A et al. (1990) The national polyp study. patient and polyp characteristics associated with high grade dysplasia in colorectal adenomas. Gastroenterology 88:371–379 Ota Y, Matsui T, Ono H et al. (2003) Value of virtual computed tomographic colonography for Crohn’s colitis: comparison with endoscopy and barium enema.