Ye YF, Zhang SQ, Li DH, Wang LQ, Zhou RM, Liu RH, Sun JL. Computed tomography colonography: advantages and main points.
Shijie Huaren Xiaohua Zazhi 2010;
18:679-684. [DOI:
10.11569/wcjd.v18.i7.679]
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Abstract
AIM: To evaluate the advantages of computed tomography (CT) colonography and to summarize the main points for CT colonography.
METHODS: Multislice CT colonography was performed in 46 patients with suspected colonic diseases, of which some patients underwent CT colonography in both the supine and prone positions. Different post-processing techniques such as multiplanar reformation (MPR), CT virtual colonoscopy, shaded surface display, Raysum and virtual pathology were employed to evaluate the mucosal and peripheral appearance of the colon.
RESULTS: Eleven patients showed negative results. Eleven patients were diagnosed as colon polyps, of which one had familial colonic polyposis. Sixteen patients were diagnosed as malignant lesions, of which 2 showed local thickening of the colon wall and 14 showed mass lesions. Five patients were diagnosed as inflammatory diseases.
CONCLUSION: The location, size, density and adjacent invasion of colon lesions can be evaluated objectively by CT colonography. The main points for CT colonography include sufficient cleansing of the colon lumen, adequate air injection, and combination of multiple post-processing techniques.
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