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Choice of modality
- Colonoscopy is generally the first investigation of choice
- CT colonography is the investigation of choice in case colonoscopy is unfeasible or has been performed with incomplete examination. Such potential causes include patient discomfort or intolerance to the colonoscopy, looping of the scope, redundant colon, colonic spasm, acute angle flexures and tortuosity, and colonic obstruction caused by a tumor or adherences from previous surgery.
- For a full list of contributors, see article Radlines:Authorship for details. . Creators of images are attributed at the image description pages, seen by clicking on the images. See
- Scalise, Paola; Mantarro, Annalisa; Pancrazi, Francesca; Neri, Emanuele (2016). "Computed tomography colonography for the practicing radiologist: A review of current recommendations on methodology and clinical indications ". World Journal of Radiology 8 (5): 472. doi:10.4329/wjr.v8.i5.472. ISSN 1949-8470.