Assertion: virtual colonoscopy | /r/CapableOf | call ct pneumocolon
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Source sentences:
text: Virtual colonoscopy (VC, also called CT colonography or CT pneumocolon) is a medical imaging procedure which uses x-rays and computers to produce two- and three-dimensional images of the colon (large intestine) from the lowest part, the rectum, all the way to the lower end of the small intestine and display them on a screen.