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A virtual colonoscopy is an alternative test that uses a CT scanner instead of a colonoscope. This may be a more suitable alternative for people who are unable to receive a colonoscopy.
Virtual colonoscopy (VC, also called CT colonography or CT pneumocolon) is the use of CT scanning or magnetic resonance imaging (MRI) to produce two- and three-dimensional images of the colon (large intestine), from the lowest part, the rectum, to the lower end of the small intestine, and to display the images on an electronic display device.
For example, in New York City’s 10038 ZIP code where Fortune is located, a virtual colonoscopy with contrast ranges from $496–$2,613 with a fair price of $778, according to Healthcare Bluebook ...
Virtual colonoscopy also avoids the risk of total blockage of any stricture in the large bowel due to barium impaction. [1] Some conditions are absolutely contraindicated for barium enema namely: toxic megacolon , pseudomembranous colitis , and recent history rigid endoscopy of the large bowel in the past five days and recent history of ...
Virtual colonoscopy is becoming more widely acceptable as a tool for assessing and treating colorectal cancer. Beginning January 1, 2025, Medicare may cover virtual colonoscopy in specific ...
CT scanning can perform a virtual colonoscopy with greater accuracy and less discomfort for the patient than a traditional colonoscopy. [143] [144] Virtual colonography is far more accurate than a barium enema for detection of tumors and uses a lower radiation dose. [145] CT is a moderate-to-high radiation diagnostic technique.
Abdominal imaging is associated with many potential uses for the different phases of contrast CT.The majority of abdominal and pelvic CT's can be performed using a single-phase, but the evaluation of some tumor types (hepatic/pancreatic/renal), the urinary collecting system, and trauma patients among others, may be best performed with multiple phases.
Colorectal polyps can be detected using a faecal occult blood test, flexible sigmoidoscopy, colonoscopy, virtual colonoscopy, digital rectal examination, barium enema or a pill camera. [3] [failed verification] Malignant potential is associated with degree of dysplasia; Type of polyp (e.g. villous adenoma): Tubular adenoma: 5% risk of cancer