CT colonography against colonoscopy for colorectal cancer

Colorectal blight is the additional arch account of blight deaths in best developed countries. Screening for colorectal malignancies and polyps (which frequently become cancerous) has been apparent to lower the cardinal of deaths from cancer. Best blight societies and antitoxin assignment armament acclaim approved screening for blight of the colon.
Physicians generally acclaim colonoscopy for screening. Unfortunately, this action is afflictive and occasionally after-effects in breach of the colon, sometimes arch to death.
CT colonography is a almost new imaging technology that can be acclimated to appraise the ample bowel and rectum area these cancers occur. It is a noninvasive address that reveals blight lesions and polyps with about the aforementioned acuteness and specificity as colonoscopy, after the risks of bowel perforation.
This abstraction by Heitman and colleagues compares the costs and capability of these two approaches to screening, application affected prevalences of polyps and cancers amid average-risk individuals 50 to 74 years of age. They begin that screening 100 000 patients with CT colonography would amount $2.3 actor added (in Canadian dollars) than with colonoscopy, and would abstain 3.8 baleful perforations - but at the aforementioned time, this adjustment would advance to 4.1 cancer-related deaths from polyps not apparent with CT, which would after become malignant. (Colonoscopy is hardly added acute than CT colonography, and could be accepted to ascertain a assertive cardinal of polyps that the CT adjustment would miss.)
New technologies are consistently attractive. Because CT colonography does not physically access the body, it has alike added address - it is easier for patients to accept. Its cost, however, is abundant higher, and its account (in agreement of years of active that are gained) is alone hardly lower than back colonoscopy is used.