CT Colonography News and Research

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CT colonography is an imaging procedure used for the screening of colorectal cancer. The procedure involves an examination of the colon and rectum using images obtained using a CT scanner.

No data to support leaving small polyps in place

The American Gastroenterological Association (AGA) Institute is eager to increase the number of patients who receive screening for colon cancer.

27 Apr 2007

Virtual Colonoscopy ...safer and cheaper

New technology called "virtual colonoscopy" is promising to offer fewer complications and be more cost-effective than the traditional colonoscopy.

24 Apr 2007

Virtual colonoscopy most cost-effective colon cancer screening test

A new study says targeting smaller (5 mm) lesions does little to significantly reduce the incidence of colorectal cancer (CRC) and, in fact, results in extremely high financial costs and a large proportion of adverse events.

24 Apr 2007

Virtual colonoscopy is an accurate screening method for colorectal cancer

"Our positive experience with virtual colonoscopy screening covered by health insurance demonstrates its enormous potential for increasing compliance for colorectal cancer prevention and screening"

17 Oct 2006

CT colonography even safer than previously thought

The safety profile for CT colonography (CTC) is extremely favorable, particularly for the purposes of screening patients with no symptoms and when distending the colon using an automated carbon dioxide technique, a finding that goes against the higher complication rates for CTC reported by other groups, according to a new study.

3 May 2006

CT colonography best choice for regular screening for cancer

Colorectal cancer is the second leading cause of cancer deaths in most developed countries. Screening for colorectal malignancies and polyps (which frequently become cancerous) has been shown to lower the number of deaths from cancer. Most cancer societies and preventive task forces recommend regular screening for cancer of the colon.

10 Oct 2005

Accuracy of CT colonography is excellent in comparison with conventional colonoscopy for colorectal cancer screening

The diagnostic accuracy of CT colonography is excellent in comparison with conventional colonoscopy for colorectal cancer screening, an analysis of previous studies shows.

16 May 2005

“Virtual Colonoscopy” effective in finding most polyps but may miss small ones

A type of noninvasive “virtual colonoscopy” can diagnose medium to large polyps as well as traditional colorectal probes can, but it may miss some smaller yet potentially cancerous growths, according to a new review of studies.

21 Apr 2005

Virtual colonoscopy raises issues for further study

The American Society for Gastrointestinal Endoscopy (ASGE) has reacted with caution to claims of the benefits of computed tomography (CT) colonography, also referred to as virtual colonoscopy, compared to standard colonoscopy.

29 Nov 2004

Colonoscopy remains the most sensitive test available for detection of colorectal polyps and cancer

A study in today’s issue of the Annals of Internal Medicine reports a miss rate of approximately 10 percent for large (>5mm) precancerous polyps during conventional colonoscopy.

7 Sep 2004

CT colonography not presently a viable option for colorectal cancer screening

Findings of a new multicenter study by Cotton et al. published today in the Journal of the American Medical Association comparing standard colonoscopy with CT colonography for the detection of colorectal cancer reveal that this technology, in the form used most often in the United States, while of significant interest, is not presently a viable option for routine colorectal cancer screening.

14 Apr 2004

CT colonography lacks the sensitivity of conventional colonoscopy

A new study published in JAMA on CT colonography or 'virtual' colonoscopy using 2-D imaging finds that this test lacks the sensitivity and specificity of conventional colonoscopy for colorectal cancer screening. Study co-author and American College of Gastroenterology President Douglas K. Rex, M.D. is available for interviews.

13 Apr 2004