Virtual colon screenings examined

re detected in approximately 16 percent (156 pts) of CTC screenings, the most common being coronary artery calcifications (41 pts) and non-calcified pulmonary nodules (33 pts). Abnormalities were found throughout the body, including the heart and lungs, kidney, liver, bone and other organs. While half (51.6 percent) were classified as incidental, another 33 percent were moderate and 15 percent were critical.

"Significant abnormalities requiring further action accounted for nearly half of the abnormalities we found, suggesting that by screening for colon cancer, we may offer early detection of other potentially morbid conditions in some patients," said Brooks Cash, M.D., of the National Naval Medical Center, and senior author of the study. "However, it is important to note that abnormalities detected by CTC also increase the indirect costs associated with the exam, so we need to evaluate the true outcomes associated with these findings before recommending the routine use of this procedure."

Accuracy of Computed Tomographic Colonography for Colorectal Cancer (CRC) Screening in Asymptomatic Individuals [Abstract 278]

In an attempt to improve rates of screening while maintaining accuracy, researchers have been examining the optimal usage of computed tomographic colonography (CTC) screening, a less invasive and time consuming screening process. Studies have previously suggested that CTC was comparable to optical colonoscopy (OC), and interim results from this study support those findings.

For the current study, researchers recruited participants who were asymptomatic and at average risk for colon cancer. A total of 760 patients have undergone CTC since the start of the study. If the CTC identified a polyp larger than 10 mm or more than three polyps larger than 6 mm, participants underwent same-day OC, while patients with one or two polyps measuring 6-9 mm underwent OC after one year, and patients with no polyps greater than 6

Contact: Aimee Frank
American Gastroenterological Association

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