Radiation exposure during virtual colonoscopy doesn't significantly raise cancer risks

Bethesda, Maryland (July 1, 2005) The risk of developing cancer as a result of being exposed to X-rays during computed tomography colonography (also known as "virtual colonoscopy" or CT colonography) is considerably less than 1 percent, according to an article published today in the American Gastroenterological Association (AGA) journal Gastroenterology. Researchers say the radiation risk can be further reduced by creating optimized protocols for performing this screening test.

"It's good news that the radiation risk is low with CT colonography, but many practical issues need to be addressed before the test can be recommended to patients for routine colorectal cancer screening," said AGA President David A. Peura, MD. "Evaluating issues of standardization and accuracy of test results and addressing disparities in consistent and uniform training of professionals performing the test should be the focus of future studies. In addition, the procedure still requires a great amount of bowel preparation and causes discomfort--both issues largely affect the current state of patient compliance in colorectal cancer screening."

Researchers from the Center for Radiological Research at Columbia University Medical Center estimated the radiation dose to different organs from adult CT colonography scans. Dose-, organ- and gender-specific excess relative risks for cancer incidence in Japanese A-bomb survivors were used as a basis to generate risk estimates for the U.S. population. This study found the estimated lifetime risk of cancer as a result of radiation from CT colonography in a 50-year-old subject is about 0.14 percent and 0.022 percent for a 70-year-old patient. The main organs found to be at risk for cancer are the colon, stomach and bladder.

"Our study shows that radiation risks associated with virtual colonoscopy are relatively small--much smaller, for example, than for CT-based lung cancer screening," said David J. Brenner, PhD, lead st

Contact: Kimberly Wise
American Gastroenterological Association

Page: 1 2 3

Related medicine news :

1. Radiation therapy reduces cancer recurrence in older breast cancer patients
2. Radiation therapy combo cures prostate cancer long-term
3. Radiation-killed bacteria vaccine induces broad immune response in mice
4. Radiation-armed robot rapidly destroys human lung tumors
5. Radiation therapy shown to increase survival in certain lung cancer patients
6. Radiation better than surgery at preserving speech for patients with head and neck cancer
7. Radiation treatment prolonged liver cancer patients lives, U-M study finds
8. Radiation therapy can help spare vision in patients with melanoma of the eye
9. Radiation, chemotherapy before surgery controls rectal cancer
10. Radiation and hormone therapy after surgery cures breast cancer
11. Radiation after prostate cancer surgery increases survival

Post Your Comments:

(Date:6/26/2016)... Clarkston, Michigan (PRWEB) , ... June 26, 2016 ... ... respect to fertility once they have been diagnosed with endometriosis. These women need ... but they also require a comprehensive approach that can help for preservation of ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX ... Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package transforms over ... Cut Pro X . Simply select a ProHand generator and drag it above media ...
(Date:6/25/2016)... ... , ... On Friday, June 10, Van Mitchell, Secretary of the Maryland Department ... in recognition of their exemplary accomplishments in worksite health promotion. , The Wellness at ... Wellness Symposium at the BWI Marriott in Linthicum Heights. iHire was one of 42 ...
(Date:6/24/2016)... ... ... June 19, 2016 is World Sickle Cell Observance Day. In an effort ... holistic treatments, Serenity Recovery Center of Marne, Michigan, has issued a pain ... Disease (SCD) is a disorder of the red blood cells, which can cause episodes ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... ... now offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience with ... Damon brackets , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is a ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- The Academy of Managed Care Pharmacy (AMCP) today ... allow biopharmaceutical companies to more easily share health care ... coverage decisions, a move that addresses the growing need ... The recommendations address restrictions in the sharing of product ... a prohibition that hinders decision makers from accessing HCEI ...
(Date:6/24/2016)... --  Pulmatrix, Inc ., (NASDAQ: PULM ), ... today that it was added to the Russell Microcap ... set of U.S. and global equity indexes on June ... for Pulmatrix," said Chief Executive Officer Robert Clarke ... in developing drugs for crucial unmet medical needs, and ...
(Date:6/23/2016)... Calif. , June 23, 2016 Any dentist ... many challenges of the current process. Many of them do ... of the technical difficulties and high laboratory costs involved. And ... to offer it at such a high cost that the ... it. Dr. Parsa Zadeh , founder of ...
Breaking Medicine Technology:
Cached News: