HOME >> MEDICINE >> NEWS
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
media@gastro.org
301-941-2620
American Gastroenterological Association
1-Jul-2005


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:10/31/2014)... In an effort to expand services and improve efficiency ... will soon offer orthodontics at his Oral & Maxillofacial Surgery ... , To build upon the high degree of care and ... known for, Dr. Jamali is welcoming an orthodontist that is ... as UCLA, Stanford and UCSF. He added that the new ...
(Date:10/31/2014)... 2014 Phoenix dentist , Dr. Christy, ... November. Whether patients simply need routine care or have a ... than now to get that necessary care. The right dental ... routine and even essential treatments due to financial concerns. Throughout ... on any treatments offered by the team at Christy Dental ...
(Date:10/31/2014)... Uniwigs.com newly arrived flip in hair extensions are ... itself around people’s heads with a transparent miracle wire undetectable ... comes with adjustable loops, which are improved over the basic ... now adjust the wire to best fit the size of ... generation of flip ins, they simply need to adjust the ...
(Date:10/31/2014)... 31, 2014 Med-Care Diabetic & Medical ... highest principles of patient care and service, announced a ... and wellness website, to provide an online Diabetes ... , The Diabetes Health Center will provide topical information ... living with diabetes. Content will feature advice from leading ...
(Date:10/31/2014)... FRIDAY, Oct. 31, 2014 (HealthDay News) -- A few simple ... cope with, a sleep expert says. "Adjusting to the ... bit easier than handling the time change in the spring. ... sleep for the fall time change," Dr. Praveen Rudraraju, director ... in Mount Kisco, N.Y., said in a hospital news release. ...
Breaking Medicine News(10 mins):Health News:Oral & Maxillofacial Surgery of New York Adds Orthodontic Patient Services 2Health News:Oral & Maxillofacial Surgery of New York Adds Orthodontic Patient Services 3Health News:Phoenix Dentist, Dr. Christy, is Now Offering Ten Percent Off On All Dental Treatments for the Month of November 2Health News:UniWigs Unveiles New Generation of Flip In Hair Extensions 2Health News:Med-Care Diabetic & Medical Supplies, Inc. Partners with Lifescript to Provide Online Diabetes Health Center 2Health News:Med-Care Diabetic & Medical Supplies, Inc. Partners with Lifescript to Provide Online Diabetes Health Center 3Health News:Make the Most of This Weekend's Time Change 2
(Date:10/31/2014)... 31, 2014 Oramed Pharmaceuticals ... company focused on the development of oral drug ... a conference call to discuss the clinical results ... the company,s proprietary oral insulin capsules, to treat ... at 10:00 a.m. Eastern time. Shareholders ...
(Date:10/31/2014)... 31, 2014 Investor-Edge has initiated ... NSPH ), Isis Pharmaceuticals Inc. (NASDAQ: ... ), ACADIA Pharmaceuticals Inc. (NASDAQ: ACAD ), ... these five companies can be accessed at: http://investor-edge.com/register ... NASDAQ Composite ended at 4,566.14, up 0.37%, the Dow ...
(Date:10/31/2014)... 3, 2014 British Journal ... BPH to discuss "male orgasmic dysfunction" with their doctor ... treat prostate symptoms while preserving sexual function   ... publication of a paper in the British Journal of ... prostate to discuss with their doctors the likely impact ...
Breaking Medicine Technology:Oramed to Report Key Top Line Results from U.S. Phase IIa Trial with Oral Insulin in Type 1 Diabetes 2Oramed to Report Key Top Line Results from U.S. Phase IIa Trial with Oral Insulin in Type 1 Diabetes 3Momentum Indicators for Biotech Stocks -- Nanosphere, Isis Pharma, Halozyme Therapeutics, ACADIA Pharma, and Synta Pharma 2Momentum Indicators for Biotech Stocks -- Nanosphere, Isis Pharma, Halozyme Therapeutics, ACADIA Pharma, and Synta Pharma 3Momentum Indicators for Biotech Stocks -- Nanosphere, Isis Pharma, Halozyme Therapeutics, ACADIA Pharma, and Synta Pharma 4Momentum Indicators for Biotech Stocks -- Nanosphere, Isis Pharma, Halozyme Therapeutics, ACADIA Pharma, and Synta Pharma 5Sexual Dysfunction No Longer Inevitable When Treating Enlarged Prostate 2
Cached News: