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:
*Name:
*Comment:
*Email:


(Date:4/29/2016)... ... April 29, 2016 , ... The American ... productivity, stability, even security. Most importantly, employees are the single most important asset ... American workers so unhappy? , Just under half of American workers are emotionally ...
(Date:4/29/2016)... ... April 29, 2016 , ... A new study by ... congenital diaphragmatic hernia have better survival rates if surgery is performed early. Approximately ... where the diaphragm fails to form completely, letting abdominal organs into the chest ...
(Date:4/29/2016)... , ... April 29, 2016 , ... ... Canadian Celiac Association (CCA), is pleased to announce the launch of the ... nutritional articles, recipes, and more. The purpose of the GFCP Scoop ...
(Date:4/29/2016)... (PRWEB) , ... April 29, 2016 , ... For those ... as the meal to miss. That was among the many new lifestyle diet tips ... a recent Sharon Kleyne Hour® Power of Water® radio show. Bonny and Lawrence noted ...
(Date:4/29/2016)... ... , ... The infertility specialists at HRC Fertility/Orange County (HRC/OC) -- Dr. Mickey ... -- are proud of the recent release of their 2014 in vitro fertilization success ... published the latest verified data for 375 U.S. member clinics. *Preliminary data shows HRC/OC ...
Breaking Medicine News(10 mins):
(Date:4/27/2016)... April 27, 2016   ... Growth in Recurring Consumable Sales  Clinical sales ... Kea Technologies (Euronext: MKEA, OTCQX: MKEAY) inventor of Cellvizio®, ... sales for the first quarter ended March 31, 2016 ... execution of its commercial strategy. First Quarter ...
(Date:4/27/2016)... York , April 27, 2016 ... report titled, "Skincare Devices Market - Global Industry Analysis, ... According to the report, the global skincare devices market ... is anticipated to expand at a CAGR of 10.1% ... in 2023. Browse the full Skincare Devices Market ...
(Date:4/27/2016)... 2016 Tie-up with Government hospitals ... to save newborns   Fortis La Femme, ... in collaboration with Breast Milk Foundation (BMF), a non-profit organization ... Milk Bank, ,Amaara, in Delhi-NCR today. This non-profit centre recognizes ... infants and should be available to babies deprived of mother,s ...
Breaking Medicine Technology:
Cached News: