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:10/25/2014)... York (PRWEB) October 25, 2014 ... lawsuits ( http://www.vaginalmeshlawsuit2015.com/ ) filed against Boston ... in U.S. District Court, Southern District of West ... Judgment on Punitive Damages in a group of ... a ruling issued on October 21st, U.S. District ...
(Date:10/25/2014)... supply to an arm or a leg before heart surgery ... to a new study. "During heart surgery we ... be able to operate on it. After some time without ... energy because it doesn,t get oxygen. When we shut off ... arm or a leg, the body prepares for an upcoming ...
(Date:10/25/2014)... (HealthDay News) -- Researchers who discovered antibiotics in ... cause for concern. The use of antibiotics ... human consumption contribute to the development of antibiotic-resistant ... information from the study. Each year in ... million people and kill about 23,000, according to ...
(Date:10/25/2014)... Randy Dotinga HealthDay Reporter ... tests are developed that spot increased risks for certain cancers, ... about getting screened. But a new study suggests that, ... People who found out their genes doubled their risk of ... risk to get screened. "It didn,t make any difference, ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 On Saturday, October ... its fourth annual family health and fitness fair ¡Vive tu ... physical activity and good nutrition for better health and wellness ... which is free and open to the public, will be ... Brownsville, from 9:00 am to 1:00 pm. , “¡Vive ...
Breaking Medicine News(10 mins):Health News:Transvaginal Mesh Lawsuits Move Forward, As Federal Judge Denies Motion for Summary Judgment on Punitive Damages in Florida Cases, Bernstein Liebhard LLP Reports 2Health News:Transvaginal Mesh Lawsuits Move Forward, As Federal Judge Denies Motion for Summary Judgment on Punitive Damages in Florida Cases, Bernstein Liebhard LLP Reports 3Health News:Transvaginal Mesh Lawsuits Move Forward, As Federal Judge Denies Motion for Summary Judgment on Punitive Damages in Florida Cases, Bernstein Liebhard LLP Reports 4Health News:Brief Interruption of Blood Supply to Limb Might Aid Heart Surgery: Study 2Health News:Researchers Say Antibiotics in Fish a Health Concern 2Health News:Knowing Genetic Risk for Cancer May Not Change Behavior 2Health News:Brownsville Community Health Center Presents Fourth Annual ¡Vive Tu Vida! Get Up! Get Moving!® Event 2Health News:Brownsville Community Health Center Presents Fourth Annual ¡Vive Tu Vida! Get Up! Get Moving!® Event 3Health News:Brownsville Community Health Center Presents Fourth Annual ¡Vive Tu Vida! Get Up! Get Moving!® Event 4
(Date:10/22/2014)...  CryoLife, Inc. (NYSE: CRY ), a ... cardiac and vascular surgery, announced today that James ... has been elected to the Company,s Board of Directors, ... Anderson , Executive Chairman of CryoLife, stated, "Since joining the ... excellent leader who is well positioned to maximize CryoLife,s ...
(Date:10/22/2014)... LOUIS , Oct. 21, 2014  Early ... often subtle or unnoticed, but new technology, coupled ... outcomes and leading to earlier detection of eye ... affects 29 million Americans. If left untreated, these ... even blindness. Recently, optometric researchers ...
(Date:10/22/2014)... InVivo Therapeutics Holdings Corp. (OTCQB: NVIV) based ... spinal cord injury (SCI) treatment with their novel Neuro-Spinal ... tissue regrowth in the spinal cord area when cells ... approved polymer, the scaffold ultimately breaks down to water ... body. NVIV has recently attracted significant investor attention with ...
Breaking Medicine Technology:Pat Mackin Joins CryoLife Board of Directors 2Pat Mackin Joins CryoLife Board of Directors 3Technology Advancements Enhance Early Detection of Eye Diseases Associated with Diabetes 2Technology Advancements Enhance Early Detection of Eye Diseases Associated with Diabetes 3InVivo Therapeutics Analyst Coverage Initiated: Analyst Report by BrokerBank Securities, Inc. 2InVivo Therapeutics Analyst Coverage Initiated: Analyst Report by BrokerBank Securities, Inc. 3
Cached News: