Navigation Links
New Heart CT Scans Deliver Far Less Radiation: Study
Date:2/23/2010

Imaging entire heart in one sitting reduces exposure time

TUESDAY, Feb. 23 (HealthDay News) -- The newest heart imaging CT technology exposes patients to as much as 91 percent less radiation than standard CT scanning, researchers say.

"Coronary CT angiography has generated great enthusiasm in recent years, due to its diagnostic accuracy in assessing patients with known or suspected coronary artery disease. However, that enthusiasm has been tempered by concern about the potentially high radiation dose received by patients," Dr. Andrew J. Einstein, an assistant professor of clinical medicine in radiology and director of cardiac CT research at Columbia University Medical Center, said in a news release.

Einstein and colleagues compared radiation exposure with a standard 64-detector row CT scanner -- which can image 4 centimeters of the heart at a time -- and a 320-detector row volume CT scanner, which can image 16 centimeters -- the entire length of the heart -- in a single rotation and within a single heartbeat.

"By imaging the entire heart in one piece, volume scanning eliminates artifacts due to seams or gaps between image sections. Moreover, the X-ray tube is left on for only a brief duration, as little as 0.35 seconds," Einstein said in a news release from the Radiological Society of North America.

The study, published in the March issue of Radiology, found that the effective radiation dose was 35.4 millisieverts for a 64-detector row helical scan and 4.4 mSv for a 320-detector row volume scan.

"As CT technology advanced from 16- to 64-slice capabilities, the radiation dose went up significantly. Today, technology development is going in the opposite direction, reducing radiation exposure," Einstein said.

More information

The U.S. Food and Drug Administration has more about CT scans.



-- Robert Preidt



SOURCE: Radiological Society of North America, news release, Feb. 23, 2010


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. ANT+ and iTMP Announce the Digifit™ Ecosystem - The First iPhone™ Apps to Integrate Running, Cycling and Heart Rate Monitoring
2. Changes during menopause increases risk of heart disease and stroke
3. Jiffy Lube(R) Well On Its Way to Raising Another $1 Million to Fight Heart Disease
4. Cristophe Salon in Beverly Hills Teams Up with Mad Men Actor to Help Raise Money for His 17-Year-Old Cousins Heart Transplant
5. Apex Heart Care, First Arizona Clinic to Install Shape-HF; New Medical Device Measures Patient Physiology to Define Shortness of Breath
6. Sacred Heart Medical Center Cited for Violation of Safety Standards in H1N1 Prevention
7. Early On, Hormone Therapy May Raise Womens Heart Risks
8. Happiness Protects Your Heart
9. Stereotaxis Procedure Prominently Featured on BBC Documentary From the Heart
10. “Hearts and Minds” Education Program Launched: On Average, People with Mental illness Live 25 Years Less than Other Americans
11. Americans Falling Short on Heart-Healthy Fruits and Vegetables
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... 27, 2016 , ... TherapySites, the leading website ... Tennessee Counseling Association. This new relationship allows TherapySites to continue to ... adding exclusive benefits and promotional offers. , "TCA is extremely excited about this ...
(Date:6/27/2016)... ... June 27, 2016 , ... A revolution ... the emergency ambulance transport experience for the millions of people who require these ... disrupted the taxi industry through the use of technology. Now, SmartEMS has put ...
(Date:6/26/2016)... PLAINSBORO, N.J. (PRWEB) , ... June 27, 2016 , ... ... same sources, yet in many ways they remain in the eye of the beholder, ... Oncology (EBO), a publication of The American Journal of Managed Care. For the full ...
(Date:6/26/2016)... ... June 26, 2016 , ... Pixel Film Studios Released ProSlice Levels, a ... can give their videos a whole new perspective by using the title layers ... Film Studios. , ProSlice Levels contains over 30 Different presets to choose from. ...
(Date:6/26/2016)... NC (PRWEB) , ... June 26, 2016 , ... Brent Kasmer, a legally blind and ... to be personalized through a fitness app. The fitness app plans to fix the two ... currently only offer a one size fits all type program , They don’t ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... Mass. , June 24, 2016   ... Spaulding Rehabilitation Network,s Dean Center for Tick ... Physical Medicine and Rehabilitation, MIT Hacking Medicine, University ... for Innovation, today announced the five finalists of ... for Lyme disease.  More than 100 scientists, clinicians, ...
(Date:6/24/2016)... and SAN CLEMENTE, Calif. , June ... -based mobile pulmonary function testing company, is now able to ... devices developed by ndd Medical Technologies , Inc. ... done in hospital-based labs.  Thanks to ndd,s EasyOne PRO ® , ... , can get any needed testing done in the comfort of ...
(Date:6/24/2016)... , June 24, 2016  Arkis BioSciences, ... less invasive and more durable cerebrospinal fluid treatments, ... funding.  The Series-A funding is led by Innova ... Fund, and other private investors.  Arkis, new financing ... instrumentation and the market release of its in-licensed ...
Breaking Medicine Technology: