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:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association (VNA) ... a collection of specialty vendors and unique items from across the nation, this holiday-themed ... and wellness services offered by the VNA. The boutique will be open Saturday, ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... Yisrayl Hawkins, ... week that explains one of the most popular and least understood books in the ... cryptic and puzzling descriptions that have baffled scholars for centuries. Many have tossed it ...
(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the Mountains to ... to save lost souls in the Philippines. “The Journey: From the Mountains to the ... teacher of the Bible. She has taught all ages and currently teaches a class ...
(Date:10/12/2017)... CA (PRWEB) , ... October 12, 2017 , ... ... Cheng, are now treating sleep apnea using cutting-edge Oventus O2Vent technology. ... a serious sleep disorder characterized by frequent cessation in breathing. Oral appliances can ...
(Date:10/12/2017)... PALM CITY, Fla. (PRWEB) , ... October 12, 2017 , ... ... of cold therapy products, announced today the introduction of an innovative new design of ... the multipurpose pad so you get maximum comfort while controlling your pain while using ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... 2017  BioPharmX Corporation (NYSE MKT: BPMX) researchers were ... innovative way to use nonlinear optical imaging to confirm ... drugs. A ... show how researchers from BioPharmX and the Wellman Center ... a suite of imaging techniques in what is called ...
(Date:10/11/2017)... 2017  True Health, a leader in integrated ... during National Breast Cancer Awareness month to educate ... Research recently published ... more than 10 million American women are at ... or BRCA2 and have not had testing. These mutations ...
(Date:10/10/2017)...  NDS received FDA 510(k) clearance in May 2017 for its ... specifically designed for endoscopy environments. An innovative secondary monitor solution, ZeroWire ... to support the improvement of patient outcomes, procedural efficiency, and the ... ... ...
Breaking Medicine Technology: