Navigation Links
Radiation dose can be reduced for 'triple rule-out' coronary CT angiography
Date:4/3/2009

Physicians can dramatically reduce the radiation dose delivered to patients undergoing coronary CT angiography in a "triple rule-out" protocol by simply using tube current modulation, according to a study performed at Thomas Jefferson University Hospital in Philadelphia, PA.

The study included 172 patients who were evaluated using coronary CT angiography without tube current modulation and 95 patients who were evaluated with tube current modulation. The effective radiation dose ranged between 9.9 and 31.3 mSv in patients without modulation; the dose ranged between 5.4 and 16.6 mSv in patients with modulation. "Image quality was comparable to when we didn't use tube current modulation," said Kevin M. Takakuwa, MD, lead author of the study.

"One of the major criticisms of the triple rule out coronary CT angiography study is the concern about the high amount of radiation given, which has been estimated by some to be as high as 30-40 mSv. Our study demonstrates that the radiation is a lot less, averaging less than 9 mSv when using tube current modulation. In addition, it uses less radiation than a nuclear stress test, a common alternative study to the triple rule-out cardiac CT," he said.

"Cardiac CT in a "triple rule-out" protocol allows us to look for coronary artery disease, aortic dissections and pulmonary emboli. These are three potentially life-threatening causes of chest pain that we cannot afford to miss in the emergency room. When we perform this test on undifferentiated chest pain patients we are able to identify disease entities that cannot be made with nuclear stress testing. For example, we have diagnosed metastatic cancers, pulmonary embolism and pneumonia that would have been missed by stress testing alone. Cardiac CT is also much quicker than a stress test and can save people from getting an invasive cardiac catheterization," said Dr. Takakuwa.

"Our goal is to be able to perform cardiac CT using tube current modulation 24/7 and as a means to be able to admit or discharge patients more rapidly," he said.


'/>"/>

Contact: Heather Curry
hcurry@arrs.org
703-858-4304
American Roentgen Ray Society
Source:Eurekalert

Related medicine news :

1. Informational handout key to giving parents a better understanding of CT radiation risks
2. Prophylactic cranial irradiation in small cell lung cancer significantly increases survival
3. Different method of evaluating the urinary tract system reduces radiation dose
4. Radiation and drug combo helps boost efficacy of lung cancer treatment
5. Nucletron Announces Management Buy-Out to More Effectively Meet the Demands of Its Customers and the Radiation Therapy Community
6. Radiation therapy technique reduces length of prostate cancer treatment
7. Radiation therapy technique reduces length of prostate cancer treatment
8. Jefferson radiation oncologists use real-time system to plant seeds against cancer
9. Radiation Therapy Services Acquires North Carolina Facility
10. NASA, NSBRI Select 17 Proposals in Space Radiation Research
11. Breast Cancer Radiation Wont Hurt Immune Health
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/5/2016)... ... 2016 , ... Spring Fertility , the only fertility ... egg freezing, today announced the grand opening of its first location in San ... Fertility offers both fertility preservation (egg, sperm, embryo, and testicular and ovarian tissue ...
(Date:5/5/2016)... ... May 05, 2016 , ... ... Wharton Seminars for Business Journalists , led by the Wharton School’s ... and economic issues.  This one-day program at the Wharton School’s San Francisco ...
(Date:5/5/2016)... ... May 05, 2016 , ... United Benefit Advisors (UBA), ... as the latest addition to its family of Partner Firms. Headquartered in Mount ... wellness, human resources, and health care consumerism specialists. , “Partnering with UBA will ...
(Date:5/5/2016)... ... May 05, 2016 , ... ... Make-A-Wish grants the most heartfelt wishes of these children. The wishes provide ... treatment. President and CEO of Make-A-Wish Mississippi, Brent Wilson said, “In 2016, ...
(Date:5/5/2016)... ... May 05, 2016 , ... Michael Lanteri Agency ... created to assist the people of their local community. The agency pledges to ... community leaders. Their hope is to bring awareness to important local causes with ...
Breaking Medicine News(10 mins):
(Date:5/4/2016)... Research and Markets has ... Ischemic Stroke Market and Competitive Landscape Highlights ...      (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO ) ... Market and Competitive Landscape Highlights 2016, provides ... products, Acute Ischemic Stroke epidemiology, Acute Ischemic ...
(Date:5/4/2016)... , May 4, 2016 ... addition of the  "Global Actinic Keratosis Market ... to their offering.       (Logo: ... Keratosis Market and Competitive Landscape Highlights 2016, ... products, Actinic Keratosis epidemiology, Actinic Keratosis market ...
(Date:5/3/2016)... 4, 2016 Global Insulin ... profiling 09 key companies and supported with 272 ... in-depth study on the current state of the ... the industry including definitions, classifications, applications and industry ... provided for the international market including development history, ...
Breaking Medicine Technology: