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:1/23/2017)... ... 2017 , ... The American Academy of Thermology ... healthcare training and clinical application of medical infrared imaging, has announced the dates ... Courses for Technicians, respectively. , For the first time the AAT is offering ...
(Date:1/23/2017)... ... January 23, 2017 , ... Steviva Ingredients, makers of all-natural ... USDA National Organic Program (NOP) for its Portland SQF Level 2 manufacturing facility. ... and handling systems to complement our current rigorous food-safety management systems,” said Yishu ...
(Date:1/23/2017)... ... January 23, 2017 , ... Gynecology ... care and gynecological services for women of all ages. The staff ... wide variety of reproductive services from routine health screenings to diagnosing and treating ...
(Date:1/23/2017)... (PRWEB) , ... January 23, 2017 , ... “Life Under ... and depression from an early age. “Life Under Blankets” is the creation of published ... of Illinois, Circle Campus in Chicago. She went on to pursue a master’s degree ...
(Date:1/22/2017)... ... 2017 , ... Zifam Pinnacle, an Australian company dedicated to providing a unique ... buyers at the January ECRM Trade Show in Hilton Head, SC. , Zifam Pinnacle ... in all of its creations to help create a more traditional and natural approach ...
Breaking Medicine News(10 mins):
(Date:1/23/2017)... , Jan. 23, 2017 MouthWatch LLC announced ... was ranked as the best intraoral camera on DentalCompare,s ... the #2 spot overall. The #1 product was the ... the MouthWatch intraoral camera was "…incredibly popular because it is ... camera has a small sticker price, it doesn,t sacrifice quality ...
(Date:1/23/2017)... YORK , Jan. 23, 2017  Delcath Systems, ... Company focused on the treatment of primary and metastatic ... , Ph.D., MSN, CRNP, President and Chief Executive Officer ... NobleCon13 - Noble Capital Markets, Thirteenth Annual Investor Conference ... Boca Raton, Florida , on Tuesday, January ...
(Date:1/23/2017)... , Jan. 23, 2017  Using Astute Medical,s ... high risk for acute kidney injury (AKI) after ... globally-recognized care guidelines significantly improved outcomes ... AKI more than 33 percent, according to a ... journal Intensive Care Medicine. ...
Breaking Medicine Technology: