Navigation Links
Appropriate timing in the use of breast shields in children can further reduce MDCT radiation dose
Date:2/12/2008

Using breast shields during pediatric chest MDCT reduces radiation dose and minimally increases image noise, according to a recent study conducted by researchers at Duke University Medical Center in Durham, NC and the University of Arkansas for Medical Sciences and Arkansas Childrens Hospital in Little Rock.

It's important for radiologists to limit dose in CT, especially to children, and especially to radiosensitive regions, such as breast tissue; and radiologists should be familiar with strategies to do this, said Donald P. Frush, MD, lead author of the study. Two strategies are breast shielding, and the other is automatic tube current modulation (ATCM). However, the combination of the shield and ATCM may not be effective since the equipment might increase the dose to penetrate the shield, said Dr. Frush. We wanted to see if there was a way to circumvent this and in fact there was: by placing the shields on the patient after the topogram (scout) from which the tube current would be modulated. This was tested using a GE scanner and it may not work with other scanners, he said.

Researchers performed MDCT on the chest an anthropomorphic phantom that represented a 5-year-old child. They obtained two scans in each of four sequences: without the shield, with a 2-ply bismuth shield, ATCM after placement of the shield and ATCM before placement of the shield.

The study showed that the bismuth breast shield reduced radiation dose to the breast by 26% and shielding and ATCM reduced the dose by 52%. The study also showed that multiple organ doses were lowest when the shield was placed after the scout radiograph was obtained. With this technique, image noise increased, but the images were still of good quality.

Radiologists need to understand their equipment's ATCM before using shielding. Parents should inquire about dose reduction strategies before their child undergoes a CT scan and physicians who refer pediatric patients to radiologists should understand that research is continuing to minimize radiation dose in CT, said Dr. Frush.


'/>"/>

Contact: Necoya Tyson
necoya@arrs.org
703-858-4304
American Roentgen Ray Society
Source:Eurekalert

Related medicine news :

1. Geriatrician Care Guards Against Risk of Inappropriate Meds
2. Study Finds New Version of QIAGENs HPV Test for Developing Countries Could Reduce Risk of Cervical Cancer by More than Half When Combined With Appropriate Treatment
3. American Heart Association Surgical Supplement Journal Report: Appropriate Hospital Discharge System Can Prevent Future Cardiac Events
4. Childhood asthma still inappropriately treated in the UK
5. AUDIO from Medialink and AXA Equitable: Timing Retirement Thinking
6. T cell immunity enhanced by timing of interleukin-7 therapy
7. eDiets.com(R) Updates Timing of Third Quarter 2007 Earnings Conference Call
8. Despite Oncologists Willingness to Prescribe Avastin for Treatment of Breast Cancer, the FDA is Likely to Rule Against the Product on February 23
9. Most Breast Cancer Web Pages Contain Reliable Information
10. Predictors of inaccurate online breast cancer information
11. Review of online breast cancer information encourages healthy skepticism for consumers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2017)... Va. (PRWEB) , ... July 28, 2017 , ... ... of the Military Officers Association of America (MOAA), has announced the grant recipients ... portion of the $25,000 in grants:, , Falcon’s Landing ...
(Date:7/28/2017)... ... July 28, 2017 , ... Nominated for ... Chain Partners for 2017. MEBC received numerous client nominations from customers who ... Berger, SupplyChainBrain’s publisher, says “For 15 years running, SupplyChainBrain has published our much-anticipated ...
(Date:7/28/2017)... (PRWEB) , ... July 28, 2017 , ... ... today released its 2014-2017 summary report on the Global Advisory Panel on the ... healthcare challenges and priority professional issues gathered during the past three years at ...
(Date:7/28/2017)... ... July 28, 2017 , ... Date aired: July 17th, 2017 , Guest: ... of first generation immigrants before her, Rose Hong came to America to realize a ... the part of loving parents who made sure their daughter got to the U.S. ...
(Date:7/28/2017)... ... 28, 2017 , ... For over 20 years Sealy Baby has been creating ... We take tremendous pride in using some of nature’s best materials while integrating today’s ... innovative crib mattresses and crib bedding for infants and toddlers. ...
Breaking Medicine News(10 mins):
(Date:7/13/2017)... Medical Products, a leader in medical product innovation and global patient ... for hospice patient care. ... Centurion Medical Products ... pain management and emotional comfort are part of a hospice,s primary ... preventing unneeded emergency department admission due to severe fecal impaction. One ...
(Date:7/13/2017)... July 13, 2017  New York City-based market research firm ... should be aware of.  From new products to new costs, ... in a recently completed study, Potential Pipeline Disruptors . ... 1.  Age-Driven Growth - True Impact ... aware of the impact the growing population and, to a ...
(Date:7/12/2017)... July 12, 2017  Eli Lilly and Company (NYSE: ... generic companies to resolve pending patent litigation in the U.S. ... regarding the Cialis ® (tadalafil) unit dose ... 26, 2020. As part of the agreement, Cialis exclusivity is ... 2018. "The unit dose patent for Cialis is ...
Breaking Medicine Technology: