Navigation Links
Appropriate timing in the use of breast shields in children can further reduce MDCT radiation dose

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
American Roentgen Ray Society

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. 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:
(Date:6/24/2016)... Fla. (PRWEB) , ... June 24, 2016 , ... Global ... Trend magazine’s 2016 Legal Elite. The attorneys chosen by their peers for this recognition ... Florida. , Seven Greenberg Traurig Shareholders received special honors as members of this year’s ...
(Date:6/24/2016)... ... June 24, 2016 , ... Comfort Keepers® of San Diego, ... and the Road To Recovery® program to drive cancer patients to and from their ... to ensure the highest quality of life and ongoing independence. Getting to and ...
(Date:6/24/2016)... ... June 24, 2016 , ... People across the U.S. are sharpening their pencils ... an essay contest in which patients and their families pay tribute to a genetic ... 2016 National Society of Genetic Counselors (NSGC) Annual Education Conference (AEC) this September. ...
(Date:6/24/2016)... ... June 24, 2016 , ... ... to recognize Dr. Barry M. Weintraub as a prominent plastic surgeon and the ... in the world, and the most handsome men, look naturally attractive. Plastic surgery ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... ... is actively feeding the Frederick area economy by obtaining investment capital for emerging ... the past 2½ years that have already resulted in more than a million ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 2016 Revolutionary technology includes multi-speaker ... , industry leaders in advanced audiology and hearing aid ... Opn ™, the world,s first internet connected hearing aid ... devices.      (Photo: ) ... of ,world firsts,: , TwinLink™ - the ...
(Date:6/23/2016)... 2016 The vast majority of dialysis patients ... Treatments are usually 3 times a week, with treatment ... travel time, equipment preparation and wait time.  This regimen ... for patients who are elderly and frail.  Many elderly ... rehabilitation centers for some duration of time. ...
(Date:6/23/2016)... 23, 2016  Experian Health, the healthcare ... the patient payment and care experience, today ... products and services that will enhance the ... offerings. These award-winning solutions will enable healthcare ... compliant in an ever-changing environment and redefine ...
Breaking Medicine Technology: