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:6/25/2016)... ... June 25, 2016 , ... Austin residents seeking Mohs surgery services, can now ... and to Dr. Russell Peckham for medical and surgical dermatology. , Dr. Dorsey brings ... The selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey was under the ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson has dedicated ... has implemented orthobiologic procedures as a method for treating his patients. The procedure ... doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use to ...
(Date:6/24/2016)... ... ... June 19, 2016 is World Sickle Cell Observance Day. In an effort to ... treatments, Serenity Recovery Center of Marne, Michigan, has issued a pain management ... (SCD) is a disorder of the red blood cells, which can cause episodes of ...
(Date:6/24/2016)... ... June 24, 2016 , ... Comfort Keepers® of San Diego, CA is excited ... To Recovery® program to drive cancer patients to and from their cancer treatments. ... highest quality of life and ongoing independence. Getting to and from medical treatments ...
(Date:6/24/2016)... ... 24, 2016 , ... Puradigm® & Innovative Solutions today announced ... and processing operations at its production facility, and opened its first two dispensaries ... manufacturer of a complete system of proactive air and surface purification solutions for ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- The Academy of Managed Care Pharmacy (AMCP) today ... allow biopharmaceutical companies to more easily share health care ... coverage decisions, a move that addresses the growing need ... The recommendations address restrictions in the sharing of product ... a prohibition that hinders decision makers from accessing HCEI ...
(Date:6/24/2016)... , June 24, 2016 Research ... World Market for Companion Diagnostic Tests" report to their ... Market for Companion Diagnostics The World Market ... and personalized medicine diagnostics. Market analysis in the report includes ... Test Market (In Vitro Diagnostic Kits) by Region (N. America, ...
(Date:6/24/2016)... Belgium , June 24, 2016 ... today announced the appointment of Dr. Edward ... as a Non-Executive Director, effective June 23, 2016.Dr. ... Compensation and Nominations and Governance Committees.  As a ... will provide independent expertise and strategic counsel to ...
Breaking Medicine Technology: