Navigation Links
Iterative reconstruction technique significantly reduces patient radiation dose during CT scans
Date:8/18/2009

Computed tomography (CT) scans are responsible for more than two thirds of the total radiation dose associated with medical imaging exams. However, a newly adapted low-dose technique called adaptive statistical iterative reconstruction (ASIR) may enable radiologists to reduce patient radiation resulting from CT up to 65 percent, according to a study published in the September issue of the American Journal of Roentgenology (AJR).

Iterative reconstruction is a technique that allows radiologists to reduce the noise in an image and improve image quality (like adjusting a TV antenna to make a "fuzzy" image sharper) while significantly reducing the radiation dose.

CT scans using the newly adapted low-dose ASIR method and the standard dose method without ASIR were performed both on a phantom and 12 patients. "We found nearly identical image quality using the reduced dose CT method with ASIR compared with the standard dose CT method without ASIR," said Amy Hara, MD, lead author of the study, performed at the Mayo Clinic Arizona in Scottsdale. "In our study, patient radiation doses were reduced up to 65 percent using the low-dose IR method. The average radiation dose delivered during the low-dose CT with IR was 470 mGy; the average dose delivered using the standard dose CT without IR was 894 mGy," she said.

"Finding a way to reduce radiation dose for routine body CT imaging has been an ongoing concern for many. Our study is significant because it shows that the low-dose ASIR method can significantly decrease the radiation dose along with the many risks associated with radiation exposure. In future studies, it will be important to not only evaluate image quality but to assess diagnostic accuracy. ASIR is new to CT but in our practice it has been very successful," said Dr. Hara.


'/>"/>

Contact: Heather Curry
hcurry@acr-arrs.org
703-390-9822
American Roentgen Ray Society
Source:Eurekalert

Page: 1

Related medicine news :

1. Nfocus Neuromedical Obtains CE Approval for New Vascular Reconstruction Device
2. Risks of Delaying ACL Reconstruction in Young Athletes May Be Too High, Study Shows
3. Park Meadows Cosmetic Surgery, a Pioneer in DIEP Flap Breast Reconstruction Surgery in Colorado, Introduces New, Informative Website
4. Houston Plastic Surgeon Cites ‘Therapeutic' Benefits for Women that Choose Breast Reconstruction After Mastectomy
5. Elbow Ligament Reconstruction Appears Not to Effect Future Professional Advancement in Baseball
6. Elbow ligament reconstruction appears not to effect future professional advancement in baseball
7. Studies evaluate the anatomy and stability of ACL reconstruction with different techniques
8. Growing Preference for Composite Materials in Shoulder Fixation and Knee Ligament Reconstruction Markets
9. Type of breast reconstruction impacts radiation therapy outcomes
10. Wealthy More Likely to Have Breast Reconstruction
11. Two Colorado Surgeons Become Pioneers In Microsurgical DIEP Flap Breast Reconstruction
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... PurhealthRX ... CBD Oil utilizing Purzorb™ technology. Applying the Purzorb™process to full spectrum CBD oil will ... and providing a CBD form that can be easily incorporated into liquid products, while ...
(Date:10/13/2017)... ... , ... The Visiting Nurse Association (VNA) of Somerset Hills is proud to ... unique items from across the nation, this holiday-themed event will raise funds and awareness ... VNA. The boutique will be open Saturday, November 4 (10:00 a.m. – 5:00 ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... Software Development, has been awarded a contract by the Center for Medicare and ... aims to accelerate the enterprise use of Agile methodologies in a consistent and ...
(Date:10/12/2017)... , ... October 12, 2017 , ... Planet Fitness, one ... U.S., announced today its plans to open a flagship location in Covington, LA at ... former Rooms To Go store next to Office Depot in the Holiday Square shopping ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... delivery system that we intend to develop to enable prevention of a major ... to severe hearing loss, especially in pediatric patients. For cisplatin, hearing loss is ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... 2017  NDS received FDA 510(k) clearance in May 2017 for ... stand specifically designed for endoscopy environments. An innovative secondary monitor solution, ... solution to support the improvement of patient outcomes, procedural efficiency, and ... ... ...
(Date:10/4/2017)... 2017  South Korean-based healthcare product Development Company I.M. ... on Kickstarter. The device will educate the user about ... better efficiency compared to the dated and pricey CPR ... efficacy of the compression for a more informed CPR ... to raise $5,000. ...
(Date:10/2/2017)...  Eli Lilly and Company (NYSE: LLY ... quarter of 2017 on Tuesday, October 24, 2017. Lilly ... with the investment community and media to further detail ... will begin at 9 a.m. Eastern time. Investors, media ... of the conference call through a link that will ...
Breaking Medicine Technology: