Featured Research

from universities, journals, and other organizations

Adaptive statistical iterative reconstruction technique significantly reduces radiation dose associated with abdominal CT scans

Date:
August 20, 2010
Source:
American College of Radiology / American Roentgen Ray Society
Summary:
A new low-dose abdominal computed tomography (CT) technique called adaptive statistical iterative reconstruction (ASIR) can reduce the radiation dose associated with abdominal CT scans by 23-66 percent, according to a new study. Abdominal CT scans are typically used to help diagnose the cause of abdominal or pelvic pain and diseases of the internal organs, bowel and colon.

A new low-dose abdominal computed tomography (CT) technique called adaptive statistical iterative reconstruction (ASIR) can reduce the radiation dose associated with abdominal CT scans by 23-66 percent, according to a study in the September issue of the American Journal of Roentgenology. Abdominal CT scans are typically used to help diagnose the cause of abdominal or pelvic pain and diseases of the internal organs, bowel, and colon.

ASIR 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 reducing the radiation dose.

The study, performed at the Mayo Clinic in Scottsdale, AZ, included 53 patients who underwent contrast-enhanced abdominal low-dose CT with 40 percent ASIR. All 53 patients had previously undergone contrast-enhanced routine-dose CT with filtered back projection (FBP). The average dose reduction using the ASIR technique (compared to routine-dose CT with FBP) was 66 percent for patients with a body mass index (BMI) of less than 20 and 23 percent for patients with a BMI of 25 or greater. "A significant difference," said Amy K. Hara, MD, lead author of the study.

"The results of this study show that low-dose abdominal CT with ASIR is a viable technique with image quality that is nearly comparable to that of our routine dose techniques and is worthy of further study," said Hara.


Story Source:

The above story is based on materials provided by American College of Radiology / American Roentgen Ray Society. Note: Materials may be edited for content and length.


Cite This Page:

American College of Radiology / American Roentgen Ray Society. "Adaptive statistical iterative reconstruction technique significantly reduces radiation dose associated with abdominal CT scans." ScienceDaily. ScienceDaily, 20 August 2010. <www.sciencedaily.com/releases/2010/08/100820115042.htm>.
American College of Radiology / American Roentgen Ray Society. (2010, August 20). Adaptive statistical iterative reconstruction technique significantly reduces radiation dose associated with abdominal CT scans. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2010/08/100820115042.htm
American College of Radiology / American Roentgen Ray Society. "Adaptive statistical iterative reconstruction technique significantly reduces radiation dose associated with abdominal CT scans." ScienceDaily. www.sciencedaily.com/releases/2010/08/100820115042.htm (accessed August 21, 2014).

Share This




More Health & Medicine News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Newsy (Aug. 21, 2014) An experimental drug used to treat Marburg virus in rhesus monkeys could give new insight into a similar treatment for Ebola. Video provided by Newsy
Powered by NewsLook.com
Cadavers, a Teen, and a Medical School Dream

Cadavers, a Teen, and a Medical School Dream

AP (Aug. 21, 2014) Contains graphic content. He's only 17. But Johntrell Bowles has wanted to be a doctor from a young age, despite the odds against him. He was recently the youngest participant in a cadaver program at the Indiana University NW medical school. (Aug. 21) Video provided by AP
Powered by NewsLook.com
Possible Ebola Patient in Isolation at California Hospital

Possible Ebola Patient in Isolation at California Hospital

Reuters - US Online Video (Aug. 20, 2014) A patient who may have been exposed to the Ebola virus is in isolation at the Kaiser Permanente South Sacramento Medical Center. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Reasons Why Teen Birth Rates Are At An All-Time Low

Reasons Why Teen Birth Rates Are At An All-Time Low

Newsy (Aug. 20, 2014) A CDC report says birth rates among teenagers have been declining for decades, reaching a new low in 2013. We look at several popular explanations. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins