Featured Research

from universities, journals, and other organizations

Breast CT Scanners Promise Painless Alternative To Mammography

Date:
August 7, 2008
Source:
American Institute of Physics
Summary:
The discomfort of a mammogram can drive some women to avoid the valuable screening, occasionally with dire consequences. Now a new procedure, dedicated breast computed tomography (CT), promises to take the pain out of breast cancer detection.

The discomfort of a mammogram can drive some women to avoid the valuable screening, occasionally with dire consequences. Now a new procedure, dedicated breast computed tomography (CT), promises to take the pain out of breast cancer detection.

In the cone beam breast CT scanner, which was first developed at the University of California, Davis, a woman lies face down on a special table with one breast suspended through an opening. A CT scanner rotates around the breast, collecting data that are reconstructed into a three-dimensional image. The total dose of radiation is the same as in a conventional mammogram.

Since 2004, the UC Davis researchers, led by John M. Boone, Professor and Vice Chair of Radiology and Professor of Biomedical Engineering, have scanned 160 women with their prototype scanner. In early 2008, the researchers began operating a second prototype device, into which the researchers have incorporated a positron emission tomography (PET) scanner. The PET scanner tracks the metabolic activity of a tumor, if present, so the hybrid CT/PET breast scanner would allow clinicians to, among other uses, precisely localize and monitor the response of a tumor to chemotherapy, determine the extent (or staging) of tumors, and help guide radiologists conducting biopsies.

The clinical trials show that the scanner "is better mammography for mass detection," Boone says, while "offering improved comfort to the patient and a better three-dimensional understanding of pathological lesions when they are present." The scanner, however, is less efficient than regular mammography at detecting the tiny clusters of calcium (or microcalcifications) that can sometimes signal breast cancer. This is because it uses X rays at higher energies than do mammograms, reducing the contrast of the images and the ability to distinguish the calcium clusters. "Thus, we are not making the claim that breast CT is "better" than mammography-yet," Boone says.

The research was described in the talk, "Dedicated Breast CT Imaging of the Breast," presented July 29, 2008 at the 50th annual meeting of the American Association of Physicists in Medicine.


Story Source:

The above story is based on materials provided by American Institute of Physics. Note: Materials may be edited for content and length.


Cite This Page:

American Institute of Physics. "Breast CT Scanners Promise Painless Alternative To Mammography." ScienceDaily. ScienceDaily, 7 August 2008. <www.sciencedaily.com/releases/2008/08/080805161902.htm>.
American Institute of Physics. (2008, August 7). Breast CT Scanners Promise Painless Alternative To Mammography. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2008/08/080805161902.htm
American Institute of Physics. "Breast CT Scanners Promise Painless Alternative To Mammography." ScienceDaily. www.sciencedaily.com/releases/2008/08/080805161902.htm (accessed September 2, 2014).

Share This




More Health & Medicine News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Get on Your Bike! London Cycling Popularity Soars Despite Danger

Get on Your Bike! London Cycling Popularity Soars Despite Danger

AFP (Sep. 1, 2014) Wedged between buses, lorries and cars, cycling in London isn't for the faint hearted. Nevertheless the number of people choosing to bike in the British capital has doubled over the past 15 years. Duration: 02:27 Video provided by AFP
Powered by NewsLook.com
Can You Train Your Brain To Eat Healthy?

Can You Train Your Brain To Eat Healthy?

Newsy (Sep. 1, 2014) New research says if you condition yourself to eat healthy foods, eventually you'll crave them instead of junk food. Video provided by Newsy
Powered by NewsLook.com
We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Liberia Continues Fight Against Ebola

Liberia Continues Fight Against Ebola

AFP (Aug. 30, 2014) Authorities in Liberia try to stem the spread of the Ebola epidemic by raising awareness and setting up sanitation units for people to wash their hands. Duration: 00:41 Video provided by AFP
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