Navigation Links
'Stereo' mammography takes breast imaging to a new dimension
Date:11/28/2007

CHICAGO Stereoscopic digital mammography, a new diagnostic technique capable of producing three-dimensional, in-depth views of breast tissue, could significantly reduce the number of women who are recalled for additional tests following routine screening mammography. Results of a clinical trial being conducted at Emory University Breast Clinic in Atlanta were presented today at the annual meeting of the Radiological Society of North America (RSNA).

Standard mammography is one of the most difficult radiographic exams to interpret, said David J. Getty, Ph.D., division scientist at BBN Technologies of Cambridge, Mass. In a two-dimensional image of the breast, subtle lesions may be masked by underlying or overlying normal tissue and thus be missed, and normal tissue scattered at different depths can align to mimic a lesion, leading to false-positive detections.

Stereoscopic digital mammography consists of two digital x-ray images of the breast acquired from two different points of view separated by about eight degrees. When the images are viewed on a stereo display workstation, the radiologist is able to see the internal structure of the breast in three dimensions. In the ongoing clinical trial, researchers use a full-field digital mammography unit modified to take stereo pairs of images. The workstation enables the mammographer to fuse the stereo image pair and to view the breast in depth.

Stereo viewing is the only way to see the structure within the breast volume in true depth, said Dr. Getty, who has been working on the development of the technology over the past 12 years.

As of July 2007, 1,093 patients at elevated risk for developing breast cancer were enrolled in the trial. Each patient received a full-field, standard digital mammography screening examination and a full-field, stereoscopic digital exam, which were then read independently by different radiologists.

A total of 259 suspicious findings were detected by the combined mammography procedures and were referred for additional diagnostic testing, including biopsy when indicated. Of those, 109 were determined to be true lesions. Standard mammography missed 40 of the 109 lesions while the stereoscopic exam failed to detect 24.

Our early results suggest that stereo digital mammography could contribute to the earlier detection of cancer, Dr. Getty said. A small percentage of the additional lesions missed by standard mammography but detected by stereoscopic mammography will turn out to be cancerous.

Of the 259 findings, 150 were false positives, meaning further testing revealed that no abnormality was present. Standard mammography yielded 103 false positives; stereo mammography yielded 53.

In our study, stereo digital mammography reduced false positives by 49 percent, said Dr. Getty. This could have a significant impact by cutting in half the number of women who are needlessly recalled for additional diagnostic work-ups, resulting in a large savings in cost and patient anxiety.

By the end of the clinical trial this December, a total of 1,500 women at elevated risk of developing breast cancer will have received both the stereo and standard digital mammography screening exams.

According to Dr. Getty, offering wide-scale stereoscopic digital mammography would entail minor changes to digital mammography equipment and software.


'/>"/>

Contact: Linda Brooks
lbrooks@rsna.org
630-590-7762
Radiological Society of North America
Source:Eurekalert

Related medicine news :

1. Stereotaxis Highlights New Data on Acute Success in AFib Treatments With Niobe Magnetic Navigation System
2. Forget the Old Stereotypes - New Survey Reveals that Baby Boomers Are Feeling More Young and Active than Ever!
3. Stereotaxis Showcases Interventional Cardiology Capabilities of Niobe Magnetic Navigation System
4. Stereotaxis Highlights Live Coronary and Peripheral Vascular Cases Performed at TCT With Stereotaxis Magnetic Navigation System
5. Ultrasound plus mammography finds more cancers, but increases false positives
6. American Cancer Society Marks National Mammography Day by Reinforcing Importance of Mammograms
7. Siemens Rolls Out Its First Mobile Digital Mammography System in the U.S.
8. Attitudes toward mammography differ across ethnicities, cultures, backgrounds
9. Understanding of Mammography Differs Among Races
10. New mammography technology improves cancer detection
11. Free will takes flight: how our brains respond to an approaching menace
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... Little Rock, AR (PRWEB) , ... October 13, ... ... owned firm with locations throughout Arkansas that offers insurance and financial preparation services, ... to benefit the Rock City Rescue organization. , Rock City Rescue is a ...
(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)... Fairfax, VA (PRWEB) , ... October 13, 2017 ... ... provider of DevOps and Agile Software Development, has been awarded a contract by ... (EATS) Blanket Purchase Agreement (BPA) aims to accelerate the enterprise use of Agile ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the largest and ... plans to open a flagship location in Covington, LA at 401 N. U.S. Highway ... store next to Office Depot in the Holiday Square shopping center. Its location allows ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... 2017   Divoti USA will engrave and ... standard of the latest FDA requirements, which stipulates new criteria regarding ... in need of Medical ID jewelry such as Medical ID Bracelets, ... engraved in terms of the new FDA requirements . ... Divoti offers this dark mark fiber ...
(Date:10/11/2017)... 11, 2017  Caris Life Sciences ® , a ... promise of precision medicine, today announced that St. Jude ... Oncology Alliance™ (POA) as its 17 th member. ... Jude Crosson Cancer Institute will help develop standards of ... tumor profiling, making cancer treatment more precise and effective. ...
(Date:10/10/2017)... ORANGE COUNTY, Calif. , Oct. 10, 2017  NDS received ... Mobile  — a medical-grade battery-powered display stand specifically designed for ... aims to transform technology into a clinical solution to support the ... costs. Innovative Design ... NDS ZeroWire Mobile Wireless Solution ...
Breaking Medicine Technology: