Navigation Links
Stereoscopic mammography could reduce recall rate
Date:11/13/2012

OAK BROOK, Ill. A new three-dimensional (3-D) digital mammography technique has the potential to significantly improve the accuracy of breast cancer screening, according to a study published in Radiology.

Two-dimensional (2-D) x-ray mammography, the current primary screening method for early detection of breast cancer in women, is a valuable tool but has some limitations. Surrounding normal tissue can mask lesions, and 2-D views do not provide direct information about the volumetric appearancemeaning the three-dimensional physical shapeof a detected lesion.

A novel technique called stereoscopic digital mammography (SDM) addresses these limitations by mimicking the way that human eyes work together to form a 3-D image. The technique uses digital mammography equipment that's been modified to allow the X-ray tube to move separately from the cassette. The resulting images are viewed on two monitors mounted one above the other.

"Our eyes see the world from two slightly different perspectives," said Carl J. D'Orsi, M.D., from the Department of Radiology and Imaging Sciences at Emory University School of Medicine and the Winship Cancer Institute at Emory University, both in Atlanta. "In this technique, the X-ray tube functions as the eyeball, with two different images providing slightly different views of the internal structure of the breast."

By using a unique workstation and polarizing lenses, SDM has the ability to identify lesions at different depths within the breast volume, potentially reducing both false positive findings and recalls while enabling more accurate diagnosis.

Dr. D'Orsi and colleagues recently compared SDM to 2-D digital mammography in 779 patients at elevated risk of developing breast cancer because of personal or family history. Patients received both exams in a single visit, and two experienced radiologists independently interpreted the final total of 1,298 exams. Imaging findings were correlated with results of one-year follow up or biopsy.

SDM significantly improved the accuracy of cancer detection. The specificity of 91.2 percent was better than the 87.8 percent rate for 2-D digital mammography; and the accuracy of 90.9 percent, compared with 87.4 percent for 2-D digital mammography, was also a statistically significant improvement.

"We found that the stereoscopic technique could significantly decrease the need for calling women back for additional exams," Dr. D'Orsi said.

Dr. D'Orsi and colleagues are expanding their research to study

SDM with a lower radiation dose in the general screening population. The radiation dose used in the study was approximately double the standard dose for mammography.

"In this study, we used a high-risk population to get an adequate number of cancers, and we acquired each of the images comprising the stereo pairs with a full standard X-ray dose," he said. "Now that we know the technique is worthwhile, we're repeating the study in the general population with a dose comparable to routine screening mammography."


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

Related medicine news :

1. Women in less affluent areas of Chicago less likely to reside near mammography facility
2. Mammographys Benefits Outweigh Harms for Older Women: Study
3. U.S. Mammography Rates Drop Following Task Force Recommendations
4. Research examines when benefits of screening mammography outweigh the harms for women in their 40s
5. Study finds mammography beneficial for younger women
6. Could iPads, Kindles Be Just What the Eye Doctor Ordered?
7. Testing pain killers on humans could save money and speed the arrival of new drugs
8. New cells found that could help save peoples sight
9. Could an Aging Face Reflect an Unhealthy Heart?
10. Virtual reality could help people lose weight, fight prejudice
11. Cancer data in the cloud could lead to more effective treatment
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/23/2017)... , ... June 23, 2017 , ... Military Connection ... recently denied entry to the JFK Virgin Atlantic lounge. , Bensko is no ... wheelchair six years ago, Bensko dedicated her life to supporting our wounded veterans. A ...
(Date:6/23/2017)... ... 2017 , ... Georgia State University will host the First ... two-day conference is focused on advancing scientific knowledge about the aggressive triple negative ... racial breast cancer-related disparities. The conference theme is “Illuminating Actionable Biology.” , Conference ...
(Date:6/23/2017)... ... 23, 2017 , ... American Farmer, will feature Chr. Hansen, Inc (CHR Hansen) ... fourth quarter 2017. American Farmer airs Tuesdays at 8:30aET on RFD-TV. Check your local ... Hansen in Denmark in 1874 after a groundbreaking discovery of how to industrialize enzymes. ...
(Date:6/23/2017)... ... June 23, 2017 , ... Radabaugh ... planning to families and business owners in North Central West Virginia, is embarking ... services to differently abled residents in the region. , The Stepping Stones organization ...
(Date:6/22/2017)... ... June 22, 2017 , ... Groove Ring is excited ... about their high performance silicon wedding bands and all-purpose rings. Whether you’re an athlete, ... silicone rings designed just for you. , From the rock face to the auto ...
Breaking Medicine News(10 mins):
(Date:6/16/2017)... Corp. is voluntarily performing a worldwide field correction of certain Intra-Aortic Balloon Pumps ... ... CS100i IABP ... 0998-UC-0446HXX; 0998-UC-0479HXX 0998-00-3013-XX;  0998-UC-3013-XX 0998-00-3023-XX;  0998-UC-3023-XX ... This field correction also applies to any System 98 or ...
(Date:6/14/2017)...  In 2016, Embodied Labs took top ... and came away with $25,000 in seed-fund investment. Embodied ... as "entering the life of another" and by the ... to medical professionals in an entirely new dimension." Building ... finalist for the Department of Education,s EdSimChallenge, where they ...
(Date:6/10/2017)... BESSEMER, Ala. , June 9, 2017  Shane K. Burchfield, ... Member recognized for excellence as a Podiatrist in Alabama ... of Podiatry at Family First Foot Care. He brings over 20 ... sports medicine, pain management and healthcare, to his role. ... Family First Foot Care, PC is pleased to welcome ...
Breaking Medicine Technology: