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:3/27/2017)... ... 27, 2017 , ... The Association of Healthcare and Value ... their first Northeast Regional AHVAP Meeting. For 2017, Dr. Hayes will provide the ... value analysis professionals have a ‘seat at the table’ with clinical committees when ...
(Date:3/27/2017)... ... March 27, 2017 , ... Sodium determination is consistently becoming ... require expert user knowledge. In a live webinar on April 11th and October ... highly accurate, determination of sodium. , It has long been known that too ...
(Date:3/27/2017)... Fla. (PRWEB) , ... March 27, 2017 , ... ... overdose deaths soared 167%,(1) with opioids alone responsible for over 33,000 of the ... McCarty has sponsored Assembly Bill (AB) 1512, which proposes a tax on prescription ...
(Date:3/25/2017)... ... ... Getting earned media coverage meaningful for Garden Media Group's clients is the ... Garden Media aims to provide material helpful to clients’ goals and bottom lines. By ... messages to gain coveted media placements, Garden Media wows clients year-round. , Here ...
(Date:3/24/2017)... ... March 24, 2017 , ... ... will spark a conversation on the current obstacles facing infection prevention and offer ... preventable deaths caused by these infections. , The print component of “Fighting ...
Breaking Medicine News(10 mins):
(Date:3/27/2017)... March 27, 2017  PhaseRx, Inc. (NASDAQ: PZRX), ... inherited liver diseases in children, today reported financial ... ended December 31, 2016 and provided an update ... continued to make progress during the fourth quarter ... from our non-human primate safety study, and with our ...
(Date:3/24/2017)... Research and Markets has announced the ... report to their offering. ... The Cell Therapy Manufacturing Market, 2017-2027 report ... cell therapy manufacturing and focuses both on contract manufacturers and ... anticipated to emerge as viable alternatives to conventional treatment options. ...
(Date:3/24/2017)... , March 24, 2017  Zymo ... company, and Hamilton Robotics, Inc., who designs, ... an ongoing collaboration that teams Zymo Research,s ... RNA and DNA extraction products with Hamilton,s ... created optimized methods for microbiomics and RNA ...
Breaking Medicine Technology: