Navigation Links
Moffitt Cancer Center researchers develop automated breast density test linked to cancer risk
Date:2/1/2013

Researchers at Moffitt Cancer Center and colleagues at the Mayo Clinic in Rochester, Minn., have developed a novel computer algorithm to easily quantify a major risk factor for breast cancer based on analysis of a screening mammogram. Increased levels of mammographic breast density have been shown in multiple studies to be correlated with elevated risk of breast cancer, but the approach to quantifying it has been limited to the laboratory setting where measurement requires highly skilled technicians. This new discovery opens the door for translation to the clinic where it can be used to identify high-risk women for tailored treatment.

"We recently developed an automated method to estimate mammographic breast density that assesses the variation in grayscale values in mammograms," explained study lead author J. Heine, Ph.D., associate member of the Cancer Epidemiology Program and Cancer Imaging and Metabolism Department at Moffitt.

According to the authors, mammographic breast density, or the proportion of fibroglandular tissue pictured on the mammogram, is an established risk factor for breast cancer. Women with high mammographic breast density have a greater risk of developing breast cancer. However, mammographic breast density has not been used in clinical settings for risk assessments due in large part to the lack of an automated and standardized measurement.

Using their new method, the researchers compared the accuracy and reliability of their measurements of variation in breast density with the performance of tests that use the degree of dense breast tissue in a mammogram to assess breast cancer risk. A study describing their novel method and its utility was published in a recent issue of the Journal of the National Cancer Institute.

According to Heine, they found that the variation measure was a "viable, automated mammographic density measure that is consistent across film and digital imaging platforms" and "may be useful in the clinical setting for risk assessment."

In addition, they found that the association between variation and the risk of breast cancer was strong for mammograms carried out four years prior to diagnosis. The automated method also made clearer distinctions between breast cancer case subjects and controls who did not have breast cancer.

While many clinicians use the risk predictive value of percent of breast density seen on the mammogram as the amount or proportion of bright tissue in an image, Heine and his co-authors found the variation of dense tissue is also relevant to breast cancer, suggesting a relationship between percent of breast density and variation in breast density.

"The strengths of this study include the evaluation and validation of a novel breast density measure across three well-designed epidemiological studies," said study co-author Thomas A. Sellers, Ph.D., M.P.H., center director of Moffitt. "Because we were able to compare this novel breast density measure with an established percent density measure that was available four years before diagnosis, we were allowed to show that variation was present for at least four years, and in some cases, more than eight years. Offering clinicians and patients the advantage of more timely, reliable and accurate risk could open the door for interventions to lower risk and, hopefully, prevent the disease from occurring."

The researchers concluded that the simplicity of the measure, and the ability to standardize and automate the measure across sites, could hold promise for clinicians and their patients if the measurements were incorporated into clinical risk assessment practices.


'/>"/>

Contact: Kim Polacek
kim.polacek@moffitt.org
813-745-7408
H. Lee Moffitt Cancer Center & Research Institute
Source:Eurekalert

Related medicine news :

1. Moffitt researchers find cancer therapies affect cognitive functioning among breast cancer survivors
2. Moffitt Cancer Center researchers: Quality of life as important as quantity of life
3. Moffitt Cancer Center researchers working at frontiers of melanoma research
4. Moffitt researchers find adolescents with cancer concerned about their future reproductive health
5. Moffitt researcher publishes book on nutritional management of cancer treatment effects
6. Moffitt researcher awarded GE grant to develop tool to detect breast cancer metastasis genetic risks
7. Researchers creating designer lymph nodes based on Moffitts Total Cancer Care initiative
8. Moffitt Cancer Center researchers identify drivers of sarcoma growth and survival
9. Moffitt Cancer Center researchers develop and test new anti-cancer vaccine
10. Moffitt researcher, colleagues find success with new immune approach to fighting some cancers
11. Moffitt researchers: Darwins principles say cancer will always evolve to resist treatment
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/21/2017)... , ... September 21, 2017 , ... 38-Year-Old Plastic Surgeon ... Center in Naples, Florida is pleased to announce that Plastic Surgeon Kiranjeet Gill has ... 40 Under 40 is an annual award that was started in 2003 to ...
(Date:9/21/2017)... ... September 21, 2017 , ... ... Report**, http://www.fdanews.com/products/54818-promotional-communication      , In the competitive world of drug and device ... staying in compliance with FDA rules. , The FDA has issued two draft ...
(Date:9/21/2017)... ... , ... In addition to sticking with the new years ... and use natural alternatives for all house cleaning products, disinfectants, respiratory relief, and ... the new line of essential oils, are all 100% organic and natural. , ...
(Date:9/21/2017)... ... September 21, 2017 , ... Japanese Zen artist couple, ... Revolution” on 6th, 7th and 8th October at Miranda Kuo Gallery on Lower East ... pieces, such as Zen Kodo mat. Wanderlust , one of the largest US ...
(Date:9/21/2017)... ... 21, 2017 , ... Coffey Agencies, a full service insurance ... is embarking on an extended charity drive to encourage local residents to engage ... US Breast Cancer statistics show that over a quarter million new cases of ...
Breaking Medicine News(10 mins):
(Date:9/1/2017)...  Bayer will present the latest research from across its ... (ESMO) 2017 Congress, September 8-12 in Madrid, Spain ... clinical data on Bayer,s marketed portfolio and late-stage compounds as ... "We value the opportunity to ... at ESMO," said Carsten Brunn , Head of Pharmaceuticals, ...
(Date:8/29/2017)... Aug. 29, 2017 ivWatch, LLC, the leading provider of ... announced it has been awarded an Innovative Technology contract from Vizient, ... country. ... to aid in the early detection of peripheral IV infiltration and ... The Innovative Technology contract was ...
(Date:8/28/2017)... -- Hill-Rom Holdings, Inc. (NYSE: HRC), will present at the ... in New York . John Greisch ... present at 11:05 a.m. Eastern Time. The ... A recorded replay will be available one hour after the ... About Hill-Rom Holdings, Inc. ...
Breaking Medicine Technology: