Navigation Links
Google-Like Model Used To Diagnose Suspicious Breast Masses Quickly

Computers are used to get a second opinions on mammogram images, which show some suspicious looking breast masses. But this process is slow. //

In order to speed up the process, researchers from Duke University are employing a Google-like model that is able to get useful information from a mammogram database in three seconds flat.

Rather than comparing the mammogram image in question to every image of breast cancer in a computer database, the new approach compares the mammogram in question to selected images that are most highly ranked for their information content. This is analogous to how a Google search first returns a list of only those websites that it determines to have the most important and useful information on the words entered in the search. In a pilot study that will be presented in August at the 48th Annual Meeting of the American Association of Physicists in Medicine in Orlando, the approach enabled computers to maintain their high level of accuracy while performing faster analysis. Such speed and efficiency will be important as such image databases rapidly grow larger and more complex.

Knowledge-based computer-assisted detection (CAD) systems compare mammogram images to those of known cases of breast cancer in order to aid radiologists in their diagnosis. However, as clinical image libraries grow rapidly in mammography practice, knowledge-based CAD systems get slower and less efficient.

In efforts to prevent such systems from bogging down, Duke's Georgia D. Tourassi, Ph.D. (Georgia.tourassi@duke.edu) will present a Knowledge-Based Computer Assisted Detection (KB-CAD) system that analyzes breast masses using the principles of information theory.

When a new, unknown case is presented for analysis, the KB-CAD system compares the case to mammography images in the database. It retrieves cases that are similar, those that share certain visual features and properties. If the unknown case is s imilar enough to a known case of breast cancer, then this would suggest the presence of cancer.

Although diagnostically accurate, this practice becomes inefficient as the image database increases in size. Therefore, the researchers incorporate an additional approach.

Instead of comparing the new unknown case with all mammography images stored in the knowledge database, the researchers restrict the analysis to the stored cases that are most informative. The selection of the most informative cases is done using an image indexing strategy based on the concept of "image entropy." Image entropy represents a measure of the disorder or complexity in the image. An image that is all black or white has zero entropy. An image of a checkerboard has low entropy—it consists of an equal number of light and dark pixels. Complex images with more uniform distributions of many pixel intensity levels have higher entropy and are considered more informative in the context of the Duke system.

Normal breast tissue "can be as complex as a tumor," Tourassi says. "This is precisely the reason mammographic diagnosis is such a challenging task. Our database inlcudes normal cases as well in the decision-making process."

In the recent pilot study, the Duke researchers applied their technique to a database of 2,300 mammography images. With entropy indexing, the researchers compared a sample image to the top 600 most informative, cutting down their CAD system's processing time by one-fourth, to less than 3 seconds per query. The researchers expect to launch a larger study in a year to evaluate the clinical impact of this new approach.

Source: Eurekalert
'"/>




Related medicine news :

1. Researchers Develop Mouse Model Of Brain Tumor
2. New Model for understanding Tumor Metastasis
3. Mathematical Model Can Now Help Predict Asthma Risk
4. Model Kate Moss - Re-Birth After Humiliation
5. Womens Self-Esteem Not Lowered By Seeing Ultra Thin Models
6. India Can Become A Role Model In Combating HIV Infections
7. Mouse Models To Determine The Cause Of Aggressive Leukemia
8. Aussie Model Macpherson Hated Tall Figure
9. Mouse Model Beneficial to Study of Head and Neck Cancer
10. Tamil Nadu Emerging As Model State In Public Health Care: Governor
11. iSTART Brain Model Reveals the possible Cause of Autism
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/26/2016)... ... 26, 2016 , ... There are nearly 14.5 million people living with and ... On Sunday, June 5, 2016, communities around the world will gather to recognize these ... National Cancer Survivors Day® is an annual worldwide Celebration of Life that is held ...
(Date:5/26/2016)... ... 26, 2016 , ... In an effort to provide hair restoration information to the widest possible ... those who do not use the app. Dr. Mohebi, the founder of Parsa Mohebi Hair ... Live . , Dr. Mohebi says, “The positive response to the Snapchat videos we ...
(Date:5/26/2016)... ... May 26, 2016 , ... North Cypress Medical Center ... Blackhorse Golf Club in Cypress. With the help of community partners, the event organizers ... and renews hope for wounded service members and their families through health, wellness, and ...
(Date:5/26/2016)... TN (PRWEB) , ... May 26, 2016 , ... ... fitness education and products recently hosted the first PowerWave Instructor Certification Course in ... who lead a group of fitness professional through the 8 hour interactive course ...
(Date:5/26/2016)... ... May 26, 2016 , ... The introduction of our professional ... TO YOUR HEAD ™”. , “We are proud to introduce Meghan Klingenberg, ... front we have Brian Quick, wide receiver for Los Angeles who was a second ...
Breaking Medicine News(10 mins):
(Date:5/23/2016)... According to a new ... Product (Wheelchair, Scooters, Medical Beds, Bathroom Safety, Mechanical, ... Wound), Accessories (Lifting, Transfer) & by End User ... MarketsandMarkets, the patient handling equipment market is expected ... a CAGR of 10.5% during the forecast period ...
(Date:5/23/2016)... , May 23, 2016 Diplomat Pharmacy, Inc. ... annual Fellowship and Internship programs. The hands-on learning experience ... The full-time, paid Fellowship and ... Michigan . Fellows and interns are provided optional ... Flint at the Riverfront Residence Hall ...
(Date:5/23/2016)... 2016 According to market ... Growth and Demand Forecast to 2022 - Industry ... Application (Drug Discovery and Development, Proteomics, Clinical Testing, ... Science and Biotechnology, Academic and Research Institute, Hospitals ... global mass spectrometry market was valued ...
Breaking Medicine Technology: