Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New Computer Technique Differentiates Malignant and Benign Calcifications on Digital Mammograms

04.05.2004


Researchers at the University of Chicago have developed a computer technique that “learns” how benign and malignant breast calcifications appear on digital mammograms so not only can it detect them, but it can also predict the likelihood that the calcifications are associated with cancer.



“In this study, we analyzed 49 full-field digital mammograms, 19 of which showed cancer,” said Rich Rana, a medical student at the University of Chicago. Four mammography specialists read the images and electronically put a box around the suspicious calcifications. The computer then automatically detected the calcifications within the box, analyzed them and calculated the probability of cancer, Rana said.

The system proved to consistently achieve performance comparable to the radiologists in classifying malignant and benign calcifications, regardless of who was using it, Rana added. One technique for rating the computer’s effectiveness is to give it one malignant case and one benign case and then test its ability to determine which is which, Rana said. Using this technique, the radiologist had a 72% chance of making the correct diagnosis, and the computer had a 79% chance.


This study was one of the first to test the effectiveness of computer-aided diagnoses on full-field digital mammograms versus plain film mammograms. In addition, this system employs artificial intelligence in that the computer “learns” how to automatically locate the calcifications and predict whether they are benign or malignant, Rana said. In the future the radiologist’s assessment could be compared with the computer’s assessment as a “double-check” for the diagnosis of breast cancer, Rana said.

This research was lead by Dr. Yulei Jiang, assistant professor of radiology at the University of Chicago. The research was funded by the National Cancer Institute, the U.S. Army Medical Research and Material Command, and the National Institutes of Health. Rana will present the study on May 4 at the American Roentgen Ray Society Annual Meeting in Miami Beach, FL.

Keri J. Sperry | ARRS
Further information:
http://www.arrs.org/scriptcontent/pressroom/archive/2004/r040504g.cfm

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First diode for magnetic fields

Innsbruck quantum physicists have constructed a diode for magnetic fields and then tested it in the laboratory. The device, developed by the research groups led by the theorist Oriol Romero-Isart and the experimental physicist Gerhard Kirchmair, could open up a number of new applications.

Electric diodes are essential electronic components that conduct electricity in one direction but prevent conduction in the opposite one. They are found at the...

Im Focus: Nonstop Tranport of Cargo in Nanomachines

Max Planck researchers revel the nano-structure of molecular trains and the reason for smooth transport in cellular antennas.

Moving around, sensing the extracellular environment, and signaling to other cells are important for a cell to function properly. Responsible for those tasks...

Im Focus: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Optical Coherence Tomography: German-Japanese Research Alliance hosted Medical Imaging Conference

19.11.2018 | Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

 
Latest News

Removing toxic mercury from contaminated water

21.11.2018 | Life Sciences

New China and US studies back use of pulse oximeters for assessing blood pressure

21.11.2018 | Medical Engineering

Exoplanet stepping stones

21.11.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>