Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Computer-aided detection improves early breast cancer identification

04.08.2006
Computer-aided detection improves breast cancers in both screening and diagnostic patients according to a recent study done by a private practice radiologist in Santa Barbara, CA.

The study was conducted to evaluate the impact of CAD in a non-academic setting, most notably its effect on cancer detection in both screening and diagnostic patients. The positive predictive value (PPV) of biopsy recommendations, biopsy rate, and recall rate before and after the introduction of CAD were compared. Then, size, stage, and histology of cancers detected with and without CAD findings were evaluated.

"Early detection is essential in preventing breast cancer deaths, so as a mammography specialist, I'm always looking for tools to improve cancer detection," said Judy Dean, MD, and lead author of the study. "This study began as acceptance testing for the CAD system I purchased for my mammography practice in 2002. I scanned 50 known cancer cases and 50 normal mammograms to see how the software would perform on films from my own practice and was astounded to find that it marked 90% of the cancers. I was really surprised that a computer program could achieve that level of sensitivity, so I decided to see what effect it would have when put into day-to-day use in my practice," said Dr. Dean.

"We collected data until more than a hundred cancers had been found, and then analyzed the results to compare what types of cancers were found with and without CAD assistance," said Dr. Dean. "We used the CAD system for every mammogram performed during the study, not just screening patients, and even in patients with prior surgery, breast implants, or other findings, CAD was helpful in finding more cancers."

During a 28 month period, 9,520 film-screen mammograms were interpreted. According to the study screening-detected cancers increased 13.3% with CAD assistance and 9.5% in diagnostic exams. The greatest impact was on ductal carcinoma in situ (DCIS), the most common type of non-invasive breast cancer in women, for which CAD increased cancer detection by 14.2%.

"Cancer detections were higher in both screening studies and symptomatic patients. This means that CAD should be used for all mammograms, not just routine screening examinations," said Dr. Dean. "According to the ACR, there are currently 8,881 accredited mammography facilities in the United States but only 4,000 are using CAD."

"The principal barrier with CAD is the cost, and a proposed 50% reduction in Medicare reimbursement will make the technology out of reach for most small and medium sized facilities," said Dr. Dean. "These may be the very places that need CAD the most, as prior studies have shown that CAD has the most impact for non-specialist radiologists," she said.

Necoya Lightsey | EurekAlert!
Further information:
http://www.arrs.org

More articles from Health and Medicine:

nachricht Study suggests possible new target for treating and preventing Alzheimer's
02.12.2016 | Oregon Health & Science University

nachricht The first analysis of Ewing's sarcoma methyloma opens doors to new treatments
01.12.2016 | IDIBELL-Bellvitge Biomedical Research Institute

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: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>