Featured Research

from universities, journals, and other organizations

Breast Cancer Screening Trial Shows Digital Mammogram Benefits

September 17, 2005
Brown University
Results of one of the largest breast cancer screening trials show that digital mammography detects significantly more cancers than film mammography in younger women and in women with dense breasts. The American College of Radiology Imaging Network (ACRIN) conducted the trial in conjunction with the Center for Statistical Sciences at Brown Medical School. The New England Journal of Medicine reports the results.

Related Articles

However,the trial, conducted by the American College of Radiology ImagingNetwork (ACRIN) in conjunction with the Center for Statistical Sciencesat Brown Medical School, showed no difference between digital and filmmammography in detecting breast cancer for the general population ofwomen. The results are reported today in a special online publicationof the New England Journal of Medicine and presented at ACRIN’s fallmeeting in Arlington, Va.

With 49,528 women enrolled at 33clinical sites, including Rhode Island Hospital, the trial is one ofthe largest breast cancer screening studies ever performed. Brown’sCenter for Statistical Sciences developed the study’s statisticaldesign and analyzed the results.

“The data show that digitalmammography is, on average, as good at detecting breast cancer as filmmammography – and in some important subgroups of women, digitalperforms even better,” said Constantine Gatsonis, network statisticianfor ACRIN, professor of community health and applied mathematics atBrown, and an author of the New England Journal article.

Becauseof its size and rigor, Gatsonis said, the study provides some of thebest data gathered on the diagnostic accuracy of mammograms. “Neitherfilm nor digital mammography is able to catch every cancer,” Gatsonissaid. “So this study data can be used to develop and improvemammography in the coming years. And that is good news for women’shealth.”

The primary aim of the trial, dubbed the DigitalMammographic Imaging Screening Trial (DMIST), was to compare thediagnostic performance of digital and film mammography.

Womenenrolled in the trial had no signs of breast cancer. Volunteers of allages – the median age was 54 – took part. Each woman was given bothdigital and film screenings. Then they were randomized so that half hadthe digital exam first, the other half had the film exam first. Twodifferent radiologists independently interpreted the mammograms.

Doctorsdetermined participants’ breast cancer status through follow-upmammography or available biopsy results. Biopsy information wasavailable within 15 months of study entry. Mammograms were taken 10months or later after study entry.

Barbara Schepps, M.D., oversawDMIST at Rhode Island Hospital (RIH), a major trauma center forsoutheastern New England and the largest teaching hospital of BrownMedical School. The site enrolled 642 participants.

A radiologistand director of the Anne C. Pappas Center for Breast Imaging at RIH,Schepps said, “With this new information, we are going to strive toconvert all our units to digital as soon as possible. While the studydoesn’t show that digital mammography benefits all women, it clearlymakes a difference for younger women, a population that is known to bedifficult to examine because they tend to have denser breasts.

“Theimportant message is that all women get screened annually – whetherwith digital or conventional mammography,” said Schepps, a clinicalprofessor at Brown Medical School.

The study’s principalinvestigator and senior author of the article, is Etta Pisano, M.D.,the Kenan Professor of Radiology and Biomedical Engineering at theUniversity of North Carolina–Chapel Hill. Pisano directs the BiomedicalResearch Imaging Center at the UNC and is a member of theUNC-Lineberger Comprehensive Cancer Center.

The National CancerInstitute funded DMIST. According to institute statistics, breastcancer is the most common non-skin cancer and the second leading causeof cancer-related death among women in the United States. An estimated211,240 women will be diagnosed with breast cancer and an estimated40,410 women will die of the disease in the United States in 2005.

AtBrown's Center for Statistical Sciences, faculty, students, and staffdevelop bio-statistical methodology and conduct interdisciplinaryresearch in medicine, public health and the biosciences. The Center isknown for its expertise in diagnostic test evaluation and is home tothe Biostatistics Center of ACRIN, a National CancerInstitute-sponsored clinical trials cooperative group made up ofinvestigators from more than 100 academic and community-basedfacilities in the United States, as well as several abroad.

Foundedin 1863, Rhode Island Hospital is a private, not-for-profit hospitaland is the largest teaching hospital of Brown Medical School. A majortrauma center for southeastern New England, the hospital is dedicatedto being on the cutting edge of medicine and research. Rhode IslandHospital ranks 13th among independent hospitals which receive fundingfrom the National Institutes of Health, with research awards of morethan $27 million annually. Many of its physicians are recognized asleaders in their respective fields of cancer, cardiology, diabetes,orthopedics and minimally invasive surgery. Rhode Island Hospital is afounding member of the Lifespan health system.

Story Source:

The above story is based on materials provided by Brown University. Note: Materials may be edited for content and length.

Cite This Page:

Brown University. "Breast Cancer Screening Trial Shows Digital Mammogram Benefits." ScienceDaily. ScienceDaily, 17 September 2005. <www.sciencedaily.com/releases/2005/09/050917085103.htm>.
Brown University. (2005, September 17). Breast Cancer Screening Trial Shows Digital Mammogram Benefits. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2005/09/050917085103.htm
Brown University. "Breast Cancer Screening Trial Shows Digital Mammogram Benefits." ScienceDaily. www.sciencedaily.com/releases/2005/09/050917085103.htm (accessed March 31, 2015).

Share This

More From ScienceDaily

More Health & Medicine News

Tuesday, March 31, 2015

Featured Research

from universities, journals, and other organizations

Featured Videos

from AP, Reuters, AFP, and other news services

Solitair Device Aims to Takes Guesswork out of Sun Safety

Solitair Device Aims to Takes Guesswork out of Sun Safety

Reuters - Innovations Video Online (Mar. 31, 2015) — The Solitair device aims to take the confusion out of how much sunlight we should expose our skin to. Small enough to be worn as a tie or hair clip, it monitors the user&apos;s sun exposure by taking into account their skin pigment, location and schedule. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Soda, Salt and Sugar: The Next Generation of Taxes

Soda, Salt and Sugar: The Next Generation of Taxes

Washington Post (Mar. 30, 2015) — Denisa Livingston, a health advocate for the Dinι Community Advocacy Alliance, and the Post&apos;s Abby Phillip discuss efforts around the country to make unhealthy food choices hurt your wallet as much as your waistline. Video provided by Washington Post
Powered by NewsLook.com
UnitedHealth Buys Catamaran

UnitedHealth Buys Catamaran

Reuters - Business Video Online (Mar. 30, 2015) — The $12.8 billion merger will combine the U.S.&apos; third and fourth largest pharmacy benefit managers. Analysts say smaller PBMs could also merge. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) — Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.


Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News


Free Subscriptions

Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile

Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?

Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins