Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Digital mammography reduces recall and biopsy rates

01.04.2014

Population-based screening with full-field digital mammography (FFDM) is associated with lower recall and biopsy rates than screen film mammography (SFM), suggesting that FFDM may reduce the number of diagnostic workups and biopsies that do not lead to diagnosis of breast cancer, according to a new study published online in the journal Radiology.

Previous population-based studies comparing the accuracy of SFM versus FFDM have reported conflicting results, and reported recall rates—or the rate at which women are called back for additional tests—have varied widely. In addition, past performance evaluations of breast imaging screening technologies do not account for the transition phase of adoption.

For this study, data collected from the Norwegian Breast Cancer Screening Program (NBCSP) was used to compare performance measures and outcomes before, during and after the transition from SFM to FFDM.

"The program invites women age 50 to 69 years to mammographic screening every two years," said Solveig Hofvind, Ph.D., from the Cancer Registry of Norway and Oslo University College, in Oslo, Norway. "We analyzed performance measures in the program as run in a usual setting."

To examine the effect of transition from SFM to FFDM, researchers analyzed the rate of cases, the recall rate, the rate of screen-detected cancer, and the rate of interval cancers.

"The study includes results from women screened with SFM only, with both SFM and FFDM, and with FFDM only. These combinations make us able to compare early performance measures achieved when using digital mammography in a routine setting, in a proper way," Dr. Hofvind said.

A total of 1,837,360 NBCSP screening exams were performed from 1996 through 2010, with 58.8 years being the average age at the time of screening. The overall recall rate was 3.4 percent for SFM and 2.9 percent for FFDM. The biopsy rate was 1.4 percent for SFM and 1.1 percent for FFDM.

Both the rate of invasive screening-detected and interval breast cancer remained stable during the transition from SFM to FFDM and after FFDM was firmly established. The positive predictive value of recalled examinations and of biopsy procedures increased from 19.3 percent and 48.3 percent to 22.7 percent and 57.5 percent, respectively, after adoption of FFDM.

By studying the transition phase of screening modality, researchers discovered FFDM implementation led to lower rates of false positive screening exams and fewer biopsies with benign outcome.

###

"Mammographic Performance in a Population-based Screening Program: Before, during, and after the Transition from Screen-Film to Full-Field Digital Mammography." Collaborating with Dr. Hofvind were Per Skaane, M.D., Ph.D., Joann G. Elmore, M.D., Ph.D., Sofie Sebuødegård, B.Sc., Solveig Roth Hoff, M.D., Ph.D., and Christoph I. Lee, M.D., MSHS.

Radiology is edited by Herbert Y. Kressel, M.D., Harvard Medical School, Boston, Mass., and owned and published by the Radiological Society of North America, Inc.

RSNA is an association of more than 53,000 radiologists, radiation oncologists, medical physicists and related scientists promoting excellence in patient care and health care delivery through education, research and technologic innovation. The Society is based in Oak Brook, Ill. (RSNA.org)

For patient-friendly information on mammography, visit RadiologyInfo.org.

Linda Brooks | EurekAlert!

Further reports about: Cancer Digital RSNA Radiological Screening biopsy mammography technologies transition

More articles from Medical Engineering:

nachricht New SPECT System scans virtually every patient and minimizes costs
20.10.2014 | Siemens AG

nachricht Tear duct implant effective at reducing pain and inflammation in cataract surgery patients
20.10.2014 | American Academy of Ophthalmology

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

Anzeige

Anzeige

Event News

Battery Conference April 2015 in Aachen

16.10.2014 | Event News

Experts discuss new developments in the field of stem cell research and cell therapy

10.10.2014 | Event News

Zoonoses: Global collaboration is more important than ever

07.10.2014 | Event News

 
Latest News

Siemens wins major HVDC order in Canada

20.10.2014 | Press release

Hubble Finds Extremely Distant Galaxy through Cosmic Magnifying Glass

20.10.2014 | Physics and Astronomy

Rapid agent restores pleasure-seeking ahead of other antidepressant action

20.10.2014 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>