Navigation Links
Digital mammography cancer detection rates may vary significantly
Date:5/13/2013

OAK BROOK, Ill. Digital direct radiography (DR) is significantly more effective than computed radiography (CR) at detecting breast cancer, according to a new study published online in the journal Radiology.

The findings are the first to show a difference between the two types of digital imaging when compared with screen film mammography and suggest that women should be informed of the potential for lower cancer detection with CR, the researchers said.

Digital mammography, which takes an electronic image of the breast that can be stored and sent electronically, has supplanted screen film mammography in recent years.

DR and CR are the two types of digital mammography offered. DR is an online system in which the detector is an integral part of the mammographic unit, and the digital image can be read by the system in real time. CR is an offline system that relies on a cassette-based removable detector. An external reading device is used to generate the digital image.

While numerous studies have been published comparing digital mammography with screen film mammography, less is known about the comparative effectiveness of DR and CR, according to Anna M. Chiarelli, Ph.D., senior scientist in Prevention and Cancer Control at Cancer Care Ontario in Toronto, Canada.

"Digital mammography was implemented progressively in Ontario starting in 2006, and since that time there's been no evidence in the literature to suggest that CR did not perform as well as DR," she said.

For the new study, Dr. Chiarelli and colleagues drew upon information from the Ontario Breast Screening Program (OBSP), initiated in 1990 to deliver breast screening to women between the ages of 50 and 74. The researchers identified three groups of women 50 to 74 years old who were screened between Jan. 1, 2008, and Dec. 31, 2009. A total of 403,688 women were screened by screen film mammography, while 220,520 had DR and 64,210 underwent CR. The women were followed for 12 months after screening.

DR detected 4.9 cancers per 1,000 mammograms, a figure almost identical to screen film mammography's rate of 4.8 cancers per 1,000 mammograms. However, CR's detection rate of 3.4 cancers per 1,000 mammograms was significantly lower.

"CR was 21 percent less effective than DR," Dr. Chiarelli said. "This could result in about 10 fewer cancers detected per 10,000 women screened."

The reason for the lower detection rates likely can be attributed to technical factors, Dr. Chiarelli added.

"There may be several technical reasons reported by others for the lower effectiveness of CR, including loss of spatial resolution, or sharpness, and increased image noise, or granularity," she said.

Dr. Chiarelli said the new results carry more weight than those of previous studies because of the larger number of women screened and the reliance on concurrent cohorts, or different groups followed over the same time period.


'/>"/>

Contact: Linda Brooks
lbrooks@rsna.org
630-590-7762
Radiological Society of North America
Source:Eurekalert

Related medicine news :

1. RSNA: Digital Mammography Cancer Detection Rates May Vary Significantly
2. After the breakup in a digital world: Purging Facebook of painful memories
3. SF Cable Releases Amplified HD Digital Outdoor Antenna with Motorized 360 Degree Rotation, UHF/VHF/FM Radio
4. Grey Matter Marketing Launches Industry-Wide Medical Technology Digital Marketing Survey
5. Scientists scan the human heart to create digital anatomical library
6. New SYNDICAST Service by Digitell Increases digitalNow Virtual Audience by 7 Fold
7. Cloud Medical Doctor Software Corporation (Cloud-MDs) (Pink Sheets: NSCT), announced today that it has expanded the capabilities of its Cloud+MD Office product suite with the formation of its digital security division, CipherShop™.
8. Global Vision to Host StandardPractice Seminar NYC - A Seminar Series for Digital File Creation
9. Chicago Digital Printer Introduces Variable-Data Printing for Bulk iPhone Case Orders
10. Digital rectal exam remains important part of prostate screening
11. Acutrack Introduces Digital Video Distribution
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/3/2016)... (PRWEB) , ... May 03, 2016 , ... Sue Desmond-Hellmann, ... Class of 2016 to stretch the limits of human possibility in her keynote address ... p.m. in the Georgia Dome. , Drawing on her rich experience as a scientist, ...
(Date:5/3/2016)... ... May 03, 2016 , ... With the opioid epidemic ... or excessive levels of alcohol use. Alcohol and its misuse causes long-term consequences ... to the susceptibility to strokes in those 65 years and older. In addition, ...
(Date:5/3/2016)... ... 03, 2016 , ... Cosmetic surgeon Dr. Mark Youssef first introduced Voluma® to ... filler into his menu of services to give his patients as many options as ... he’s still improving his approach to ensure he stays at the forefront of the ...
(Date:5/3/2016)... ... May 03, 2016 , ... Diagnotes, a leader ... Health, a three hospital system in South Carolina, to provide its secure mobile ... technology that enhances communication, drives workflow efficiencies and improves provider and patient satisfaction,” ...
(Date:5/3/2016)... ... May 03, 2016 , ... Park Cities Pet Sitter has openings for ... the 75204, 75205, 75206, 75209, 75219, 75220, 75225, 75229, 75230, 75231 and 75235 zip ... North Dallas, Plano, Preston Hollow and Park Cities areas of the Metroplex. Candidates ...
Breaking Medicine News(10 mins):
(Date:5/3/2016)... DUBLIN , May 3, 2016 ... to pay $55 million to a woman who says ... State court awarded Gloria Ristesund $5 million ...      (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO ) , ... of accusations against the company. In February, the same ...
(Date:5/3/2016)... excited to announce the launch of its Mediceutical line of products, a line of ... of clinical conditions. Founded in 2013, Forté spent more than two years researching and ... http://photos.prnewswire.com/prnh/20160502/362547LOGO ... ... ...
(Date:5/2/2016)... YORK , May 2, 2016 Leading Economies with ... Ethiopia 10.2 Côte d,Ivoire 8.6 Uzbekistan 8 Ireland 7.8 India 7.3, ... Research, BRICS nations , which comprises of Brazil , ... and South Africa , registered the fastest GDP ... slowdown in China , recession in Brazil ...
Breaking Medicine Technology: