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  • Breast screening:...

Breast screening: Digital mammography no good than film

MedhaBy MedhaPublished On 2020-07-14T16:44:32+05:30  |  Updated On 2020-07-15T15:44:59+05:30
Breast screening: Digital mammography no good than film

Australia: The transition from film to digital mammography did not result in health benefits for screened women, a recent study in the Journal of the National Cancer Institute has revealed. According to the study, the increase in the detection of cancer following the shift to digital mammography did not lead to a reduction in the interval cancer rate. Moreover, recall rates...

Australia: The transition from film to digital mammography did not result in health benefits for screened women, a recent study in the Journal of the National Cancer Institute has revealed. 

According to the study, the increase in the detection of cancer following the shift to digital mammography did not lead to a reduction in the interval cancer rate. Moreover, recall rates also increased.  

Breast screening programs replaced film mammography with digital mammography. The effects of this practice shift in screening on health outcomes can be measured through an examination of interval cancer and cancer detection rates.

Rachel Farber, University of Sydney, New South Wales, Australia, and colleagues undertook a systematic review and random-effects meta-analysis. even databases were searched for publications that compared film to digital mammography within the same population of asymptomatic women and reported cancer detection and/or interval cancer rates. A total of 24 studies with 16,583,743 screening examinations (10,968,843 film and 5,614,900 digital) were included. 

Key findings of the study include:

  • The pooled difference in cancer detection rate showed an increase of 0.51 per 1,000 screens, greater relative increase for DCIS (25.2%) than invasive (4%), and a recall rate increase of 6.95 per 1,000 screens after the transition from film to digital mammography.
  • Seven studies (80.8% of screens) reported interval cancers: pooled difference showed no change in interval cancer rate with -0.02 per 1,000 screens.
  • Restricting the analysis to studies at low risk of bias resulted in findings consistent with the overall pooled results for all outcomes.

"This analysis reinforces the need to carefully evaluate effects of future changes in technology, such as tomosynthesis, to ensure new technology leads to improved health outcomes and beyond technical gains," concluded the authors.

The study, "Impact of Full-Field Digital Mammography versus Film-Screen Mammography in Population Screening: a Meta-analysis, is published in the Journal of the National Cancer Institute.

DOI: https://doi.org/10.1093/jnci/djaa080

breast cancer digital mammography cancer screening Journal of the National Cancer Institute 
Source : Journal of the National Cancer Institute
Medha
Medha

    Medha Baranwal joined Medical Dialogues as an Editor in 2018 for Speciality Medical Dialogues. She covers several medical specialties including Cardiac Sciences, Dentistry, Diabetes and Endo, Diagnostics, ENT, Gastroenterology, Neurosciences, and Radiology. She has completed her Bachelors in Biomedical Sciences from DU and then pursued Masters in Biotechnology from Amity University. She has a working experience of 5 years in the field of medical research writing, scientific writing, content writing, and content management. She can be contacted at  editorial@medicaldialogues.in. Contact no. 011-43720751

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