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Use of prior mammograms in the transition to digital mammography : a performance and cost analysis
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Taylor-Phillips, Sian, Wallis, Matthew G., Duncan, Alison and Gale, Alastair G. (2012) Use of prior mammograms in the transition to digital mammography : a performance and cost analysis. European Journal of Radiology, Vol.81 (No.1). pp. 60-65. doi:10.1016/j.ejrad.2010.10.025 ISSN 0720-048X.
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Official URL: http://dx.doi.org/10.1016/j.ejrad.2010.10.025
Abstract
Breast screening in Europe is gradually changing from film to digital imaging and reporting of cases. In the transition period prior mammograms (from the preceding screening round) are films thereby potentially causing difficulties in comparison to current digital mammograms. To examine this breast screening performance was measured at a digital mammography workstation with prior mammograms displayed in different formats, and the associated costs calculated. 160 selected difficult cases (41% malignant) were read by eight UK qualified mammography readers in three conditions: with film prior mammograms; with digitised prior mammograms; or without prior mammograms. Lesion location and probability of malignancy were recorded, alongside a decision of whether to recall each case for further tests. JAFROC analysis showed a difference between conditions (p = .006); performance with prior mammograms in either film or digitised formats was superior to that without prior mammograms (p < .05). There was no difference in the performance when the prior mammograms were presented in film or digitised form. The number of benign or normal cases recalled was 26% higher without prior mammograms than with digitised or film prior mammograms (p < .05). This would correspond to an increase in recall rate at the study hospital from 4.3% to 5.5% with no associated increase in cancer detection rate. The cost of this increase was estimated to be £11,581 (€13,666) per 10,000 women screened, which is higher than the cost of digitised (£11,114/€13,115), or film display (£6451/€7612) of the prior mammograms. It is recommended that, where available, prior mammograms are used in the transition to digital breast screening.
| Item Type: | Journal Article | ||||
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| Subjects: | R Medicine > R Medicine (General) R Medicine > RG Gynecology and obstetrics |
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| Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Health Sciences Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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| Library of Congress Subject Headings (LCSH): | Medical screening, Breast -- Radiography, Breast -- Radiography -- Technological innovation, Radiography, Medical -- Digital techniques -- Cost effectiveness, Radiologists -- Workload | ||||
| Journal or Publication Title: | European Journal of Radiology | ||||
| Publisher: | Elsevier Ireland Ltd. | ||||
| ISSN: | 0720-048X | ||||
| Official Date: | January 2012 | ||||
| Dates: |
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| Volume: | Vol.81 | ||||
| Number: | No.1 | ||||
| Page Range: | pp. 60-65 | ||||
| DOI: | 10.1016/j.ejrad.2010.10.025 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Description: | Article in Press |
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| Funder: | National Institute for Health Research (Great Britain) (NIHR), Cambridge Biomedical Research Group (CBRG) |
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