Conference proceeding
Varying performance in mammographic interpretation across two countries: Do results indicate reader or population variances?
Progress in Biomedical Optics and Imaging - Proceedings of SPIE, Vol.9787, pp.97870X-97870X-6
03/24/2016
DOI: 10.1117/12.2217654
Abstract
Aim: To compare the performance of Australian and Singapore breast readers interpreting a single test-set that consisted of mammographic examinations collected from the Australian population. Background: In the teleradiology era, breast readers are interpreting mammographic examinations from different populations. The question arises whether two groups of readers with similar training backgrounds, demonstrate the same level of performance when presented with a population familiar only to one of the groups. Methods: Fifty-three Australian and 15 Singaporean breast radiologists participated in this study. All radiologists were trained in mammogram interpretation and had a median of 9 and 15 years of experience in reading mammograms respectively. Each reader interpreted the same BREAST test-set consisting of sixty de-identified mammographic examinations arising from an Australian population. Performance parameters including JAFROC, ROC, case sensitivity as well as specificity were compared between Australian and Singaporean readers using a Mann Whitney U test. Results: A significant difference (P=0.036) was demonstrated between the JAFROC scores of the Australian and Singaporean breast radiologists. No other significant differences were observed. Conclusion: JAFROC scores for Australian radiologists were higher than those obtained by the Singaporean counterparts. Whilst it is tempting to suggest this is down to reader expertise, this may be a simplistic explanation considering the very similar training and audit backgrounds of the two populations of radiologists. The influence of reading images that are different from those that radiologists normally encounter cannot be ruled out and requires further investigation, particularly in the light of increasing international outsourcing of radiologic reporting.
Details
- Title: Subtitle
- Varying performance in mammographic interpretation across two countries: Do results indicate reader or population variances?
- Creators
- BaoLin P Soh - Singapore General Hospital (Singapore)Warwick B Lee - BreastScreen NSW LHD (Australia)Jill Wong - National Cancer Ctr. of Singapore (Singapore)Llewellyn Sim - Singapore General Hospital (Singapore)Stephen L Hillis - The Univ. of Iowa (United States)Kriscia A Tapia - The Univ. of Sydney (Australia)Patrick C Brennan - The Univ. of Sydney (Australia)
- Contributors
- Craig K Abbey (Editor) - Univ. of California, Santa Barbara (United States)Matthew A Kupinski (Editor) - College of Optical Sciences, The Univ. of Arizona (United States)
- Resource Type
- Conference proceeding
- Publication Details
- Progress in Biomedical Optics and Imaging - Proceedings of SPIE, Vol.9787, pp.97870X-97870X-6
- Publisher
- SPIE
- DOI
- 10.1117/12.2217654
- ISSN
- 1605-7422
- Language
- English
- Date published
- 03/24/2016
- Academic Unit
- Radiology; Biostatistics
- Record Identifier
- 9984051990102771
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