Journal article
Mammographic detection of breast cancer in a non-screening country
British journal of radiology, Vol.91(1091), pp.20180071-20180071
11/2018
DOI: 10.1259/bjr.20180071
PMCID: PMC6475936
PMID: 29987982
Abstract
To compare the diagnostic accuracy between radiologists' from a country with and without breast cancer screening.
All participating radiologists gave informed consent. A test-set involving 60 mammographic cases (20 cancer and 40 non-cancer) were read by 11 radiologists from a non-screening (NS) country during a workshop in July 2016. 52 radiologists from a screening country read the same test-set at the Royal Australian and New Zealand College of Radiologists' meetings in July 2015. The screening radiologists were classified into two groups: those with less than or equal to 5 years of experience; those with more than 5 years of experience, and each group was compared to the group of NS radiologists. A Kruskal-Wallis test followed by post-hoc multiple comparisons test were used to compare measures of diagnostic accuracy among the reader groups.
The diagnostic accuracy of the NS radiologists was significantly lower in terms of sensitivity [mean = 54.0; 95% confidence interval (CI) (40.0-67.0)], location sensitivity [mean = 26.0; 95% CI (16.0-37.0)], receive roperating characteristic area under curve [mean = 73.0; 95% CI (66.5-81.0)] and Jackknifefree-response receiver operating characteristics figure-of-merit [mean = 45.0; 95% CI (40.0-50.0)] when compared with the less and more experienced screening radiologists, whilst no difference in specificity [mean = 75.0; 95% CI (70.0- 81.0)] was found. No significant differences in all measured diagnostic accuracy were found between the two groups of screening radiologists.
The mammographic performance of a group of radiologists from a country without screening program was suboptimal compared with radiologists from Australia.
Identifying mammographic performance in developing countries is required to optimize breast cancer diagnosis.
Details
- Title: Subtitle
- Mammographic detection of breast cancer in a non-screening country
- Creators
- Delgermaa Demchig - 1 Medical Image Optimization and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney , Sydney, NSW , AustraliaClaudia Mello-Thoms - 1 Medical Image Optimization and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney , Sydney, NSW , AustraliaWarwick B Lee - 1 Medical Image Optimization and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney , Sydney, NSW , AustraliaKhulan Khurelsukh - 2 Department of Diagnostic Radiology, Intermed Hospital, Ulaanbaatar, MongoliaAsai Ramish - 3 Department of Diagnostic Radiology, National Cancer Center , Ulaanbaatar , MongoliaPatrick C Brennan - 1 Medical Image Optimization and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney , Sydney, NSW , Australia
- Resource Type
- Journal article
- Publication Details
- British journal of radiology, Vol.91(1091), pp.20180071-20180071
- DOI
- 10.1259/bjr.20180071
- PMID
- 29987982
- PMCID
- PMC6475936
- NLM abbreviation
- Br J Radiol
- ISSN
- 0007-1285
- eISSN
- 1748-880X
- Publisher
- England
- Language
- English
- Date published
- 11/2018
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology
- Record Identifier
- 9984051569002771
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