KEYWORDS: Breast, Mammography, Breast cancer, Diagnostics, Cancer, Radiology, Picture Archiving and Communication System, Breast imaging, Tissues, Receivers
Unlike Australia, China has no population-based early detection screening program with radiological expertise being a barrier to implementation. This study explores observer performance between breast radiologists from China and Australia, and the role of peer-assisted reading in Chinese radiologists’ performance. A test set of 60 high density screening mammograms (40 normal, 20 cancer cases) was constructed with eight Chinese and 17 Australian radiologists reading the test set independently, while another ten Chinese radiologists read the test set as a peer-duo, where discussion was encouraged but lesion marking was done separately. For independent readings by radiologists who read >20 cases per week, Chinese readers had lower performance in sensitivity, lesion sensitivity, AUC and JAFROC. There was no significant difference in performance between independent reading and peer-assisted reading Chinese readers and this strategy may have limited valued in improving diagnostic efficacy.
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