High quality breast imaging and accurate image assessment are critical to the early diagnoses, treatment and management of women with cancer. Mammography is the primary diagnostic tool for detecting breast cancer with 800,000 women X-rayed annually in Australia however, it fails to detect 30% of breast cancers, with many missed cancers being visible on the image. The BreastScreen Reader Assessment Strategy (BREAST) monitors mistakes, identify reasons for mammographic errors and create innovative solutions to reduce errors.

BREAST is based on digital screen reading test sets designed to assess the performance of radiologists and radiology registrars. Developed by a team of researchers at the University of Sydney in collaboration with Cancer Institute NSW in 2011, BREAST has made it possible for thousands of clinicians to assess their performance on high-quality test sets in mammography and digital breast tomosynthesis, at workshops and in their own clinics. This immediate feedback is made possible through the online app, BreastAustralia. To view how BreastAustralia works, check out our video.

The data generated by BREAST are de-identified and used for further research in the fields of radiology performance, perception science, medical imaging technologies, breast imaging optimisation, and other domains.

These features make BREAST a powerful radiology training and research tool that is being used in Australia, New Zealand, Asia, Middle East, and Europe.

Our team

Prof Sarah Lewis, Director

Prof Sarah Lewis’s research is in medical imaging, specifically breast and lung cancer imaging. She has a primary focus in understanding how new technological imaging developments, such as Phase Contrast and Artificial Intelligence (AI), change the nature of radiology service provisions, such as screening programs, and the performance of the humans who use them.  Sarah’s research translates laboratory findings into clinical practice through changes in behaviour of practitioners, such as radiologists and radiographers.

Dr. Yun Trieu, Post-doc and Chief Technology Officer

Yun’s research includes exploring risk factors for cancer and innovative methods to improve the detection of early clinical indicators of malignancy on medical images. Her current work is around developing new test sets and she leads BREAST’s research and training activities in Vietnam.

Dr. Tong Li, Post-doc and Chief Operating Officer

Tong’s research interest covers epidemiology, breast cancer screening, breast density and digital breast tomosynthesis. Her current work is around developing new test sets and she leads BREAST’s research and training activities in China.



Ms Karen Ho, Project Manager

Karen is the project manager of BREAST. Her proficiency in areas of project management, finance, strategy, digital literacy, data analysis and visualisation, external engagement, complex institution, as well as quality assurance empowered the funding supported strategy of BREAST.

Mr. Dennis Wong

Dennis is an HDR student and the Administration Officer at BREAST.  He provides administration support for the team. His thesis and research interests include eye tracking and the use of computer aided-diagnostics for breast density differentiation.



Contact us

Phone: +61 2 9351 9586
Email: breastaustralia@sydney.edu.au

Room M504, M Building
Faculty of Health Sciences
The University of Sydney
75 East Street
Lidcombe, NSW 2141

PO Box 170
Lidcombe NSW 1825