Mr. Basel A. Qenam Profile

Basel A. Qenam

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Proceedings Article | 4 April 2022 Presentation + Paper

Test-set training is linked to increased breast screening cancer detection rates

Basel Qenam, Tong Li, Patrick Brennan

Proceedings Volume 12035, 120350S (2022) https://doi.org/10.1117/12.2611621

KEYWORDS: Breast, Cancer, Breast cancer, Mammography, Medicine, Medical imaging, Medical research, Inspection, Health sciences

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Mammographic test sets are a simulation-based training methodology for radiologists to assess and improve their performance. However, while test-set records have indicated over-time improvements in participants' performance within the tests, little is known about how those improvements translate into breast-screening readers’ performance in the clinic. This study investigated how the performance of readers who completed test-set training in the BreastScreen Reader Assessment Strategy (BREAST) platform have evolved in comparison to readers who have no history of test-set participation. Investigating 10-year clinical audit data of 46 breast screening readers in New South Wales, Australia indicated that BREAST readers improved their positive predictive value (PPV) (p=0.001) in association with their testset participation. They also had higher detection rates for invasive cancers (p=0.01), ductal carcinoma in situ (DCIS) (p=0.03), and the detection rate of all cancers and DCIS (p=0.01). In comparison, non-BREAST readers improved their recall rate in subsequent screens (p=0.03) and PPV (p=0.02). In conclusion, test-set participation is linked to enhanced capability of cancer detection, which can be due to the high proportion of cancer cases in the test sets in comparison to normal practice.

Proceedings Article | 15 February 2021 Presentation + Paper

Test set participation may impact positively on clinical mammographic performance

Basel Qenam, Tong Li, Patrick Brennan

Proceedings Volume 11599, 115990Q (2021) https://doi.org/10.1117/12.2580676

KEYWORDS: Breast, Cancer

Read Abstract +

Mammographic test sets are a prominent form of quality assurance in breast screening and they have been associated in the lab with positive changes in radiologists’ performance. Focusing on this educational value, we examined the clinical audit history of 19 participants in the BreastScreen Reader Assessment Strategy (BREAST) test sets to investigate if changes in clinical performance reflected test-set participation. Included participants were radiologists who have read for BreastScreen New South Wales (NSW) in the period between 2010 and 2018 and who read on average 2000 cases or more in those years. Their audit data included 2 years before and 2 years after test-set participation. Wilcoxon Signed Ranks tests were used to investigate the difference in recall rates, cancer detection rates, and positive predictive value (PPV) for the cohort before and after testset participation. The data indicated that, over time, radiologists have significantly improved recall rate (screening rounds 2+), PPV, and the detection of ductal carcinoma in situ (DCIS). Those results suggest that breast screen readers who participate with test-set readings improve their clinical performance.

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