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KMID : 1103720130680040333
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Journal of the Korean Society of Radiology
2013 Volume.68 No. 4 p.333 ~ p.341
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Radiology Residents’ Performance in Screening Mammography Interpretation
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Lee Eun-Hye
Lyou Chae-Yeon
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Abstract
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Purpose: To evaluate radiology residents’ performance in screening mammography interpretation and to analyze the factors affecting performance.
Materials and Methods: We enrolled 203 residents from 21 institutions and performed mammography interpretation tests. Between the trainee and non-trainee groups, we compared the interpretation score, recall rate, sensitivity, positive predictive value (PPV) and false-positive rate (FPR). We estimated the training effect using the score differences between trainee and non-trainee groups. We analyzed the factors affecting performance between training-effective and non-effective groups.
Results: Trainees were superior to non-trainees regarding interpretation score (43.1 vs. 37.1), recall rate (11.0 vs. 15.5%), sensitivity (83.6 vs. 72.0%), PPV (53.0 vs. 32.4%) and FPR (13.5 vs. 25.5). The longer the training period, the better were the interpretation score, recall rate, sensitivity, PPV and FPR (rho = 0.486, -0.375, 0.343, 0.504, -0.446, respectively). The training affected an increase by an average of 6 points; however, 31.6% of institutions showed no effect. A difference was noted in the volume of mammography interpretation during a month (594.0 vs. 476.9) and dedication of breast staff (61.5 vs. 0%) between training-effective and non-effective groups.
Conclusion: Trainees showed better performance in mammography interpretation compared to non-trainees. Moreover, performance was correlated with the training period. The factors affecting performance were the volume of mammography interpretation and the dedication of the breast staff.
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KEYWORD
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Breast Imaging, Education, Mammography, Screening
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