Effect of training on ultrasonography (US) BI-RADS features for radiology residents: a multicenter study comparing performances after training

Jung Hyun Yoon, Hye Sun Lee, You Me Kim, Ji Hyun Youk, Sung Hun Kim, Sun Hye Jeong, Ji Young Hwang, Jin Hee Moon, Young Mi Park, Min Jung Kim

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Abstract

Objectives: To evaluate the effect of training radiology residents on breast ultrasonography (US) according to the Breast Imaging Reporting And Data System (BI-RADS) and the factors that influence the training effect. Methods: This multicenter, prospective study was approved by eight institutional review boards. From September 2013 to July 2014, 248 breast masses in 227 women were included for US image acquisition. Representative B-mode and video images of the breast masses were recorded, among which 54 cases were included in the education set and 66 in the test set. Sixty-one radiology residents scheduled for breast imaging training individually reviewed the test set, immediately before, 1 month after, and 6 months after training. Diagnostic performances and US descriptors of the residents were evaluated and compared against those of expert radiologists. Results: Agreements between residents and experienced radiologists showed improvement after training, while agreements between post-training and post-6-month training descriptors did not show significant differences (all p > 0.05, respectively). Sensitivity, negative predictive value (NPV), and AUC were significantly improved for residents post-training and post-6-month training (all p < 0.05), while approximating the performances of expert radiologists except for AUC (0.836, 0.840, and 0.908, respectively, p < 0.05). Low levels of pre-training AUC, total number of breast US examinations, and the number of sessions per week that residents were involved in were factors influencing the improvement of AUC. Conclusion: Training using education material dedicated for breast US imaging effectively improved the diagnostic performances of radiology residents and agreements with experienced radiologists on US BI-RADS features. Key Points: • Agreements on lesion descriptors between residents and experienced radiologists showed improvement after training, regardless of test point. • Sensitivity, NPV, and AUC were significantly improved for residents in post-training and post-6-month training (all p < 0.05). • Low levels of pre-training AUC, total number of breast US examinations, and the number of sessions per week that residents were involved in were factors influencing the improvement of AUC.

Original languageEnglish
Pages (from-to)4468-4476
Number of pages9
JournalEuropean Radiology
Volume29
Issue number8
DOIs
Publication statusPublished - 2019 Aug 1

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

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    Yoon, J. H., Lee, H. S., Kim, Y. M., Youk, J. H., Kim, S. H., Jeong, S. H., Hwang, J. Y., Moon, J. H., Park, Y. M., & Kim, M. J. (2019). Effect of training on ultrasonography (US) BI-RADS features for radiology residents: a multicenter study comparing performances after training. European Radiology, 29(8), 4468-4476. https://doi.org/10.1007/s00330-018-5934-9