Applying a social network analysis (SNA) approach to understanding radiologists' performance in reading mammograms

Seyedamir Tavakoli Taba, Liaquat Hossain, Robert Heard, Patrick Brennan, Warwick Lee, Sarah Lewis

Research output: Chapter in Book/Report/Conference proceedingConference Paper published in Proceedings

Abstract

Rationale and objectives: Observer performance has been widely studied through examining the characteristics of individuals. Applying a systems perspective, while understanding of the system's output, requires a study of the interactions between observers. This research explains a mixed methods approach to applying a social network analysis (SNA), together with a more traditional approach of examining personal/individual characteristics in understanding observer performance in mammography.

Materials and Methods: Using social networks theories and measures in order to understand observer performance, we designed a social networks survey instrument for collecting personal and network data about observers involved in mammography performance studies. We present the results of a study by our group where 31 Australian breast radiologists originally reviewed 60 mammographic cases (comprising of 20 abnormal and 40 normal cases) and then completed an online questionnaire about their social networks and personal characteristics. A jackknife free response operating characteristic (JAFROC) method was used to measure performance of radiologists. JAFROC was tested against various personal and network measures to verify the theoretical model.

Results: The results from this study suggest a strong association between social networks and observer performance for Australian radiologists. Network factors accounted for 48% of variance in observer performance, in comparison to 15.5% for the personal characteristics for this study group.

Conclusion: This study suggest a strong new direction for research into improving observer performance. Future studies in observer performance should consider social networks' influence as part of their research paradigm, with equal or greater vigour than traditional constructs of personal characteristics.

Original languageEnglish
Title of host publicationMedical Imaging 2017
Subtitle of host publicationImage Perception, Observer Performance, and Technology Assessment
Place of PublicationOrlando; United States
PublisherSPIE
Number of pages7
Volume10136
ISBN (Electronic)9781510607170
DOIs
Publication statusPublished - 1 Jan 2017
Externally publishedYes
EventMedical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment - Orlando, United States
Duration: 12 Feb 201713 Feb 2017

Conference

ConferenceMedical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment
CountryUnited States
CityOrlando
Period12/02/1713/02/17

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Taba, S. T., Hossain, L., Heard, R., Brennan, P., Lee, W., & Lewis, S. (2017). Applying a social network analysis (SNA) approach to understanding radiologists' performance in reading mammograms. In Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment (Vol. 10136). [101360F] SPIE. https://doi.org/10.1117/12.2254177