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. 2020 Jun;17(6):773-778.
doi: 10.1016/j.jacr.2019.12.024. Epub 2020 Jan 28.

Comparing Breast and Abdominal Subspecialists' Follow-Up Recommendations for Incidental Liver Lesions on Breast MRI

Pamela J DiPiro  1 , David P Alper  2 , Catherine S Giess  3 , Daniel I Glazer  4 , Leslie K Lee  4 , Ronilda Lacson  2 , Ramin Khorasani  5
Affiliations

Comparing Breast and Abdominal Subspecialists' Follow-Up Recommendations for Incidental Liver Lesions on Breast MRI

Pamela J DiPiro et al. J Am Coll Radiol. 2020 Jun.

Abstract

Purpose: The aim of this study was to compare breast imaging subspecialists' follow-up recommendations for incidental liver lesions (ILLs) on breast MRI with abdominal subspecialty radiologists' opinions informed by best-practice recommendations.

Methods: In this retrospective study at an academic medical center, natural language processing identified reports with ILLs among 2,181 breast MRI studies completed in 2015. Electronic health record and radiology report reviews abstracted malignancy presence or absence, prior imaging, and breast subspecialists' recommendations regarding ILLs for random sets of 30 patients: ILLs with follow-up recommendations, ILLs without recommendations, and without ILLs. Two abdominal radiologists evaluated MRI liver findings and offered follow-up recommendations in consensus. The primary outcome was agreement between breast and abdominal subspecialists in patients with ILL follow-up recommendations compared with those without (χ2 analysis). Secondary outcomes were agreement between subspecialists when ILLs were reported and referring clinicians' adherence to follow-up recommendations.

Results: ILLs were identified in 11.3% of breast MRI reports (247 of 2,181); breast subspecialists made follow-up recommendations in 12% of them (30 of 247). Abdominal subspecialists agreed with breast subspecialists when ILLs required no follow-up (29 of 30 cases) but disagreed with 28 of 30 breast subspecialists' follow-up recommendations (agreement proportion 29 of 30 versus 2 of 30, P < .0001). Subspecialists agreed in 93% of cases (28 of 30) when breast imagers reported no ILLs. Overall, 16 of 30 breast subspecialists' follow-up recommendations were performed; ILLs were benign in 15.

Conclusions: Abdominal subspecialists disagreed frequently with breast subspecialists regarding follow-up recommendations for ILLs on breast MRI. Abdominal subspecialty consultation or embedding liver imaging decision support in breast imaging reporting workflow may reduce unnecessary imaging and improve care. Improvement opportunities may exist in other cross-subspecialty interpretation workflows.

Keywords: Breast MRI; incidental liver lesion; subspecialty radiologists.

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Figures

Figure 1:
Figure 1:
Flowchart of patient cohort selection.
Figure 2:
Figure 2:
Review of cases. AR = abdominal subspecialty radiologist; BR = breast subspecialty radiologist; ILL = incidental liver lesion
See this image and copyright information in PMC

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