Volume 17 Supplement 1

British Society of Breast Radiology Annual Scientific Meeting 2015

Open Access

Comparison of MRI and digital breast tomosynthesis in the preoperative evaluation of multifocal breast cancer

  • Bhavna Batohi1,
  • Valeria Vinci1,
  • Clare Peacock1,
  • Michael Michell1,
  • Asif Iqbal1,
  • David Evans1,
  • Juliet Morel1,
  • Keshthra Satchithananda1,
  • Reema Wasan1 and
  • Rumana Rahim1
Breast Cancer Research201517(Suppl 1):P11

https://doi.org/10.1186/bcr3773

Published: 5 November 2015

Introduction

Preoperative assessment of tumour extent is crucial in the management of breast cancer. MRI is currently indicated in cases of invasive lobular carcinoma on histology, a dense breast parenchymal pattern on 2D digital mammography (2DDM) or if there is a discrepancy between the clinical and radiological extent of disease. We compared the imaging characteristics of multifocal breast cancers on MRI, digital breast tomosynthesis (DBT), ultrasound and 2DDM to demonstrate the accuracy of each modality in the assessment of multifocal cancers.

Methods

A retrospective review of 74 cases over a 4-year period was conducted. We included all cases whereby MRI or DBT identified two or more lesions that were considered suspicious or highly suggestive for malignancy. We compared the sign on MRI (including morphology and enhancement characteristics) against the lesion detectability on DBT. The final histology of these lesions obtained following ultrasound-guided core biopsy, vacuum-assisted MR-guided biopsy or surgical excision was considered.

Results

There were 142 proven malignancies on histology out of the 74 cases, all of which were detected on MRI. The results of the MRI led to a change in surgical management in approximately 50% of cases but overstaged 16% of cases.

Conclusion

MRI is more sensitive than the other three imaging modalities combined in accurately identifying multifocal breast cancer; however, DBT is still a useful adjunct in the evaluation of multifocal disease. There was no correlation between the pathological subtype and the non-detectability of multifocal cancer on the combined imaging modalities.

Authors’ Affiliations

(1)
King's College Hospital

Copyright

© Batohi et al. 2015

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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