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Digital mammography versus digital breast tomosynthesis for detection of breast cancer in the intraoperative specimen during breast-conserving surgery

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Abstract

Purpose

To compare the diagnostic ability of specimen radiography using digital mammography (DM) and digital breast tomosynthesis (DBT) for detecting breast cancer and evaluating its extension in the intraoperative specimen.

Methods

Sixty-five specimens from 65 women (median 62 years; range 34–86) obtained during breast-conserving surgery were prospectively investigated. Specimens underwent DM (25–40 kVp, 12–322 mA s) and DBT (25–34 kVp, 13–137 mA) in two orthogonal planes, anteroposterior (AP) and latero-lateral (LL). Images were interpreted by a radiologist to detect invasive lesions and their extensive intraductal components (EIC) or ductal carcinomas in situ (DCIS); afterwards, they were compared with histopathological findings.

Results

In AP views, 96 % of the invasive lesions were detected by both the methods. Of the EICs, 55 and 65 % were detected by DM and DBT, respectively (P = 0.61). Of the DICSs, 31 and 38 % were detected by DM and DBT, respectively (P > 0.99). In LL views, 71 and 13 % of the invasive lesions were detected by DBT and DM, respectively (P < 0.0001). Of the EICs, 42 and 10 % were detected by DBT and DM, respectively (P = 0.0078). Of the 13 DCISs, 42 and 8 % were detected by DBT and DM, respectively (P = 0.32). The whole lesion and contour could be delineated in 45 % by DBT and in 6.2 % by DM (P < 0.0001).

Conclusions

DBT could detect breast cancer more accurately than DM in LL views, indicating its potential to more precisely diagnose vertical invasion.

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Acknowledgments

The authors wish to thank radiology technologists at Nagoya City University Hospital for taking DM and DBT. No funding exists for this research.

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Correspondence to Misugi Urano.

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The authors declare that they have no conflicts of interest.

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Urano, M., Shiraki, N., Kawai, T. et al. Digital mammography versus digital breast tomosynthesis for detection of breast cancer in the intraoperative specimen during breast-conserving surgery. Breast Cancer 23, 706–711 (2016). https://doi.org/10.1007/s12282-015-0628-5

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  • DOI: https://doi.org/10.1007/s12282-015-0628-5

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