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Breast Cancer

, Volume 23, Issue 2, pp 252–260 | Cite as

Multi-detector row CT-guided marking technique for breast-conserving therapy of early breast cancer: margin positivity and local control rates

  • Misugi UranoEmail author
  • Norio Shiraki
  • Masaki Hara
  • Tatsuya Toyama
  • Yuta Shibamoto
Original Article

Abstract

Background

In breast-conserving surgery (BCS), image-guided marking of the tumor border is important for preventing local recurrence and achieving a good cosmetic outcome. The purpose of this study was to evaluate the usefulness of multi-detector row computed tomography (MDCT)-guided marking technique before BCS in patients in whom ultrasound (US)-guided marking was not feasible.

Methods

Between 2004 and 2010, 94 lesions underwent contrast-enhanced MDCT-guided marking. Margin positivity and local control rates were compared with those of 149 lesions undergoing US-guided marking during the same period.

Results

In 21 lesions undergoing CT marking (22 %) and 20 lesions undergoing US marking (13 %), a negative resection margin could not be achieved, and hence the marking was judged as unsuccessful. Eighty-four lesions of the CT marking group and 119 of the US marking group received postoperative radiotherapy with 50 Gy in 25 fractions with or without an additional 10-Gy boost to the tumor bed. The remaining 10 and 30 patients, respectively, did not receive radiotherapy. The median follow-up period was 54 and 51 months for patients with CT marking and those with US marking, respectively. At 4 postoperative years, the local control rate was 96.5 % for patients with CT marking and 97.3 % for those with US marking (P = 0.89).

Conclusions

The MDCT marking technique appears to be a valuable tool for determining the surgical margin for BCS in patients in whom ultrasound marking cannot be performed. Combining this technique with appropriate postoperative radiation therapy is expected to yield reasonably high local control rates.

Keywords

Breast cancer Breast-conserving surgery Local control Preoperative marking MDCT 

Notes

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© The Japanese Breast Cancer Society 2014

Authors and Affiliations

  • Misugi Urano
    • 1
    Email author
  • Norio Shiraki
    • 2
  • Masaki Hara
    • 2
  • Tatsuya Toyama
    • 3
  • Yuta Shibamoto
    • 1
  1. 1.Department of RadiologyNagoya City University Graduate School of Medical SciencesNagoyaJapan
  2. 2.Department of RadiologyNagoya City West Medical CenterNagoyaJapan
  3. 3.Department of Breast and Endocrine SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan

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