Radiation Oncology Journal

  • 제31권4호
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  • Pages.228-233
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  • 2013
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  • 2234-1900(pISSN)
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  • 2234-3156(eISSN)
대한방사선종양학회 (The Korean Society for Radiation Oncology)
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Tumor bed volumetric changes during breast irradiation for the patients with breast cancer

  • Chung, Mi Joo (Department of Radiation Oncology, St. Vincent's Hospital, The Catholic University of Korea College of Medicine) ;
  • Suh, Young Jin (Department of Surgery, St. Vincent's Hospital, The Catholic University of Korea College of Medicine) ;
  • Lee, Hyo Chun (Department of Radiation Oncology, St. Vincent's Hospital, The Catholic University of Korea College of Medicine) ;
  • Kang, Dae Gyu (Department of Radiation Oncology, St. Vincent's Hospital, The Catholic University of Korea College of Medicine) ;
  • Kim, Eun Joong (Department of Radiation Oncology, St. Vincent's Hospital, The Catholic University of Korea College of Medicine) ;
  • Kim, Sung Hwan (Department of Radiation Oncology, St. Vincent's Hospital, The Catholic University of Korea College of Medicine) ;
  • Lee, Jong Hoon (Department of Radiation Oncology, St. Vincent's Hospital, The Catholic University of Korea College of Medicine)
  • 투고 : 2013.07.10
  • 심사 : 2013.10.07
  • 발행 : 2013.12.31
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초록

Purpose: The aim of this study was to evaluate changes in breast tumor bed volume during whole breast irradiation (WBI). Materials and Methods: From September 2011 to November 2012, thirty patients who underwent breast-conserving surgery (BCS) followed by WBI using computed tomography (CT) simulation were enrolled. Simulation CT scans were performed before WBI (CT1) and five weeks after the breast irradiation (CT2). The tumor bed was contoured based on surgical clips, seroma, and postoperative change. We retrospectively analyzed the factors associated with tumor bed volumetric change. Results: The median tumor bed volume on CT1 and CT2 was 29.72 and 28.6 mL, respectively. The tumor bed volume increased in 9 of 30 patients (30%) and decreased in 21 of 30 patients (70%). The median percent change in tumor bed volume between initial and boost CT was -5%. Seroma status (p = 0.010) was a significant factor in tumor bed volume reduction of 5% or greater. However, patient age, body mass index, palpability, T stage, axillary lymph node dissection, and tumor location were not significant factors for tumor bed volumetric change. Conclusion: In this study, volumetric change of tumor bed cavity was frequent. Patients with seroma after BCS had a significant volume reduction of 5% or greater in tumor bed during breast irradiation. Thus, resimulation using CT is indicated for exquisite boost treatment in breast cancer patients with seroma after surgery.

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참고문헌

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  3. Displacement of Surgical Clips during Postoperative Radiotherapy in Breast Cancer Patients Who Received Breast-Conserving Surgery vol.19, pp.4, 2016, https://doi.org/10.4048/jbc.2016.19.4.417
  4. Comparison of two radiation techniques for the breast boost in patients undergoing neoadjuvant treatment for breast cancer vol.89, pp.1066, 2013, https://doi.org/10.1259/bjr.20160264
  5. Imaging dose of megavoltage computed tomography (MVCT) for treatment verification in the tomotherapy of breast cancer vol.17, pp.2, 2013, https://doi.org/10.1017/s1460396917000590
  6. Displacement of Surgical Clips in Patients with Human Acellular Dermal Matrix in the Excision Cavity during Whole Breast Irradiation Following Breast-Conserving Surgery vol.52, pp.2, 2013, https://doi.org/10.4143/crt.2019.213