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두경부암 환자에서 근치적 방사선치료 후 12주 시행한 양전자방출촬영의 임상적 중요성에 대한 연구

Clinical Significance of FDG PET-CT Scan at 12 Weeks after Curative Radiation Therapy in Patients with Head and Neck Cancer

  • 김영일 (충남대학교 의과대학 방사선종양학과) ;
  • 김준상 (충남대학교 의과대학 방사선종양학과) ;
  • 권진이 (충남대학교 의과대학 방사선종양학과) ;
  • 김섭 (충남대학교 의과대학 방사선종양학과) ;
  • 서영덕 (세종충남대학교병원 핵의학과) ;
  • 구본석 (충남대학교 의과대학 이비인후과교실) ;
  • 장재원 (충남대학교 의과대학 이비인후과교실) ;
  • 조문준 (충남대학교 의과대학 방사선종양학과)
  • Kim, Young-il (Department of Radiation oncology, Chungnam National University Hospital) ;
  • Kim, Jun-sang (Department of Radiation oncology, Chungnam National University Hospital) ;
  • Kwon, Jeanny (Department of Radiation oncology, Chungnam National University Hospital) ;
  • Kim, Sup (Department of Radiation oncology, Chungnam National University Hospital) ;
  • Seo, Youngduk (Department of Nuclear medicine, Chungnam National University Sejong Hospital) ;
  • Koo, Bon-seok (Department of Otolaryngology, Chungnam National University Hospital) ;
  • Chang, Jae-won (Department of Otolaryngology, Chungnam National University Hospital) ;
  • Cho, Moon-June (Department of Radiation oncology, Chungnam National University Hospital)
  • 투고 : 2021.02.03
  • 심사 : 2021.04.08
  • 발행 : 2021.05.31

초록

Background/Objectives: To evaluate clinical significance of FDG PET-CT for detection of residual cancer cells after curative radiation therapy or chemoradiotherapy for patients with squamous cell carcinoma (SCC) of Head and Neck Materials & Methods: A retrospective analysis of patients with SCC of Head and neck with curative radiotherapy or chemoradiotherpy between June 2011 and Jan. 2019 was performed. Sixty patients were treated with Intensity-modulated radiotherapy (IMRT). The Metabolic responses were evaluated on the post-treatment FDG PET-CT at 12 weeks after curative radiotherapy completion. Results: Median follow up was 51.5 months (3-102). The overall survival (OS), disease free survival (DFS), local control rate (LCR), and Distant metastasis free survival (DMFS) at 5 years were 80.5%, 80.1%, 87.7% and 89.1%. Metabolic CR was found in 43 (71.7%) and partial metabolic response (PR) was noted in 17 (14.6%). Metabolic CR was significantly correlated with OS, DFS, LCR, and DMFS. On multivariate analysis, Metabolic CR remained significant for DFS and LCR. Conclusion: Metabolic CR on post-radiotherapy FDG PET-CT is highly predictive of increased DFS and LCR in patients with head and neck cancer.

키워드

참고문헌

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