대한방사선치료학회지 (The Journal of Korean Society for Radiation Therapy)
- 제17권2호
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- Pages.113-124
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- 2005
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- 1598-8449(pISSN)
전립선암의 방사선치료 시 직장풍선의 유용성 평가
Rectal Balloon for the Immobilization of the Prostate Internal Motion
- 이상규 (연세대학교의과대학 방사선종양학과) ;
- 백종걸 (연세대학교의과대학 방사선종양학과) ;
- 김주호 (연세대학교의과대학 방사선종양학과) ;
- 전병철 (연세대학교의과대학 방사선종양학과) ;
- 조정희 (연세대학교의과대학 방사선종양학과) ;
- 김동욱 (연세대학교의과대학 방사선종양학과) ;
- 나수경 (김천대학 방사선과) ;
- 송태수 (연세대학교의과대학 방사선종양학과) ;
- 조재호 (연세대학교의과대학 방사선종양학과)
- Lee Sang-Kyu (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
- Beak Jong-Geal (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
- Kim Joo-Ho (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
- Jeon Byong-Chul (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
- Cho Jeong-Hee (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
- Kim Dong-Wook (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
- Na Soo-Kyong (Department of Radiology, Kim-cheon College) ;
- Song Tae-Soo (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center) ;
- Cho Jae-Ho (Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center)
- 발행 : 2005.09.01
초록
목 적 : 전립선암의 방사선치료에서 전립선의 움직임을 최소화하고 직장 벽의 선량한계를 극복할 수 있는 방법으로 직장 풍선을 사용하여 치료 부작용을 줄이고 환자 setup시 직장풍선의 위치 재현성을 분석하며 임상치료에서의 유용성을 연구하였다. 대상 및 방법 : 본원에서 전립선암에 방사선치료를 위해 내원한 환자 5명를 대상으로 하였다. 각각의 환자마다. 자체 제작한 직장풍선을 삽입하고, 주사기를 이용하며 60 cc의 공기를 주입 후 치료 초기, 중기, 후기 3회에 걸쳐 CT Simulation 영상을 획득하여 Pinnacle
Purpose : The using of endo-rectal balloon has proposed as optimal method that minimized the motion of prostate and the dose of rectum wall volume for treated prostate cancer patients, so we make the customized rectal balloon device. In this study, we analyzed the efficiency of the Self-customized rectal balloon in the aspects of its reproducibility. Materials and Methods : In 5 patients, for treatment planning, each patient was acquired CT slice images in state of with and without rectal balloon. Also they had CT scanning samely repeated third times in during radiation treatment (IMRT). In each case, we analyzed the deviation of rectal ballon position and verified the isodose distribution of rectum wall at closed prostate. Results : Using the rectal balloon, we minimized the planning target volume (PTV) by decreased the internal motion of prostate and overcome the dose limit of radiation therapy in prostate cancer by increased the gap between the rectum wall and high dose region. Conclusion : The using of rectal balloon, although, was reluctant to treat by patients. View a point of immobilization of prostate internal motion and dose escalation of GTV (gross tumor volume), its using consider large efficients for treated prostate cancer patients.