Radiation Oncology Journal
- Volume 11 Issue 1
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- Pages.69-77
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- 1993
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- 2234-1900(pISSN)
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- 2234-3156(eISSN)
Result of Radiation Therapy of Cerebellar Medulloblastoma - with Emphasis on the Neuraxis Dose -
전중추신경계 조사선량을 중심으로 한 수아세포종의 방사선치료성적
- Kim Joo Young (Department of Therapeutic Radiology, College of Medicine, Seoul National University) ;
- Kim Il Han (Department of Therapeutic Radiology, College of Medicine, Seoul National University) ;
- Ha Sung Whan (Department of Therapeutic Radiology, College of Medicine, Seoul National University) ;
- Park Charn Il (Department of Therapeutic Radiology, College of Medicine, Seoul National University)
- 김주영 (서울대학교 의과대학 치료방사선과학교실) ;
- 김일한 (서울대학교 의과대학 치료방사선과학교실) ;
- 하성환 (서울대학교 의과대학 치료방사선과학교실) ;
- 박찬일 (서울대학교 의과대학 치료방사선과학교실)
- Published : 1993.06.01
Abstract
Treatment of cerebellar medulloblastoma has been much improved with modern surgical technique for gross total tumor removal and adequate radiation therapy for the whole craniospinal axis. Questions have been arosen about the optimal radiation dose for the preventive treatment of whole cranium and whole spinal axis. Recently, many authors have reported their treatment results as comparable to older data, using lower than conventional dose of 3,600 cGy-4,000 cGy. For 50 patients treated between 1981 and 1990 at the Department of Radiation Therapy of SNUH, retrospective analysis was done for the treatment result, especially the neuraxis control, by radiation dose for the presymptomatic area of the disease. Analysis only by total spinal dose did not give any significant difference. But further analysis by following patient group; 3,600 cGy/150 cGy (n=6), 3,000 cGy/150 cGy (n=10), 2,400 cGy/150 cGy (n=17) and 2,400 cGy/100-120 cGy (n=11) showed significant improvement of neuraxis control by decreasing order (p =0.003). There was no significant difference in overall survival between the groups. For the 19 patients who had been confirmed initially as having no neuraxis disease, TDF 30 was the cur-off value that could prevent neuraxis failure (p =0.004). We couldn't define any TDF value that give reasonable control for the patient group with positive CSF study at initial diagnosis.
후두와에서 발생하는 수아세포종은 육안적 전 종양적출술후 전 중추신경계와 원발부위에 적절한 양의 방사선을 조사 함으로써