第 1程 (60 Gy/30f)
第 1程(46 Gy/23f)
GTV = 强肿瘤
术腔加任何残存增
GTV1 =术腔加任何残存增强肿瘤 (术后MRI,T1增强扫描)加周围水 肿(T2 或 FLAIR MRI 扫描的高密度
(术后MRI,T1增强扫描) CTV = GTV 加2 cm边界* PTV = CTV加3–5mm 边界
Fred H. Hochberg,Amy Pruitt, Assumptions in the radiotherapy of glioblastoma[J]. Neurology,1980, 30(9):907-911.
术前肿瘤 复发肿瘤 水肿
Wallner KE, Galicich JH, Krol G, Arbit E, Malkin MG. Patterns of failure following treatment for glioblastoma multiforme and anaplastic astrocytoma. Int J Radiat Oncol Biol Phys 1989;16:1405–9.
and 9.2 cm
EORTC和RTOG恶性胶质瘤靶区勾 画指南
EORTC 治 疗 靶 区 (EORTC
22981/22961, 26071/22072 (Centric), 26981–22981, and AVAglio研 究)
RTOG治疗靶区
0913, and AVAglio研究)
(RTOG 0525, 0825,
• 术后残存患者,肿瘤以局部复发为主 • 肉眼切除的肿瘤,肿瘤复发沿白质束浸润
• over 80% of recurrences within a 2 cm margin of the contrast enhanced lesion on CT- or MRI scans