2Kurita H, Kawahara N, Asai A, et al. Radiation-induced apoptosis of oligodendroeytes in the adult rat brain [J]. Neurol Res, 2001,23 (8) :869-874.
3Karniryo T, Lopes MB, Kassell NF, et al. Radiosurgery-induced microvascular alterations precede necrosis of the brain neuropil [J]. Neurosurgery,2001,49(2) :409-415.
4Munter MW,Karger CP, Reith W, et al. Delayed vascular injury after single high-dose irradiation in the rat brain: histologic immunohistochemical and angiographic studies[J]. Radiology, 1999,212(2) :475-482.
5Meyers CA, Geara FET, Wong PF, et al. Neurocognitive effects of ther-apeutic irradiation for base of skull tumors[J]. Int J Radiat Oncol Biol Phys.2000.46(1) :51-55.
6Chart YL,Roebuck DJ,Yuen MP, et al. Long-term cerebral metabolite changes on proton MRS in patients cured of acute lymphoblastic leukemia with previous intrathecal methotrexate and cranial irradiation prophylaxis[J] .Int J Radiat Oncol Biol Phvs,2001,50(3):759-763.
7Chan YL, Yeung DK, Leung SF, et al. Proton MRS of late delayed radiation-induced injury of the brain[J] .J Magn Reson Imaging, 1999,10(2) : 130-137.
8Thiel A, Pietrzyk U, Sturm V, et al. Enhanced accuracy in differential diagnosis of radiation necrosis by PET-MRI coregistration: technical case report [J]. Neurosurgy, 2000,46 (1) : 232-234.
9Norman Z, Leed MD, Stephen A, et al. Evaluation of diagnostic neuroradiology from 1904 to 1999[J] .Radiology,2000,217(2):309-317.
10Cousins JP. Clinical MR spectroscopy: fundamentals, current applications and future potential[J]. AJNR, 1995,164(6) : 1337-1347.