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脑肿瘤放射性治疗的副反应分急性和迟发性,作者报道1例在放疗前后血液动力学与新陈代谢出现变化。女性10岁,头颅CT于松果体区发现一直径2cm×2.5cm的环形强化肿块,伴第三脑室及侧脑室积水。结合脑血管造影及PET检查,拟诊为松果体神经胶质细胞瘤、生殖细胞瘤或非生殖细胞瘤性芽胞细胞瘤而行手术前放疗。照射总剂量为60Gy,分32次,每天1.8～2.0Gy,每周5天,共7周。放疗后肿瘤变化不明显,但局部血流量、氧释放分数、氧代谢率、糖的动力代谢率及比例常数(K_2、K_3)与放疗
Side effects of radiation therapy of brain tumors were divided into acute and delayed, and the authors reported a change in hemodynamics and metabolism before and after radiotherapy. Female 10 years old, cranial CT found in the pineal area of a diameter of 2cm × 2.5cm circular enhancement mass, with the third ventricle and lateral ventricle water. Combined with cerebral angiography and PET examination, the proposed diagnosis of pineal glioblastoma, germ cell tumor or non-germ cell tumor of the tumor and preoperative radiotherapy. The total dose of irradiation 60Gy, 32 times daily 1.8 ~ 2.0Gy, 5 days a week for a total of 7 weeks. The changes of tumor after radiotherapy were not obvious, but the local blood flow, oxygen release fraction, oxygen metabolism rate, kinetic metabolic rate of sugar and proportion constants (K 2, K 3)