中国医科院肿瘤医院放射治疗专家秦德兴教授利用现代科学技术，耗费Ic年时间，摸清了治疗脑瘤中放、化疗之间的关系及放射线在促进化疗药物渗透性方面的作用和机理，为制订治疗脑瘤最佳计划提供T科学依据。脑瘤单纯化疗时，化疗药物往往被血脑屏障阻隔，影响药物进入脑内，收效 Professor Qin Dexing, a radiotherapy expert from Cancer Hospital of Chinese Academy of Medical Sciences, used modern science and technology and took Ic years to find out the role and mechanism of radiotherapy in promoting the chemotherapeutic drug permeability. The best plan for treating brain tumors provides T scientific basis. Chemotherapy is usually blocked by the blood-brain barrier when the brain tumor is treated with chemotherapy alone, which will affect the drug’s entry into the brain.