一项最大规模的研究结果显示,放射治疗可损伤幼儿阅读能力的发育,即使他们面临治疗失败的一般风险而选用较低剂量的放射治疗,其结果亦是如此。研究人员认为,不论降低放射剂量与否,年龄幼小的脑部肿瘤——成神经管细胞瘤患儿的放射治疗与年龄较大的儿童相比,其受到的智商和阅读能力的损伤似乎更为严重。 One of the largest studies shows that radiation therapy can impair the ability of young children to read, as is the case with lower doses of radiotherapy, even though they face the general risk of failure. Researchers believe that irradia- tion in children with younger brain tumors, medulloblastoma, appears to be more impaired in IQ and reading ability than older children, regardless of radiation dose reduction or not serious.