Purpose:To study the normal changes of cerebral white matter among infants by analyzing the anisotropy of different regions in different ages with diffusion tensor imaging(DTI).

• 目的:应用弥散张量成像分析不同年龄段婴幼儿的不同部位脑白质的各向异性。材料和方法:将26例正常婴幼儿(年龄4d至24个月)分为4组:第一组7例,小于6个月;