Objective To evaluate the quantitative relationship between white matter tract(WMT) variation resulting from cerebral tumors and shifting of the fractional anisotropy(FA) index in magnetic resonance(MR) diffusion tensor imaging(DTI).

• 目的利用MR-DTI技术行三维脑白质成像,评价脑肿瘤对白质束的改变,探讨脑肿瘤对白质的改变与瘤周部分各向异性值(FA值)改变的量化对应关系。