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磁共振弥散张量成像(diffusion tensor imaging,DTI)是最近几年逐步发展起来的一种水成像技术,是通过各项异性分数(fractional anisotropy,FA)和表观弥散系数(apparent diffusion coefficient,ADC)测量值定量反映脑白质纤维束的损伤程度和完整性,正确地判断肿瘤与白质纤维束的关系,鉴别脑肿瘤的良恶性,给临床治疗和预后提供有价值的信息。
Magnetic resonance diffusion tensor imaging (DTI) is a kind of water imaging technique developed gradually in recent years. It is characterized by various fractional anisotropy (FA) and apparent diffusion coefficient (ADC ) The measured values quantitatively reflect the degree of injury and integrity of the white matter fiber bundle, correctly determine the relationship between the tumor and the white matter fiber bundles, identify the benign and malignant brain tumors, and provide valuable information for clinical treatment and prognosis.