磁共振弥散张量成像技术在脑梗死中的临床应用  

Clinical Application of Magnetic Resonance Diffusion Tensor Imaging in Cerebral Infarction

作　　者：郝妮娜[1] 田超[1] 靳松[1] 韩彤[1] 崔世民[1] 

机构地区：[1]天津市环湖医院医学影像科,天津300222

出　　处：《继续医学教育》2017年第12期136-138,共3页Continuing Medical Education

摘　　要：磁共振弥散张量成像(diffusion tensor imaging,DTI)是在磁共振弥散加权成像(diffusion weighted imaging,DWI)基础上发展而来的,其属于功能磁共振成像技术的一种。DTI描述了水分子在神经纤维组织和其他组织中的扩散规律,可以准确地将脑白质纤维的形态学特征显示出来,直接反映病变与相邻脑白质纤维束的空间关系,为临床症状的解释和疾病预后的评估提供了有效的证据。鉴于脑梗死患者的早期影像学诊断,对其临床评估、早期干预治疗已及改善预后有重要的指导意义,DTI在脑梗死患者的影像诊断技术中的应用是目前研究的热点。总结分析近年来国内外相关研究,对DTI基本原理、常用参数及其在脑梗死中的应用予以综述。Diffusion tensor imaging （DTI） is a new magnetic resonance imaging technology that developed base on diffusion weighted imaging （DWI）, DTI has a better way which describe the water module dilute direction in human body nerve fber organization and other organizations, and describe anatomical morphology of white mater precisely, then refect the space relationship between lesions and certain fasciculus, so that explain the clinical symptoms and judgment clinical prognosis. Early imaging diagnosis for cerebral infarction patient will have significant effect on evaluation about clinical evaluation, early intervention treatment and improve prognosis. DTI is very popular among imaging diagnostic technology about cerebral infarction. By summarizing investigating conclusion for recent years, below is for basic method, common parameters and application of DTI in cerebral infarction.

关 键 词：磁共振弥散张量成像 磁共振弥散加权成像 脑梗死 皮质脊髓束 

分 类 号：R445.2[医药卫生—影像医学与核医学]