DTI对鉴别脑低级别胶质瘤、脑梗死和病毒性脑炎的价值.pdfVIP

730 中枢神经影像学 DTI对鉴别脑低级别胶质瘤、脑梗死和病毒性脑炎的价值 陈晓兵，罗天友，彭娟 【摘要】 目的：探讨磁共振扩散张量成像在鉴别低级别脑胶质瘤、脑梗死和病毒性脑炎中的应用价值。方法：22例低 级别脑胶质瘤、26例急·】生或亚急性期脑梗死和18倒病毒性脑炎患者在治疗或手术前行常规MRI和DTI检查。脑低级剐 胶质瘤患者均经手术病理证实，病毒性脑炎和脑梗死患者均经-】蠡床治疗度随访证实。测量并计算3组病灶的表现扩散系 0．42士0．08，脑梗死组分别为(0．54士0．1 价值。 【关键词】脑疾病；胶质瘤；脑梗死；病毒性脑炎；磁共振成像}扩散张量成像 Diffusiontensor inthedifferentialof cerebral infarctionandviral imaging diagnosislow-gradeglioma，cerebral encephalitis CHEN of of Juan．Department XiangxiangCity，Hunan Xiao-bing，LUOTian-you，PENG Radiology，People’sHospital 411400，P．R．China thevalueofdiffusiontensor thedifferential of [Abstract]Objective：Tostudy imaging(DTI)indiagnosislow—grade cerebral infarctionandviral MR andDTlwere in22 glioma，cerebral encephalitis．Methods：ConventionaIimaging performed with caseswith cerebral casesacuteorsubaeutecerebralinfarctionand18caseswithacuteorsubacute low-gradeglioma．26 viral beforetreatmentor ofcerebral wasconfirmed and encephalitis surgery．Thediagnoses low—gradeglioma bysurgerypa— the ofcerebral made infarction／viralwere diffusion thology，anddiagnoses encephalitis byclinicallyfollow-up．Theapparent coefficient(ADc)value、relativeADcvalue(rADC)、fractionaI andrelativeFA anisotrophy(FA)value thethree measuredandcalculated meanADC and were values，rADCvalues，FAvalues groups