资源描述：
《脑发育性静脉异常的ct、mri诊断论文》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、脑发育性静脉异常的CT、MRI诊断论文马永华许守利孙建刚刘华张荣坤【摘要】目的探讨脑发育性静脉异常的CT、MRI表现，提高影像学诊断水平。方法搜集经病理及DSA证实的DVA38例，7例手术病理证实，31例DSA证实，全部病例均行MRI平扫及增强扫描，8例行CT检查，回顾性分析其CT、MRI表现。结果发生于幕下11例，幕上27例。8例行CT检查中.freelentalvenousanomalyoftheCT,MRIperformanceandimprovethelevelofimagingdiagnosis.MethodsDSAcollectedbypat
2、hologyandDVA38confirmedcases,sevencasesofsurgicallyandpathologicallyconfirmedDSAconfirmed31cases,allcasesunderination,theirretrospectiveanalysisofCT,MRIperformance.ResultsOccurredin11casesofthenextscreen,27casesofsupratentorial.8casesCTexamination,fourcasesofabnormalCTdensityhadn
3、oobviouslesions,2casesofhemorrhagecanbeseentherightcerebellarhemispherelesions,onecasesoftherightfrontallobelesions,seehigh-densitymixed.1casesofCT-likestripesseetherightfrontallobeabnormalvascularshadostrip32cases,plicatedbycavernoushemangiomaoffivecases,shoixinglengthabnormalT2
4、signal.SignificantlyenhancedCTshoedullaryveinsandthevenousdrainage,shoedusahead”shape.DVAunderthescreenintothecerebralvenousdrainagefromthesurfaceoffourcasesofvein,intothefourthventriclesubependymalveinsin7cases,supratentorialDVAdrainingveinsintothebrainbythecorticalveinfromthesu
5、rfaceof15casesofvenoussinus,intothesubependymalFrom12casesofvein,thatis,intothebrainsurfaceandintothecerebralveindeepveinin1case.ConclusionCTdiagnosisofthedisease-specificsmall,MRIscantoenhancemulti-directionalobservation,DVAclearlyshople,MRexaminationcanbeaperfectsubstituteforDS
6、AasafirstchoiceandDVAinspectionmeansconfirmed.Keyentalvenousanomaly;tomography;X-rayputed;magicresonanceimage脑发育性静脉异常(developmentalvenousanomaly，DVA)又称为静脉血管畸形或静脉瘤，1963年由Courville1首先报道。过去认为是一种少见的脑血管异常，然而随着CT和MRI的广泛应用，目前认为是最常见的脑血管畸形。本文回顾性分析经病理及DSA证实的DVA，探讨其CT与MRI表现，提高影像学诊断水平。材料与方法1
7、.一般资料再省影像所学习时搜集2003.10～2008.12期间经病理及DSA证实的DVA38例，7例手术病理证实，31例DSA证实，全部病例均行MRI平扫及增强扫描，13例行DR扫描采用GESignalEXCITEHD3.0T超高场强MR扫描机。应用标准头部8通道线圈。所有病例均行常规MRI平扫及增强扫描。常规MRI平扫包括快速自旋回波序列(FSE)T2RI表现所有病例中有1例平扫未发现异常，其余37例均显示，T1)，1986年Lasjanunias2认为本质上该病是一种正常引流静脉的非病理性变异，故称为DVA。这一称谓正逐渐被许多作者所接受。DVA是
8、尸检中最常见的脑血管畸形，它是由于第1、9号染色体Tie-2突变导致误义激活引起
