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1、腦發(fā)育性靜脈異常的CT、MRI診斷作者：馬永華，許守利,孫建剛，劉華，張榮坤單位：山東省泗水縣人民醫(yī)院影像科【摘要】目的探討腦發(fā)育性靜脈異常的CT、MR1表現(xiàn)，提高影像學(xué)診斷水平。方法搜集經(jīng)病理及DSA證實(shí)的DVA38例，7例手術(shù)病理證實(shí)，31例DSA證實(shí)，全部病例均行MRI平掃及增強(qiáng)掃描，8例行CT檢查，冋顧性分析其CT、MRI表現(xiàn)。結(jié)果發(fā)生于幕下11例，幕上27例。8例行CT檢查中，4例平掃未見明顯異常密度灶，2例可見右側(cè)小腦半球出血灶，1例右側(cè)額葉見高低密度混雜病灶。1例增強(qiáng)掃描見右側(cè)額葉條紋狀異常增強(qiáng)血管影及粗大的引流血
2、管相連。MR掃描顯示淸晰，TlWkT2WI表現(xiàn)為條狀血管流空影32例，并發(fā)海綿狀血管瘤5例，表現(xiàn)為不均勻短T1長(zhǎng)T2異常混雜信號(hào)。增強(qiáng)掃描顯示明顯強(qiáng)化的髓靜脈及引流靜脈，呈典型“水母頭”狀。幕卜DVA引流靜脈匯入腦表而靜脈者4例，匯入第四腦室的室管膜下靜脈7例，幕上DVA引流靜脈經(jīng)皮層靜脈匯入腦衣血靜脈竇者15例，匯入室管膜下靜脈者12例，即匯入腦表面靜脈乂匯入腦深靜脈者1例。結(jié)論CT診斷對(duì)該病特異性較小，MRI增強(qiáng)掃描多方位觀察，可清楚顯示DVA的典型表現(xiàn)，MR檢查可完全替代DSA成為DVA首選及確診檢
3、查手段?！娟P(guān)鍵詞】腦;發(fā)育性靜脈異常；體層攝影術(shù);X線計(jì)算機(jī)；磁共振成像BraindevelopmentalvenousanomalyoftheCT,MRIdiagnosisMAYong-hua,XUShou-li,SUNJian-gang,etal.DepartmentofImaging,thePeoplefl]HospitalofSishui,Sishui,273200,China[Abstract]ObjectiveToexplorethebraindevelopmentalvenousanomalyoftheCT,MRI
4、performanceandimprovethelevelofimagingdiagnosis?MethodsDSAcollectedbypathologyandDVA38confirmedcases,sevencasesofsurgicallyandpathologicallyconfirmedDSAconfirmed31cases,allcasesunderwentplainandenhancedMRIscan,8ofroutineCTexamination,theirretrospectiveanalysisofCT,MR
5、Iperformance.ResultsOccurredin11casesofthenextscreen,27casesofsupratentorial.8casesCTexamination,fourcasesofabnormalCTdensityhadnoobviouslesions,2casesofhemorrhagecanbeseentherightcerebellarhemispherelesions,onecasesoftherightfrontallobelesions,seehigh-densitymixed.1
6、casesofCT-likestripesseetherightfrontallobeabnormalvascularshadowtoenhancedrainageandlargebloodvesselsconnected.MRscanrevealedaclear,T1WI,T2WIshowedvascularflowvoidfilmstrip32cases,complicatedbycavernoushemangiomaoffivecases,showedashortT1unevenmixinglengthabnormalT2
7、signal.SignificantlyenhancedCTshowsmedullaryveinsandthevenousdrainage,showingatypical“mcdusnhead”shape?DVAunderthescreenintothecerebralvenousdrainagefromthesurfaceoffourcasesofvein,intothefourthventriclesubependymalveinsin7cases,supratentorialDVAdrainingv
8、einsintothebrainbythecorticalveinfromthesurfaceof15casesofvenoussinus,intothesubependymalFrom12casesofvein,thatis,intothebrainsurfa
