文档介绍：Intracranialaneurysmdiagnosisandtherapy*EpidemiologyMorbility:6~:Lowest:India、theMiddleEast、China1~2/100thousandsHighest:Finland、Japan、~:~:monage:40-60years,about2/3。LinnFH,RinkelGJ,AlgraA,:roleofregion,year,putedtomography:ameta-;27(4):625-9.*Aneurysmetiology1、Congenital80%~90%2、Arteriosclerosis10%~18%3、%~%4、%*Riskfactors1、Age2、heredity3、bloodflowdynamic4、Defectsinthearterialwallofthemiddle5、Aneurysmscoexistwithothercongenitalanomalies6、Hypertension*Aneurysmclassificationsize::<;:-;:-;:≥*Aneurysmclassification shape:1、capsular2、intervallum3、Fusiform*anteriorofWillisarterialcircle>80%internalcarotidarteryICA 30%anteriorcerebralartery ACA30%middlecerebralartery MCA20%vertebralarteryandbasilararteryVA&BA 5%others 15%monposition:*Aneurysmclassification position:Rhoton,(4),October20020*LocationsofaneurysmruptureTop64%Middle10%Neck2%unclear24%Top-rupture*Clinicalpresentationofintracranialaneurysm non-rupture 1、Noclinicalsymptoms,identaldiscovery 2、Intracranialpressuresymptoms*