小脑前下动脉的显微解剖分析与临床应用

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1、天津医科大学硕士学位论文hearingcannotbepreservedusingthisapproach。珏eRSAiseasiertoCalTyo嵋theIAMcanbeseenafterdrillingtheboneofinternalacousticgate．111enervesCanbeeasilyberecognizedaftertheexposureoflAM，besidesitisespeciallyconvenientfortheOA-AICAbypass．3．morigins，branches，course

2、sandvariationsareobservedinimagesofDSA,especiallytheanastomosiswithPICAsandSCAs．AICAoriginatesfromBAinoneortwoorthreetrunks．6casesofAICA．PICAthinkswerefound．AstrangecaseofAICA-ECWasdiscovered．111eanastomosisofAICA-PICAorAICA-SCAcannotbeseenverychearlyontheDSAimages．

3、AICAaneurysmsCanbeverifiedinsizeandappearanceonDSAimages．4。刀把lengthofoccipitalarteryis79．32*5．22mm，whiletherangetoAICAofCPAis55．24+6．32mm．Conclusion1．NormalandvariableAICAhaveimportantsignificanceonneurosurgeryandendovasculartherapy．2．ThesizeandlocationofAICAaneurys

4、mshouldbetakenintoconsiderationwhenehoossingasurgicalapproach．Combineapproachesaregoodforacomplexone．Endovasculartreatmentisalsoagoodideafortheaneurysmwimrightsizeandfightlocation，especiallyforthosewhothevesselisinvolvedin．3．WhentreatinglesionsofCPAinsideoroutsideth

5、eIAM，ThreesurgicalapproachesCanbechosen。砀emiddlefossaapproachprovidethegreatviewofIAMwithoutinjuringthelabyrinthine，andthehearingmaybepreserved．TheTLAisthenearestroutetotheIAMandCPA，whichprovidethemostwidestviewoftheCPA，thefacialnervemaybeinjuredduringthesurgery,hea

6、tingCannotbepreserveddrringthisapproach．111eRSAiseasiertobecarriedoutandtheL6MCanbeseenaRerdrillingtheboneofintemalacousticgate．ThenervescailbeeasilyrecognizedaftertheexposureoflAM。4．砀eAICACanbesacrificedinsurgeryforgiantaneurysmsandtumorsundercertainconditions．111e

7、BOTtestissuggested．5．111erevascularizationofAICAisrare，theoccipitalarterywouldbethebestdonorarteryandPICACallbesuitableinsomecases．．6。Winlassistanceofendoscopy，exposureofCPAincreasedwithoutincreasingthetractionofcerebellum．Wit}lthehelpofendoscopy，theneurovascularcom

8、plexTV天津医科大学硕士学位论文canbeseenveryclearly．TheendoscopywillplayallimportantroleinsurgeriesoftumorsandⅣⅣD．Keywords：anteriorinferiorcerebellarar