资源描述：
《carotid artery stenosis》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、SamuelNgGillianLieberman,MDSeptember2001CarotidArteryStenosis:DiagnosticImagingandMinimallyInvasiveTreatmentSamuelNg,HarvardMedicalSchoolYearIIIGillianLieberman,MDSamuelNgGillianLieberman,MDObjectives1.Toreviewcarotidarterystenosisanditsclinicalimplications2.Topresenttheadvantag
2、esanddisadvantagesofthedifferentmodalitiesusedtoimageandtocharacterizecarotidarterystenosis3.Tointroducepercutaneoustransluminalstent-angioplasty(PTCA)asaminimallyinvasivetreatmentoptionforcarotidarterystenosis2SamuelNgGillianLieberman,MDCarotidArteryStenosis-CarotidArteryStenos
3、israpidlybecomessymptomaticwhenitoccludes75%ofthevesseldiameter-Severestenosiscanresultintransientischemicattacks(TIA)seitherthroughglobalischemiaoranembolicprocess-ThemostseriousconsequenceofcarotidarterystenosisiscerebrovascularaccidentThemortalityfromtheacuteattackis20percent
4、Survivalafterfiveyearsis50percentApproximately25percentofthesurvivorswillhaveasecondevent,leadingtodeathinone-half*-Theincidenceofstrokeinpatientswithgreaterthan75%carotidarterystenosisis5.5%comparedtoanoverallrateincidenceof1.7%peryear*-Duetothesignificantmorbidityandmortalitya
5、ssociatedwithcerebrovascularaccident,accuratediagnosisandeffectivetreatmentofcarotidarterystenosisisindicated3*Chambers,MessinrtSamuelNgGillianLieberman,MDAShortDifferentialforCarotidArteryStenosisAtherosclerosisInflammatory:Takayasu’sArteritisSystemicLupusErythematosisPolyarter
6、itisNodosaNon-Inflammatory:FibromuscularDysplasiaHemangioma4*ChambersSamuelNgGillianLieberman,MDReviewofExtracranialNeurovasculature-MostCommonsitesforextracranialcerebrovascularstenosisaretheproximalinternalcarotidartery(ICA)>proximalvertebralarterydistalICA>proximalcommoncarot
7、id(CC)*GoetzCG,PappertEJ,Ed.TextbookofClinicalNeurology.W.B.SaundersCo.,Philidelphia:1998,pg.376.5*HassSamuelNgGillianLieberman,MDOurPatientA48yearoldfemalewithahistoryofhypertensionanda10packyearhistoryofsmokingpresentedforradiologicwork-upafterexperiencingatransientischemicatt
8、ack(TIA).Oneweekbeforeadmission,shefeltnumbness
