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时间:2020-04-02
《超声三维斑点追踪及面积应变技术在冠心病室壁运动异常.pdf》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、四川大学学报(医学版)2013;44(4):651-656JSichuanUniv(MedSciEdi)超声三维斑点追踪及面积应变技术在冠心病室壁运动异常检测中的价值*李娅姣,李晨,李春梅,张立,白文娟,张晓玲,唐红,饶莉△四川大学华西医院心内科(成都610041)【摘要】目的观察超声三维斑点追踪技术(three-dimensionalspeckletrackingechocardiography,3DSTE)和面积应变(areastrain,AS)在冠心病所致室壁运动异常检测中的价值。方法将疑似冠心病的46例患者在
2、冠脉造影检查前分别行常规和三维超声心动图检查,根据冠脉造影结果分为心肌缺血组(至少一支冠状动脉主要分支狭窄≥70%)和对照组(冠脉狭窄程度<70%)。运用常规二维超声心动图技术计算节段性室壁运动积分(wall-motionscore,WMS)及室壁运动积分指数(WMSindex,WMSI),三维斑点追踪技术计算应变参数。运用受试者工作特性(receiver-operatingcharacteristic,ROC)曲线及线性回归分析超声指标与冠脉造影结果间的相关性。结果与对照组相比,冠状动脉严重狭窄的患者(狭窄程度≥7
3、0%)左室射血分数下降,WMSI升高,整体应变下降。ROC曲线显示节段性WMS检测局限性心肌缺血及梗死的敏感度均较低,3DSTE节段性应变参数可准确评估局限性室壁运动异常。在所有应变参数中节段性面积应变>-25%用于检测缺血及梗死区域的敏感度和特异度最高。结论3DSTE是快速准确评估节段性心肌运动的重要手段,AS是准确性及可重复性高的重要指标。【关键词】三维斑点追踪面积应变室壁运动异常超声心动图ValueofThree-dimensionalSpeckle-trackingEchocardiographyandthe
4、NovelAreaStraininDetectingWallMotionAbnormalitiesofCoronaryArteryDiseasesLIYa-jiao,LIChen,LIChun-mei,ZHANGLi,BAIWen-juan,ZHANGXiao-ling,TANGHong,RAOLi△.DepartmentofCardiology,WestChinaHospital,SichuanUniversity,Chengdu610041,China△Correspondingauthor,E-mail:lrl
5、z1989@cd120.com【Abstract】ObjectiveToinvestigatethevalueofthree-dimensionalspeckletrackingechocardiography(3DSTE)andthenovelareastrain(AS)indetectingwallmotionabnormalitiescausedbycoronaryarterydiseases.MethodsConventionaland3Dechocardiographywasdoneonforty-sixp
6、atientssuspectedwithcoronaryheartdiseases,immediatelybeforetheyreceivedcardiaccatheterization.Segmentalwall-motionscore(WMS)andWMSindex(WMSI)wereassessedonconventionaltwo-dimensional(2D)images,andstrain-derivedparameterswereanalyzedbyspeckletrackingtechniquebas
7、edon3Dimages.TheaccuracyofechocardiographicparameterstoassesstheregionalmyocardialischemiawastestedagainstcoronaryangiographyresultsusingROCcurveanalysisandlinearregression.ResultsComparedwithcontrols,patientswithseverecoronarystenosis(≥70%coronarystenosis)hadl
8、owerleftventricularejectionfraction,higherWMSIandlowerglobalstrains.ROCcurveanalysisdemonstratedthatsegmentalWMShadrelativelypoorsensitivityforregionalmyocardialischemiaandi
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