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时间:2018-12-06
《左房追踪技术评价成人继发孔型房间隔缺损患者左房功能与肺动脉收缩压的相关性》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、左房追踪技术评价成人继发孔型房间隔缺损患者左房功能与肺动脉收缩压的相关性【摘要】目的应用左心房追踪技术对成人继发孔型房间隔缺损患者左房功能与肺动脉收缩压的相关性进行评价。方法50例伴肺动脉高压的成人S-ASD患者,其中轻度18例,中度22例,重度10例,分别采集并储存标准心尖两腔心、心尖四腔心动态二维图像,运用LAVT技术获得左房容积-时间曲线和容积变化速率曲线。记录时间曲线上左房最大容积、最小容积及收缩前容积,用体表面积对以上的容积指标进行校正,得到相应的容积指数:LAVImax、LAVIpre、LAVImin,计算
2、左房整体、被动、主动排空量,整体、被动、主动排空分数。记录容积变化速率曲令的舒张早期排空速率峰值、舒张晚期排空速率峰值,收缩期充盈速率峰值。结果S-ASD患者的LAVItotal、LAVItEF、dv/dtS、LAVIact、LAVIaEF与PASP呈负相关,dv/dtA、LAVIpass、LAVIpEF、dv/dtE与PASP无明显相关性。结论LAVT技术能够准确的评价S-ASD患者左房功能与PASP的相关性,为临床提供有价值的信息。【关键词】房间隔缺损;左心房功能;肺动脉收缩压;左心房追踪技术DOI:10.1416
3、3/j.cnki.ll-5547/r.2017.16.028CorrelationbetweenleftatrialfunctionandpulmonaryarterialsystolicpressureinadultsecundumatrialseptaldefectpatientsevaluatedbyleftatrialvolumetrackingGAOFan.DepartmentofUltrasound,HenanProvincePeople’sHospital,Zhengzhou450003,China【Ab
4、stract】ObjectiveToevaluatedcorrelationbetweenleftatrialfunctionandpulmonaryarterialsystolicpressureinadultsecundumatrialseptaldefectpatientsbyleftatrialvolumetracking.MethodsAmong50patientswithpulmonaryarterialsystolicpressureandadultsecundumatrialseptaldefect,t
5、herewere18mildcases,22moderatecasesand10severecases,dynamictwo-dimensionalimagesofstandardapextwocavityandapexfourcavityheartswascollectedandstored,andleftatrialolumeindex-timecurveandvolumechangeratecurvewasobtainedbyLAVT.maximalleftatrialvolume,minimalleftatri
6、alvolume,presystolicleftatrialvolumewererecordedfromvolume-timecurveandbodysurfaceareawasusedtocorrectthesevolumeindexes.Thecorrespondingvolumeindexeswerecollected:LAVImax,LAVIpre,LAVImin,soastocalculateleftatrialoverall,passive,activeemptyingvolumeindexs,overal
7、l,passive,activeemptyingfraction.Earlydiastolicleftatrialemptyingrate,latediastolicleftatrialemptyingratepeakandsystolicleftatrialfillingratepeakwererecordedfromemptyingfractioncurve.ResultsS-ASDpatientshadLAVItotal,LAVItEF,dv/dtS,LAVIactandLAVIaEFnegativelycorr
8、elatedwithPASP,anddv/dtA,LAVIpass,LAVIpEFanddv/dtEhadnocorrelationwithPASP.ConclusionLAVTcanaccuratelyevaluatecorrelationbetweenleftatrialfunctionandPASPinS-ASDpatien
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