斑点追踪成像技术对冠心病患者长轴节段性室壁运动异常的评价.pdf

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1、·272·中国中西医结合影像学杂志2015年6月第13卷第3期斑点追踪成像技术对冠心病患者长轴节段性室壁运动异常的评价余习蛟，王月爱，阳力，陈晓琼，雷洋(湖南中医药大学第一附属医院超声科，湖南长沙410007)[摘要]目的：探讨斑点追踪成像技术(speckletrackingimaging，SWI)评价长轴左室节段性室壁运动异常的临床价值。方法：采用STI技术检测41例健康人及29例冠心病患者心尖四腔切面、两腔切面及三腔切面18节段的STI纵向峰值应变(ts)。并与冠状动脉造影异常供血室壁节段结果及M型超声心动图检测室壁运动结果比较。结果：冠心病患者左室壁运动异常

2、节段STI表现为Ls的明显降低，18节段LS均较对照组减低(P

3、ckingimagingstudiesinpatientswithcoronaryheartdiseasetothelongaxisofthesegmentalwallmotionabnormalitiesYUXijiao，WANGYueai，YANGLi，CHENXiaoqiongLElYang．DepartmentofUltrasound，theFirstAfiliatedHospitalofHunanUniversityofTCM，Changsha，410007，China．[Abstract]Objective：Studyofspeckletracking

4、imaging(STI)toevaluatetheclinicalvalueofthelongaxisofleftventricularsegmentalwallmotionabnormalities．Methods：Forty—onehealthysubjectsand29patientswithcoronaryheartdiseasewereex—aminedbySTItechnology．Apicalfourchamberview，twochamberviewandthreechamberviewofleftventricleweredetectedin18

5、segmentsoftheSTIpeaklongitudinalstrainLS．Andtheresultswerecomparedwithabnormalfeedingsegmentalyen—tficularwallofcoronaryangiographyandM·typeultrasonicheartbeatdiagramtodetectwallmotionamplituderesults．Results：Leftventricularwallmotionabnormalitiessegmentofpatientswithcoronaryheartdise

6、aseshowedpeakLSobviouslyreducedbySTI．M-typeultrasonicheartbeatdiagramshowedventricularwallmotionandwallthickeningratereduceordisappear．STIshowedthecoronaryheartdiseasegroupof18segmentsofLSwerelowerthannormalcontrolgroupthediferencewasstatisti—callysignificant(P<0．01)．M-typeultrasonich

7、eartbeatgraphiccoronaryheartdiseasegroupof18segmentalventricularwallmotionamplitudewerelowerthannormalcontrolgroup，thedifferencewasstatisticallysignificant(P<0．01)．Thepositivedetec-tionrateofcoronaryheartdiseasewas87-3％bySTI，thatwas63_3％byM—typeultrasonicheartbeatdiagram，therewassigni

8、fi—ca