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ID:51896433
大小:7.10 MB
页数:29页
时间:2020-03-18
《应用斑点追踪技术评价扩张型心肌病患者左室心肌应变及扭转运动.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、杨杨斑点追踪技术计价扩jK型心fjJ【稍患11i左Ii心肌心变及抓转运动应用斑点追踪技术评价扩张型心肌病患者左室心肌应变及扭转运动中文摘要目的应用_维斑点追踪技术(2D—Speckletrackingimaging,2D—STI)评价扩张型心肌病(Dilatedcardiomyopathy,DCM)患者芹窒心肌纵向峰值应变(Peaklongitudinalstrain,PLS)、径向峰值应变(Peakradialstrain,PRS)、圆周峰值应变(Peakcircumferentialstrain,PCS
2、)及芹室■尖瓣、乳头肌、心尖短轴水平、左室整体扭转角度的特点和规律,探讨其在DCM患者心肌运动及治疗效果评估中的临床应用价值。对象与方法应用GEvividE9超卢诊断仪,配M5S探头(频率1.8~3.6MHz),对27例DCM患者及30例对照组健康志愿者运用STI技术进行超声心动图检查。每例患者分别采集连续三个心动周期的心尖四腔切面、心尖■腔切面、左室长轴切面和左室二尖瓣环、乳头肌、心尖水平短轴切面的■维灰阶动态图像,应用GEEchoPAC分析软件对上述各切面图像进行分析,分别计算各节段心肌收缩期的纵向峰值
3、应变、圆周峰值应变及径向峰值应变、各节段心肌的旋转角度及左室整体扭转角度并生成各节段的应变值、旋转角度、左室整体扭转角度曲线图。结果DCM组心肌收缩期的PLS、PRS、PCR与对照组比较显著降低,差异有统计学意义(火O.01)。DCM组_.尖瓣、乳头肌、心尖短轴水平旋转角度与对照组比较显著降低,差异有统计学意义(P<0.01),DCM组左室整体扭转角度与对照组比较明显降低,差异有统计学意义(P4、心肌应变及扭转运动特点,为临床评价DCM忠者芹室心肌运动及评价治疗效果提供有价值的参考。关键词:超声心动描计术,斑点追踪,扩张型心肌病,心肌扭转,应变扬州人学f哦I‘学ft论文AssessmentofleftventriculartwistandstraininpatientswithDilatedCardiomyopathybyspeckleobjectivetrackingimagingAbstractTwo—dimensionalspeckletracking(2D.STI)inpatientswit5、hdilatedcardiomyopathymyocardial(DCM)peaklongitudinalstrain(PLS),peakradialstrain(PRS),peakcircumferentialstrain(PCS)andleftventricularshortaxismitralvalvelevel.papillarymusclelevelandapicalshort—axishorizontalrotationangleandtheshortaxisleftventriculartor6、sionanglecharacteristicsand1aWSfortheclinicalevaluationofpatientswithdilatedcardiomyopathyandevaluationofthetherapeuticeffectprovidingsportsvaluablereference.MethodsAppliedGEvividE9ultrasounddiagnosticwithM5Sproberfrequency1.8~3.6MHz).in27patientswithDCMan7、d30casesinthecontrolgroupofhealthyvolunteersusingSTItechnologyechocardiography.Eachpatientwerecollectedforthreeconsecutivecardiaccyclesapicalfour—chamberview,apicaltwo—chamberview,leftventricularandleftventricularlongaxisviewofthemitralannulus.papillarymus8、cles.theapexshortaxisviewofthetwo.dimensionalgray.scalelevelsofdynamicimages,GEEchoPACanalysissoftwareapplicationforimageanalysissectionabove,thepeaklongitudinalstrainwerecalculatedforeachsegmentmyocardialsys
4、心肌应变及扭转运动特点,为临床评价DCM忠者芹室心肌运动及评价治疗效果提供有价值的参考。关键词:超声心动描计术,斑点追踪,扩张型心肌病,心肌扭转,应变扬州人学f哦I‘学ft论文AssessmentofleftventriculartwistandstraininpatientswithDilatedCardiomyopathybyspeckleobjectivetrackingimagingAbstractTwo—dimensionalspeckletracking(2D.STI)inpatientswit
5、hdilatedcardiomyopathymyocardial(DCM)peaklongitudinalstrain(PLS),peakradialstrain(PRS),peakcircumferentialstrain(PCS)andleftventricularshortaxismitralvalvelevel.papillarymusclelevelandapicalshort—axishorizontalrotationangleandtheshortaxisleftventriculartor
6、sionanglecharacteristicsand1aWSfortheclinicalevaluationofpatientswithdilatedcardiomyopathyandevaluationofthetherapeuticeffectprovidingsportsvaluablereference.MethodsAppliedGEvividE9ultrasounddiagnosticwithM5Sproberfrequency1.8~3.6MHz).in27patientswithDCMan
7、d30casesinthecontrolgroupofhealthyvolunteersusingSTItechnologyechocardiography.Eachpatientwerecollectedforthreeconsecutivecardiaccyclesapicalfour—chamberview,apicaltwo—chamberview,leftventricularandleftventricularlongaxisviewofthemitralannulus.papillarymus
8、cles.theapexshortaxisviewofthetwo.dimensionalgray.scalelevelsofdynamicimages,GEEchoPACanalysissoftwareapplicationforimageanalysissectionabove,thepeaklongitudinalstrainwerecalculatedforeachsegmentmyocardialsys
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