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ID:32815740
大小:2.32 MB
页数:34页
时间:2019-02-16
《dti定量房室瓣环运动评价扩张型心肌病左、右心室功能》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、南昌大学硕士学位论文DTI定量房室瓣环运动评价扩张型心肌病左、右心室功能姓名:吴平申请学位级别:硕士专业:影像医学与核医学指导教师:叶军;朱剑芳201206摘要摘要目的:应用多普勒组织成像技术(Dopplertissueimaging,DTI)定量二尖瓣环、三尖瓣环的运动评价扩张型心肌病(dilatedcardiomyopathy,DCM)左、右心室整体功能。方法:采用PhilipsIE33彩色多普勒超声诊断仪,利用DTI技术中的主要检测方法。多普勒组织速度图及多普勒二尖瓣血流频谱法对比检测40例DCM病人和40例健康成人对照者。用彩色多普勒技术,于心尖
2、四腔观,获得二尖瓣血流频谱,测量二尖瓣血流指标:舒张早、晚期血流峰值速度E和A,然后计算比值E/A。于心尖四腔观及心尖左室长轴观,获得二尖瓣环、三尖瓣环多普勒组织速度图像,分别测房室瓣环(二尖瓣环、三尖瓣环)收缩期、舒张早期和舒张晚期峰值速度Vs、Ve、Va,然后计算比值(Ve/va)。分析左、右心室功能的相关性。结果:1、血流频谱法:比较对照组,DCM组的舒张期E、A值差异无统计学意义(P>O.05);E/A比值升高,有显著性差异(P<0.01)。2、组织多普勒法:比较对照组,DCM组Vs值、Ve值、Va值、Ve/Va比值减低,有显著性差异(P3、1)。3、DCM组左、右心室功能有显著相关性,收缩期Vs(F0.77,P<0.01),舒张期Ve/Va比值(r=0.69,P<0.01)。结论:1、DTI结合多普勒血流频谱法,可以准确评价DCM患者左室舒张功能。2、DCM组左、右心室功能呈正相关,说明DCM患者左、右心室,存在不同程度的收缩、舒张功能障碍。3、DTI技术可以评价DCM患者心室功能的受损程度,对指导临床的诊断、治疗有重要的意义。关键词:DTI;二尖瓣环;三尖瓣环;扩张型心肌病;心室功能IIAbstractABSTRACTobjective:TosearchformeworthofDoppl4、ertissueimaging(DTI)intheevaluationofdiastolicandsystolicfunctioninbothleftandrightventriclesinpatientsofdilatedcardiomyopathy(DCM).Methods:FortypatientswithDCMandfortyhealthyindividualswereenrolled,byusingthecontrastdetectionoftheDTIandmitralFrancewithPhilipsIE33colorDopplerultr5、asonicdiagnosticapparatus.Measuredmitralindicators:ThepeakvelocityoftheearlydiastolicandthelatediastolicE,A,andthencalculatetheratioE/A;MeasuredDTIindicators:Thepeakmotionvelocitiesatsystolephase(Vs),earlydiastolicphase(Ve),latediastolicphase(Va),andthencalculatetheratioVe/Va.exa6、minedthepossiblecorrelationofleftventricularandrightventricularfunctions.Results:1.colorDopplerimaging:comparisonwiththecontrolgroup,groupEandAtherewerenostatisticalsignificance(P0.05).2.ti7、ssueDopplerimaging:comparisonwiththecontrolgroup,thevalueofdilatedcardiomyopathygroupVs,Ve,Va,Ve/Varatiodecreased,therewerestatisticalsignificance(P<0.01).3.Theleftventricularfunctionhadapositiverelation、^,ithrightventricularfunction,Ve/Va(r=0.69,P<0.01),Vs(FO.77,P<0.01).Conclusi8、ons:1.DTItocombinecolorDopplerimagingcan
3、1)。3、DCM组左、右心室功能有显著相关性,收缩期Vs(F0.77,P<0.01),舒张期Ve/Va比值(r=0.69,P<0.01)。结论:1、DTI结合多普勒血流频谱法,可以准确评价DCM患者左室舒张功能。2、DCM组左、右心室功能呈正相关,说明DCM患者左、右心室,存在不同程度的收缩、舒张功能障碍。3、DTI技术可以评价DCM患者心室功能的受损程度,对指导临床的诊断、治疗有重要的意义。关键词:DTI;二尖瓣环;三尖瓣环;扩张型心肌病;心室功能IIAbstractABSTRACTobjective:TosearchformeworthofDoppl
4、ertissueimaging(DTI)intheevaluationofdiastolicandsystolicfunctioninbothleftandrightventriclesinpatientsofdilatedcardiomyopathy(DCM).Methods:FortypatientswithDCMandfortyhealthyindividualswereenrolled,byusingthecontrastdetectionoftheDTIandmitralFrancewithPhilipsIE33colorDopplerultr
5、asonicdiagnosticapparatus.Measuredmitralindicators:ThepeakvelocityoftheearlydiastolicandthelatediastolicE,A,andthencalculatetheratioE/A;MeasuredDTIindicators:Thepeakmotionvelocitiesatsystolephase(Vs),earlydiastolicphase(Ve),latediastolicphase(Va),andthencalculatetheratioVe/Va.exa
6、minedthepossiblecorrelationofleftventricularandrightventricularfunctions.Results:1.colorDopplerimaging:comparisonwiththecontrolgroup,groupEandAtherewerenostatisticalsignificance(P0.05).2.ti
7、ssueDopplerimaging:comparisonwiththecontrolgroup,thevalueofdilatedcardiomyopathygroupVs,Ve,Va,Ve/Varatiodecreased,therewerestatisticalsignificance(P<0.01).3.Theleftventricularfunctionhadapositiverelation、^,ithrightventricularfunction,Ve/Va(r=0.69,P<0.01),Vs(FO.77,P<0.01).Conclusi
8、ons:1.DTItocombinecolorDopplerimagingcan
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