实时三维超声心动图测量左室重构患者左室容积评价

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1、【摘要】目的：评价实时三维超声心动图(RT3DE)测量左室重构患者左室容积的准确性。方法：对17例健康体检者和15例左室重构患者，应用实时三维超声诊断仪采集心尖长轴左室全容积图，脱机后应用容积分析软件测量左室舒张末期容积(LVEDV)，同时应用常规二维超声心动图Simpson′s法和M型超声心动图法测量LVEDV。测值分别与多层螺旋CT(MSCT)结果进行对照分析。结果：正常组：LVEDV测值：RT3DE法、Simpson′s法及M型法与MSCT之间的相关性r分别为0.938、0.854、0.760(P均<0.05);

2、左室重构组：LVEDV测值：RT3DE法、Simpson′s法及M型法与MSCT之间的相关性r分别为0.892、0.795、0.716(P均<0.05)。RT3DE法与MSCT测值差显著小于Simpson′s法及M型法(P<0.05)与MSCT的测值差.同一观察者及两位观察者间RT3D测量LVEDV的差异无显著性，且具有高度的可重复性(P<0.05)。结论：实时三维超声心动图可以准确测量左室重构患者的左室容积，其准确性要高于传统超声心动图，可重复性好。【关键词】超声心动描记术;心室重构;心脏容量Evaluationof

3、accuracyofrealtimethreedimensionalechocardiographyinquantifyingleftventricularvolumeinpatientswithleftventricularremolding/DENGBinhua，SHIWeiyuan，DONGNengbin，ZHANGYi，ZHANGXiaohong//DepartmentofUltrasonography，TheFirstPeople′sHospitalofChenzhou，Chenzhou，Hunan，

4、423000，China　　Abstract：Objective:Toassesstheaccuracyofrealtimethreedimensionalechocardiography(RT3DE)inquantifyingleftventricularvolumeinpatientswithleftventricularremolding.Methods:RT3DEwasperformedin17normalsubjects(normalgroup)and15patientswithleftventricular

5、remolding(leftventricularremoldinggroup).Theleftventricularend-diastolicvolume(LVEDV)wasmeasuredofflineusinganalysissoftware，bytwodimensionalSimpson′smethodandM-modemethod.ThevaluesofLVEDVwerecomparedwithMultislicecomputedtomography(MSCT)respectively.Results:

6、LVEDVmeasuredbyRT3DE，Simpson′smethodandM-modemethodswasbothcorrelatedwellwithMSCTinnormalsubjectsgroupandleftventricularremoldinggroup(normalsubjectsgroup:r=0.938、0.854、0.760;leftventricularremoldinggroup:r=0.892、0.795、0.716),P<0.05all.ThedifferencebetweenRT3DEa

7、mdMSCTwaslessthanthatofmongSimpson′s,MmodemethodsandMSCT(P<0.05).ForexaminationofLVEDVbyRT3DE,therewasnodifferencebetweentwoexaminationsofoneobserverandtwoobserversintwogroups(P>0.05).Conclusion:RT3DEcanaccuratelymeasureleftventricularvolumeinnormalandleftventr

8、icularremoldingpatients.TheaccuracyofRT3DEishigherthanthatoftraditionalechocardiographyanditsrepeatabilityisexcellent.　　Keywords：Echocardiography;Ventricularremolding