摘要
目的 探讨实时三平面超声心动图(RT-3PE)测量心肌梗死患者左心室总体收缩功能的可行性、准确性和重复性。方法 同期应用RT-3PE和二维超声心动图(2DE)双平面Simpson法测量30例心肌梗死患者左心室舒张末期容积(LVEDV)、左心室收缩末期容积(LVESV)和左心室射血分数(LVEF),并与单光子发射计算机断层成像术(SPECT)测值进行对比研究,同期由同一和不同的检查者应用RT-3PE进行重复测量并将测量结果进行比较。结果 (1)RT-3PE和2DESimpson法所测LVEDV分别为(86.67±37.64)、(86.43±38.25)ml,LVESV分别为(42.13±37.42)、(41.06±32.47)ml,SPECT测量的LVEDV和LVESV分别为(108.70±66.27)、(55.90±61.68)ml,RT-3PE和2DESimpson法测得LVEDV和LVESV分别与SPECT比较差异有统计学意义(t=3.63、2.76、3.37、2.54,P均<0.01或0.05);3种方法所测LVEF值之间差异无统计学意义(P>0.05)。(2)RT-3PE测得LVEDV、LVESV和LVEF与SPECT相应的测量值密切相关(r=0.943、0.965、0.816,P均<0.01);2DESimpson法测得LVEDV、LVESV和LVEF与SPECT相应的测量值相关性较好(r=0.896、0.957、0.721,P均<0.01)。Altman-Bland一致性分析显示RT-3PE所测左心室容积和收缩功能与SPECT测值的一致性高于2DESimpson法。(3)同一和不同的检查者采用RT-3PE重复测量结果之间差异无统计学意义(P>0.05),且有良好的相关性,同一检查者采用RT-3PE两次测量LVEDV、LVESV和LVEF的相关性良好(r=0.968、0.984、0.883,P均<0.01);不同检查者采用RT-3PE测量LVEDV、LVESV和LVEF的相关性也很好(r=0.948、0.970、0.899,P均<0.01)。结论 RT-3PE是一种能够快速、准确测量心肌梗死患者左心室总体收缩功能的影像技术。
Objective To investigate the feasibility, accuracy and reproducibility of real-time tri-plane echocardiography （RT-3PE） for measuring the global left ventricular systolic function in patients with myocardial infarction. Methods In the total of 30 patients with myocardial infarction, left ventricular end-diastolic volume （ LVEDV ）, left ventricular end-systolic volume （ LVESV ） and left ventrieular ejection fraction（LVEF） were measured through RT-3PE and two-dimensional eehocardiography （2DE）bi-plane Simpson＇ s method. The measured values were compared with those obtained through SPECT. Intra-and interobserver reliabilities were also assessed for the measurement of RT-3PE. Results （1）The values of LVEDV measured through RT-3PE and 2DE Simpson＇ s method were（86.67± 37.64）ml and （86.43 ±38.25 ）ml respectively,and those of LVESV were（42.13 ± 37.42） ml and（41.06 ± 32.47 ） ml respectively. While the values of LVEDV and LVESV measured by SPECT were （ 108.70 ± 66. 27 ） ml and （ 55.90 ± 61.68 ） ml respectively. There were significant differences between the values measured by SPECT and RT-3PE, and also between those measured by SPECT and 2DE Simpson＇ s method （t = 3.63,2.76,3.37,2.54,P 〈 0.01 or 〈 0. 05 ） ; There was no significant difference among the values of LVEF measured by the three ways. （2）For the measurementof LVEDV, LVESV and LVEF, there was correlation between RT-3PE and SPECT （r respectively：0. 943, 0.965,0. 816, P 〈 0.01 ）, as well as between 2DE Simpson＇s method and SPECT （ r respectively ： 0. 896, 0.957,0. 721 ,P 〈 0.01 ）. Ahman-Bland analysis showed a good consistency between RT-3PE and SPECT in the measurement of left ventricular volume and systolic function. （ 3 ） There was no significant difference between the measurements obtained by the same or different examiners with RT-3PE（ P 〉 0.05 ）, and there was a good correlation for both intra-（ r respectively： 0. 968, 0. 984, 0. 883, P 〈 0. 01 ） and in
出处
《中华医学超声杂志（电子版）》
2012年第2期19-22,共4页
Chinese Journal of Medical Ultrasound(Electronic Edition)
基金
2010年度人力资源和社会保障部留学回国人员科技活动项目[2101412]
关键词
超声心动描记术
三维
单光子发射计算机断层成像术
心肌梗死
心室功能
Echocardiography,three-dimensional
Single photon emission computer tomographic
Myocardial infarction
Ventricular function
