【摘要】 目的:提供我国各年龄组小儿超声心动图参数和心功能指标的正常参考值。方法:将1344名正常小儿按年龄分10组,使用HPCSonos2500、HPCSonos5500或PhilipsCSonos7500多功能超声诊断仪,测量心血管腔径、各瓣口多普勒血流速度等常用超声心动图参数,并计算常用心功能指标,数据经SPSS11.0统计软件处理,计算x±s,并计算各指标与年龄的相关系数。结果:在各项参数和指标中,二尖瓣口血流E峰流速(MVE)、二尖瓣口血流E峰和A峰流速比值(MVECMVA)、肺动脉瓣口流速(PAV)、左室后壁增厚率(△D%)等指标与年龄无关;而二尖瓣口血流A峰流速(MVA)、三尖瓣口血流A峰流速(TVA)、心率(HR)、左室短轴缩短分数(FS)、射血分数(EF)与年龄呈负相关;其余参数如主动脉内径(AOD)、左心房内径(LAD)、左室舒张末期内径(LVDd)、左室收缩末期内径(LVDs)、主肺动脉内径(MPA)、每搏量(SV)、心输出量(CO)、左室舒张末期容积(LVEDV)、左室收缩末期容积(LVESV)、室间隔厚度(IVS)、左室后壁舒张末期厚度(LVPWd)、左室后壁收缩末期厚度(LVPWs)、三尖瓣口血流E峰流速(TVE)、三尖瓣口血流E峰和A峰流速比值(TVECTVA)、主动脉瓣口流速(AOV)则均与年龄呈正相关。3岁以上健康儿童在AOD、LAD、LVDd、LVDs、MPA、SV、CO、LVEDV、LVESV等心血管结构相关的测值上已经存在性别差异,女性测值小于男性,而心功能指标FS、EF性别之间差异无显著性。结论:小儿超声心动图各参数测值随年龄增长而变化,但有些指标与年龄无关,在实际应用时应加以注意,才能得出正确结论。更多还原

【Abstract】 Objective: To investigate the measurements of echocardiography in healthy children. Methods: One thousand three hundred and forty-four healthy children were divided into ten groups by age. Parameters including dimension of cardiac chambers and great vessels, left ventricular function and flow velocity through different valves were measured with HP/Sonos2500, HP/Sonos5500 or Philips/Sonos7500 ultrasound diagnostic systems. The data was analyzed by SPSS 11.0 software. Data were expressed as x±s. The Pearson correlation analysis was performed to determine the correlation between all measurements and age. Results: No correlations were observed between MVE, MVE/MVA, PAV, △D% and age. MVA, TVA, HR, FS, EF were inversely correlated with age. Other measurements including AOD, LAD, LVDd, LVDs, MPA, IVS, LVPWd, LVPWs, SV, CO, LVEDV, LVESV, TVE, TVE/TVA and AOV correlated positively with age. The measurements of cardiac and great vessels were significantly different between boys and girls above three-year-old children. The measurements of girls were slightly lower than those of boys. However, no differences were found in parameters of left ventricular function such as FS and EF between boys and girls. Conclusion: Measurements of echocardiography change in different age of children. But it should be noted that some parameters may not be affected by age.更多还原