APICAL TWO-DIMENSIONAL ECHOCARDIOGRAPHY - NORMAL VALUES FOR SINGLE-PLANE AND BI-PLANE DETERMINATION OF LEFT-VENTRICULAR VOLUME AND EJECTION FRACTION
APICAL TWO-DIMENSIONAL ECHOCARDIOGRAPHY - NORMAL VALUES FOR SINGLE-PLANE AND BI-PLANE DETERMINATION OF LEFT-VENTRICULAR VOLUME AND EJECTION FRACTION
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DOI：
10.1055/s-2008-1070223
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发表时间：
1982-01-01
影响因子：
0.6
通讯作者：
EFFERT, S
中科院分区：
文献类型：
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作者：
ERBEL, R;SCHWEIZER, P;EFFERT, S
在测定左心室容积和射血分数方面，电影心室造影和二维超声心动图之间存在差异。前者所获得的正常值不能用于后者。因此，作者确定了自己的正常值。心尖二维超声心动图用于正常组（35名男性，平均年龄30.2岁; 20名女性，平均年龄26.2岁）。除平均值和标准差外，还计算了单侧容许限（T），将90%的总组的正常范围与异常范围在95%置信限内分开。男性的舒张末期和收缩末期容积指数为66.8+/-8.8 ml/m2，而双平面评价为26.9+/-5.2 ml/m2。计算的容许限度分别为82.0和35.9 ml/m2。每搏输出量指数为39.9+/-7.0 ml/m2，T= 27.8 ml/m2，射血分数为59.2+/-6.0%，T= 48.8%。女性的舒张末期和收缩末期容积指数平均值分别为60.7+/-12.5 ml/m2，T= 85.0 ml/m2和25.7+/-7.4 ml/m2，T= 40.1 ml/m2。每搏输出量指数为56.5 ± 10.6 ml/m2，T= 35.9 ml/m2，射血分数为58.1 ± 6.5%，T= 45.5%。心尖二维超声心动图的单平面和双平面测量之间无显著差异。左心室容积和射血分数的正常值，确定从心尖四腔和RAO等效削减使其有可能分类的心脏功能，并提供进一步研究的敏感性和特异性的方法的基础。
A difference was obtained between cineventriculography and 2-D echocardiography in the determination of left ventricular volume and ejection fraction. Normal values obtained by the former could not be used for the latter. The authors, therefore, determined their own normal values. Apical 2-D echocardiography was used for the normal group (35 males, mean age 30.2 years; 20 females, mean age 26.2 years). In addition to mean values and standard deviations, one-sided tolerance limits (T) were calculated, separating the normal range from abnormal within 95% confidence limits for 90% of the total group. End-diastolic and end-systolic volume index in males was 66.8+/-8.8 ml/m2 compared with 26.9+/-5.2 ml/m2 on biplane evaluation. Tolerance limits were calculated at 82.0 and 35.9 ml/m2, respectively. Stroke volume index was 39.9+/-7.0 ml/m2, T= 27.8 ml/m2, ejection fraction 59.2+/-6.0%, T= 48.8%. End-diastolic and-systolic volume index for females had a mean of 60.7+/-12.5 ml/m2, T= 85.0 ml/m2, and 25.7+/-7.4 ml/m2, T= 40.1 ml/m2, respectively. Stroke volume index was 56.5+/-10.6 ml/m2, T= 35.9 ml/m2, the ejection fraction 58.1+/-6.5%, T= 45.5%. Between monoplane and biplane measurements of apical 2-D echocardiograms there was no significant difference. Normal values for volume and ejection fraction of the left ventricle, determined from apical four-chamber and RAO-equivalent cuts make it possible to categorize the function of the heart and to provide the basis for further studies of the sensitivity and specificity of the method.