Sun K
Department of Pediatric Cardiology, Xinhua Hospital, Shanghai Second Medical University.
Zhonghua Yi Xue Za Zhi. 1993 Sep;73(9):535-7, 574-5.
The accuracy and reliability of two-dimensional echocardiographic length method in right ventricular volume measurement were assessed by three-dimensional echocardiographic method in 10 normal children, 10 patients with atrial septal defect, and 10 patients with pulmonary stenosis. Their age and sex were matched. Right ventricular end diastolic, end systolic, mid-systolic volume, and ejection fraction evaluated by length method were correlated very well with the values obtained by three-dimensional echocardiographic method in normal and pulmonary stenosis group (r = 0.71-0.95, P < 0.01). In atrial septal defect group, right ventricular volume obtained by the two methods was correlated well (r = 0.86-0.95, P < 0.01). Although the correlation in right ventricular ejection fraction was lower, it was still significant. The shortening rate of X, Y, Z parameters required by length method were similar in each group: delta Z % > delta X % > delta Y %. We conclude that right ventricular volume and function could be assessed accurately by two-dimensional echocardiographic length method in children with right ventricular volume or pressor overloaded, and that right ventricular systolic pattern is similar in those situations.
采用三维超声心动图方法，对10名正常儿童、10名房间隔缺损患者和10名肺动脉狭窄患者二维超声心动图长度法测量右心室容积的准确性和可靠性进行评估。他们的年龄和性别相匹配。正常组和肺动脉狭窄组中，通过长度法评估的右心室舒张末期、收缩末期、收缩中期容积及射血分数与三维超声心动图方法测得的值相关性非常好（r = 0.71 - 0.95，P < 0.01）。在房间隔缺损组中，两种方法测得的右心室容积相关性良好（r = 0.86 - 0.95，P < 0.01）。虽然右心室射血分数的相关性较低，但仍具有显著性。长度法所需的X、Y、Z参数缩短率在各组中相似：ΔZ% > ΔX% > ΔY%。我们得出结论，二维超声心动图长度法可准确评估右心室容积或压力负荷过重儿童的右心室容积和功能，且在这些情况下右心室收缩模式相似。
