实时三维超声心动图在小儿法洛四联症术前右心室收缩功能的评价应用

摘要

目的：观察实时三维超声心动图检测小儿法洛四联症（TOF）术前右心室收缩功能情况，并评估其临床应用价值。方法选取2013年1～12月收治的TOF患儿20例作为观察组研究对象，在术前实施RT-3DE与二维超声检测，对比观察两种超声检测的临床效果；另选择同期的20例正常健康体检儿童作为对照组，对比观察TOF患儿术前右心室收缩功能改变情况。结果观察组患儿术前右心室收缩/舒张末期容积、射血分数及每搏量等临床指标水平与对照组有明显差异，而对观察组患儿的两种超声检测结果亦有明显差异，差异均有统计学意义（P＜0.05）。结论 TOF患儿术前右心室收缩功能会出现明显变化，而RT-3DE检测能够通过右心室容积、射血分数等指标对其收缩功能进行有效评估，相比二维超声具有更为理想的临床检测效果与应用价值。%Objective To observe real-time three-dimensional echocardiography(RT-3DE) in testing systolic function of right ventricle before the surgery of tetralogy of Fallot(TOF) for children patients,and to evaluate its clinical value. Methods 20 children patients with TOF who were admitted to our hospital from January 2013 to December 2013 were selected as research subjects in an observation group.They received RT-3DE and two-dimensional ultrasonography before the surgery.Clinical effects of the two kinds of ultrasonography were observed and compared;20 healthy children during the same period were selected as a control group.Changes of systolic function of right ventricle for children patients with TOF were observed and compared. Results Clinical indices such as end-systolic/diastolic volume of right ventricle,ejection fraction and stroke volume for children patients before the surgery in the observation group were significantly different from those in the control group,and results of the two kinds of ultrasonography for children patients in the observation group were also significantly different(P < 0.05).All the differences were statistically significant. Conclusion Systolic function of right ventricle for children patients with TOF before the surgery shows significant changes,and RT-3DE is able to evaluate the systolic function effectively via several indices like right ventricular volume and ejection fraction.This method has a more favorable clinical effect and application value than two-dimensional ultrasonography.