OBJECTIVE: to study the value of Xstrain technology in the evaluation of cardiac function in children with tonsil adenoidal hypertrophy.
目的：探讨心肌矢量应变技术在检测扁桃体腺样体肥大患儿心脏功能方面的应用价值。
With the improvement of ultraphonic instruments and software, new echocardiographic techniques provide effective tools for evaluation of cardiac function.
随着超声仪器的改进及相应软件的研发，不断涌现的超声新技术为心功能的评价提供了有效的技术工具。
In order to be safe on the one hand and effective on the other, it is necessary to make an evaluation of cardiac function of the patient before exercise and formulate a personal plan of exercise.
为了保证患者的安全和取得疗效，对每一患者都应作出心功能评定，并制定一个锻炼方案。
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