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Objective To investigated the nursing of second harmonic myocardial imaging.

目的超声二次谐波心肌造影的护理配合.

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Operation principle of fluxgate magnetometer is simplify described.

简述了二次谐波法磁通门磁强计的工作原理.

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Objective To assess the perfusion of acute myocardial ischemia with ultrasound agent by intermittent harmonic imaging.

目的采用二次谐波触发显像超声造影评价急性缺血心肌血流灌注.

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Purpose: This study is to evaluate microbubble based ultrasonic contrast agent and harmonic imaging on tumor.

目的: 探讨微气泡型声学造影剂及二次谐波成像在肝癌中的应用特点.

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