For gradient ramp duration of less than a few milliseconds, mean peripheral nerve stimulation is a safe indicator of high dB /dt .

当梯度上升时间只有数毫秒时，外周神经兴奋是梯度场安全的上限指标。

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Objective to analyze the clinical value of peak myocardial velocity gradient (MVG) as a noninvasive indicator of left ventricular (LV) systolic or diastolic function.

目的探讨心肌速率阶差m VG评价左室舒缩功能的价值。

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