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。
2
Objective to analyze the clinical value of peak myocardial velocity gradient (MVG) as a noninvasive indicator of left ventricular (LV) systolic or diastolic function.