Various stress tests can be achieved by simply adjusting the crest factor, an indicator of signal quality using peak-to-peak and root mean square voltages.
各种不同的压力测试可通过简单地校准波形因素而实现，或是利用波峰到波峰的变化显示信号质量的指示器，底部表示为方形电压。
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。
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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