Ultrasound-assisted gene delivery is associated with the parameters of ultrasound exposure, such as mechanical index, pulserepetition frequency, time of exposure, and so on.
超声的此种特性,与超声的照射条件,如机械指数、脉冲重复频率、照射时间等有关。
2
So, the modulation of irregular pulserepetition interval may be employed in FCP that the randomization of signal modulation would be obtained in both time and frequency domains.
因此,若将重复周期参差调制方式融合到频率编码信号中,可使信号具备时-频调制双重随机性。
3
Next, it introduces the extraction method of the time-domain parameters such as pulse width, pulse repetition rate and pulse range.