超声波频率功率和血栓消溶率的关系

The relationship between the frequencies,power of the ultrasound,thrombus age and the rate of the thrombolysis

基于超声波原理,观察研究了超声波频率、功率、血栓凝龄与血栓消溶率之间的关系。实验采用3种不同频率的超声波(1MHz,27kHz,20kHz)在不同的超声功率下作用于凝龄不同的血栓。结果表明:血栓发生消溶,且功率一定时,低频超声作用于血栓,消溶率越高;高频超声作用于血栓时,消溶率却较低;当频率一定时,血栓消溶率随着超声功率增加而增大;同时发现随着血栓凝龄的增加,血栓消溶率依次降低。因此,可以肯定,超声波具有溶栓效应,这为利用超声治疗血栓类疾病提供了重要的依据。

The study is based on the principle of the ultrasound to research the relationship between the frequency and powers of the ultrasound,thrombus age and the rate of the thrombolysis.Three different kinds of frequencies(1 MHz,27 kHz,20 kHz),power′s ultrasound are uesd to affect the thrombus.The result shows that the rate of the thrombolysis has a negative correlation with the frequencies,thrombus age while a positive correlation with the power.