交叉结构超声仿组织模体声速测量方法

Cross Structured Measurement Method of Sound Velocity of Ultrasound Tissue Mimicking Phantom

针对超声仿组织模体内部材料的声速测量问题,提出一种十字交叉结构的双探头发射接收声速测量方法。首先将超声脉冲发射接收仪的高压脉冲信号一分为二,同时驱动2个交叉分布的超声换能器,并在接收端通过2个接收换能器接收透射时间差;然后测得模体的长短边距离,计算得到材料的声速;最后通过搭建测量系统与验证实验。结果表明,该方法可提高声速测量的准确性与实用性。

Aiming at the problem of measuring the sound velocity of the material inside the Tissue-mimicking phantom,a new method of measuring the sound velocity of the material by two-probe emission and reception with cross structure is proposed.By dividing the high-voltage pulse signal of the ultrasonic pulse emitter into two parts,and drive two cross-distributed ultrasonic transducers at the same time.The transmission time is received through two receiving transducers at the receiving end.The sound velocity of the material is calculated by measuring the long and short side distance of the module.The measurement system and validation experiments show that the method can improve the accuracy and practicability of sound velocity measurement.