超声剪切波弹性成像的技术进展

Technology Progress of Ultrasound Elastography Based on Shear Wave

E成像,又称为实时剪切波弹性成像,该技术是近来兴起的一种实时二维弹性成像技术,它与静态弹性成像技术有本质的区别,与瞬时弹性成像技术以及声辐射力弹性成像技术相比,在技术上也有了新的进展。本文介绍了弹性成像的相关原理,以及现阶段应用于临床的弹性成像技术,并着重探讨了实现E成像快速、实时、大范围检测的技术方法,尤其是在剪切波产生、检测、成像方面采用的技术,如"马赫圆锥"动态的相干增强技术,一次并行发射、接收的超高频成像技术。同时对E成像技术的研究及其临床应用进展做了综述,最后对剪切波弹性成像技术的未来应用进行了展望。

E imaging,also named shear wave elastography(SWE)is a real time elastographytechnology of two-dimensional emerging in recent years.It is not only fundamentally different fromthe static elastography technique,but also different from transient elastography and acoustic radiationforce impulse.A new technology progress has occurred in SWE.In this paper,the related principleof elastography and several elastography technologies in clinical application were introduced,andthe methods of achieving rapid,real-time,and extensive testing of SWE were explored.Meanwhile,emerging and detecting methods of SWE,for example,dynamic coherence enhancement technique basedon“March Wave”and ultra high frequency imaging technology for one transmitting-receiving wererenumbered.Moreover,this paper reviewed the technology researches and clinical applications of SWE,and the future development of SWE was discussed in the end.