Using Coded Excitation to Detect Tissue Vibration in Ultrasonic Elastography
Using Coded Excitation to Detect Tissue Vibration in Ultrasonic Elastography
复制标题
使用编码激励检测超声弹性成像中的组织振动
DOI：
10.1166/jmihi.2017.2009
复制
发表时间：
2017-02
影响因子：
--
通讯作者：
Chen Siping
中科院分区：
文献类型：
--
作者：
He Xiaonian;Diao Xianfen;Lin Haoming;Zhang Xinyu;Chen Xin;Shen Yuanyuan;Qin Zhengdi;Chen Siping
Studying the propagation of shear waves can lead to the discovery of important tissue parameters such as viscoelasticity. It is a challenge to obtain high quality shear waves in very noisy environments, like the deep tissues of obese patients, because the shear wave motion signal is extracted from the ultrasound signal which suffers large attenuation. We investigated the feasibility of implementing coded excitation for shear wave detection, with the hypothesis that coded excitation can improve the ability to detect the high frequency component of the shear wave and increase the penetration. The Barker 7, Barker 13, and short pulse were used for shear wave detection. The primary objective of this work is to demonstrate that the coded excitation can improve the ability to detect the high frequency component of the shear wave. The high frequency component of the shear wave is important for improving the estimation accuracy of viscoelasticity of dispersive tissue. Our second experiment demonstrated that Transient Elastography penetration (TE) can be improved using the coding method. Our results indicate that coding pulse excitation significantly improves the quality of shear wave detection, which has important clinical applications.
