Tissue Viscoelasticity Imaging Using Vibration and Ultrasound Coupler Gel
Tissue Viscoelasticity Imaging Using Vibration and Ultrasound Coupler Gel
复制标题
使用振动和超声耦合凝胶进行组织粘弹性成像
DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
T. Shiina
中科院分区:
文献类型:
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作者:
M. Yamakawa;T. Shiina
In tissue diagnosis, both elasticity and viscosity are important indexes. Therefore, we propose a method for evaluating tissue viscoelasticity by applying vibration that is usually performed in elastography and using an ultrasound coupler gel with known viscoelasticity. In this method, we use three viscoelasticity parameters based on the coupler strain and tissue strain: the strain ratio as an elasticity parameter, and the phase difference and the normalized hysteresis loop area as viscosity parameters. In the agar phantom experiment, using these viscoelasticity parameters, we were able to estimate the viscoelasticity distribution of the phantom. In particular, the strain ratio and the phase difference were robust to strain estimation error.
影响因子:
3.8
作者:
Sridhar, Mallika;Insana, Michael F.
通讯作者:
Insana, Michael F.
影响因子:
4.8
作者:
Qiu, Yupeng;Sridhar, Mallika;Tsou, Jean K.;Lindfors, Karen K.;Insana, Michael F.
通讯作者:
Insana, Michael F.