Quantitative imaging of nonlinear shear modulus by combining static elastography and shear wave elastography

Latorre-Ossa H.

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Quantitative imaging of nonlinear shear modulus by combining static elastography and shear wave elastography

机译：静态弹性成像与剪切波弹性成像相结合的非线性剪切模量定量成像

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The study of new tissue mechanical properties such as shear nonlinearity could lead to better tissue characterization and clinical diagnosis. This work proposes a method combining static elastography and shear wave elastography to derive the nonlinear shear modulus by applying the acoustoelasticity theory in quasi-incompressible soft solids. Results demonstrate that by applying a moderate static stress at the surface of the investigated medium, and by following the quantitative evolution of its shear modulus, it is possible to accurately and quantitatively recover the local Landau (A) coefficient characterizing the shear nonlinearity of soft tissues.

机译：对新的组织力学性质（例如剪切非线性）的研究可能会导致更好的组织表征和临床诊断。这项工作提出了一种方法，它利用静态弹性成像和剪切波弹性成像相结合的方法，通过在拟不可压缩的软固体中应用声弹性理论得出非线性剪切模量。结果表明，通过在被研究介质的表面施加适度的静应力，并遵循其剪切模量的定量演变，可以准确，定量地恢复表征软组织剪切非线性的局部Landau（A）系数。。

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《Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on》 |2012年第4期|p.833-839|共7页
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Latorre-Ossa H.;
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Quantitative imaging of nonlinear shear modulus by combining static elastography and shear wave elastography

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