Intrinsic elastography and its dependence on arterial flow volume.
Intrinsic elastography and its dependence on arterial flow volume.
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固有弹性成像及其对动脉血流量的依赖性。
DOI：
10.1109/embc.2015.7319835
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Saijo Y
中科院分区：
文献类型：
--
作者：
Nagaoka R;Kobayashi K;Yoshizawa S;Umemura S;Saijo Y
本文提出了一种新的由动脉搏动引起的形变估计组织刚度的方法。新方法被命名为内在弹性成像（IE）。在两个假设下，即由脉动引起的变形在整个身体中传播，并且传播速度（PV）与组织的力学特性密切相关，IE可以基于PV来评估组织刚度。然而，该方法存在观测到的PV随着流量的变化而变化的问题。在本文中，我们提出了新的估计方法，以估计真正的剪切弹性，尽管变化。并与SWI的结果进行了比较。其结果与SWI的结果几乎一致，或显示出相似的结果。
We propose a new estimation method of tissues stiffness from deformation induced by arterial pulsation. The new method was named Intrinsic Elastography (IE). Under two assumptions that the deformation induced by pulsation propagates throughout the body, and the propagation velocity (PV) is closely related to the mechanical properties of tissues, the IE can evaluate the tissue stiffness based on the PV. However, this method has an issue that the observed PVs change with the changes of amounts of the flow. In this paper, we propose the new estimation method in order to estimate true shear elasticity in spite of the changes. The results was compared to the results of SWI. The results was almost identical to the result of SWI, or showed the similar results.