Shear wave dispersion behaviors of soft, vascularized tissues from the microchannel flow model

Parker K. J.; Ormachea J.; McAleavey S. A.; Wood R. W.; Carroll-Nellenback J. J.; Miller R. K.

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Shear wave dispersion behaviors of soft, vascularized tissues from the microchannel flow model

机译：从微通道流模型看，软化血管组织的剪切波弥散行为

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The frequency dependent behavior of tissue stiffness and the dispersion of shear waves in tissue can be measured in a number of ways, using integrated imaging systems. The microchannel flow model, which considers the effects of fluid flow in the branching vasculature and microchannels of soft tissues, makes specific predictions about the nature of dispersion. In this paper we introduce a more general form of the 4 parameter equation for stress relaxation based on the microchannel flow model, and then derive the general frequency domain equation for the complex modulus. Dispersion measurements in liver (ex vivo) and whole perfused placenta (post-delivery) correspond to the predictions from theory, guided by independent stress relaxation measurements and consideration of the vascular tree structure.

机译：可以使用集成成像系统以多种方式来测量组织刚度和剪切波在组织中的频率相关行为。微通道流动模型考虑了分支血管系统和软组织微通道中流体流动的影响，对分散的性质做出了具体的预测。在本文中，我们介绍了一种基于微通道流动模型的应力松弛4参数方程的更通用形式，然后推导了复模量的通用频域方程。在肝脏（离体）和整个灌注的胎盘（分娩后）中的分散度测量结果符合理论上的预测，并以独立的应力松弛测量结果和对血管树结构的考虑为指导。

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《Physics in medicine and biology.》 |2016年第13期|共14页
作者
Parker K. J.; Ormachea J.; McAleavey S. A.; Wood R. W.; Carroll-Nellenback J. J.; Miller R. K.;
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正文语种 eng
中图分类 R35;
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shear waves; elastography; dispersion; rheological models; tissue characterization;

机译：剪切波弹性成像分散流变模型组织表征;

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1. Shear wave dispersion behaviors of soft, vascularized tissues from the microchannel flow model [J] . Parker K. J., Ormachea J., McAleavey S. A., Physics in medicine and biology. . 2016,第13期

机译：从微通道流模型看，软化血管组织的剪切波弥散行为
2. Shear Wave Dispersion Ultrasound Vibrometry Based on a Different Mechanical Model for Soft Tissue Characterization [J] . Chen Ke, Yao Aiping, Zheng Eugene E., Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine . 2012,第12期

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3. Monodomain shear wave propagation and bidomain shear wave dispersion in an elastic model of cardiac tissue [J] . Steffan Puwal, Bradley J. Roth PHYSICAL REVIEW E . 2013,第2期

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机译：利用肝纤维化进展和组织学模型评估由纤维结构和组织粘度引起的剪切波弥散
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机译：单畴剪切波传播和bidomain剪切波分散在心脏组织中的弹性模型
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机译：用于湍流自由剪切流动的波浪模型

Shear wave dispersion behaviors of soft, vascularized tissues from the microchannel flow model

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