Comprehensive experimental assessments of rheological models' performance in elastography of soft tissues.
Comprehensive experimental assessments of rheological models' performance in elastography of soft tissues.
复制标题
软组织弹性成像中流变模型性能的综合实验评估。
DOI：
10.1016/j.actbio.2022.04.047
复制
发表时间：
2022-07-01
影响因子：
9.7
通讯作者：
Parker, Kevin J.
中科院分区：
文献类型：
--
作者：
Poul, Sedigheh S.;Ormachea, Juvenal;Ge, Gary R.;Parker, Kevin J.
关键词：
在过去的三十年里，弹性成像研究人员利用几种流变模型来表征软组织粘弹性。由于粘弹性参数的频率依赖性行为以及软组织的各种研究中采用的不同技术和频率，流变模型具有通过明确的数学表示来标准化不同技术的价值。然而，重要的问题仍然是：在理论框架内，应考虑广泛采用几种可用模型中的哪一种？我们通过评估三个完善的流变学模型来表征离体牛肝组织的性能来解决这个问题：Kelvin-Voigt（KV）模型作为2参数模型，标准线性固体（SLS）和Kelvin-Voigt分数导数（KVFD）模型作为3参数模型。评估基于时域行为（使用应力松弛测试）和频域行为（通过测量剪切波速度（SWS）分散）的分析。使用三种不同的测试在IHz至IkHz的宽频率范围内测量SWS：（i）使用流变仪的谐波剪切测试，（ii）混响剪切波（RSW）超声弹性成像扫描，以及（iii）RSW光学相干弹性成像扫描，其中每种测试针对不同的频率范围。我们的研究结果表明，KVFD模型产生的时间和频率域数据的肝脏的唯一相互一致的渲染。此外，它简化为肝脏的2参数模型（对应于SWS分散的2参数“弹簧罐”或幂律模型），并在时间（>98%准确度）和频率（>96%准确度）域中提供材料粘弹性行为的最准确预测。
Elastography researchers have utilized several rheological models to characterize soft tissue viscoelasticity over the past thirty years. Due to the frequency-dependent behavior of viscoelastic parameters as well as the different techniques and frequencies employed in various studies of soft tissues, rheological models have value in standardizing disparate techniques via explicit mathematical representations. However, the important question remains: which of the several available models should be considered for widespread adoption within a theoretical framework? We address this by evaluating the performance of three well established rheological models to characterize ex vivo bovine liver tissues: the Kelvin-Voigt (KV) model as a 2-parameter model, the standard linear solid (SLS) and the Kelvin-Voigt fractional derivative (KVFD) models as 3-parameter models. The assessments were based on the analysis of time domain behavior (using stress relaxation tests) and frequency domain behavior (by measuring shear wave speed (SWS) dispersion). SWS was measured over a wide range of frequency from 1 Hz to 1 kHz using three different tests: (i) harmonic shear tests using a rheometer, (ii) reverberant shear wave (RSW) ultrasound elastography scans, and (iii) RSW optical coherence elastography scans, with each test targeting a distinct frequency range. Our results demonstrated that the KVFD model produces the only mutually consistent rendering of time and frequency domains data for liver. Furthermore, it reduces to a 2-parameter model for liver (correspondingly to a 2-parameter “spring-pot” or power-law model for SWS dispersion) and provides the most accurate predictions of the material viscoelastic behavior in time (>98% accuracy) and frequency (>96% accuracy) domains.
登录
查看更多内容
DOI：
10.1016/j.jmbbm.2019.07.010
发表时间：
2019-11-01
影响因子：
3.9
作者：
Arnabili, Marco;Balasubramanian, Prabakaran;Breslaysky, Ivan
通讯作者：
Breslaysky, Ivan
DOI：
10.1109/tuffc.2016.2634329
发表时间：
2017-03-01
影响因子：
3.6
作者：
Bernard, Simon;Kazemirad, Siavash;Cloutier, Guy
通讯作者：
Cloutier, Guy
影响因子：
19.7
作者：
Barr, Richard G.;Ferraioli, Giovanna;Levine, Deborah
通讯作者：
Levine, Deborah
DOI：
10.1016/j.ijsolstr.2015.04.018
发表时间：
2015-08-15
影响因子：
3.6
作者：
Jalocha, D.;Constantinescu, A.;Neviere, R.
通讯作者：
Neviere, R.
DOI：
10.1109/58.393111
发表时间：
1995-07-01
影响因子：
3.6
作者：
LOUPAS, T;PETERSON, RB;GILL, RW
通讯作者：
GILL, RW