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2017 | OriginalPaper | Chapter

A Frequency Dependent Investigation of Complex Shear Modulus Estimation

Authors : Quang Hai Luong, Manh Cuong Nguyen, Tran Duc Tan

Published in: Advances in Information and Communication Technology

Publisher: Springer International Publishing

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Abstract

Mechanical properties of tissues in terms of elasticity and viscosity provide us useful information which may be used in detecting tumors. Shear wave imaging (SWI) is a new method to quantify tissue elasticity by estimating the parameters of the complex shear modulus (CSM). The shear wave is generated by a vibrating needle at a certain frequency. In fact, CSM is a function of the vibrating frequency. Therefore, in this paper, a frequency dependent investigation of CSM will be carried in order to evaluate the estimation performance. The Extended Kalman Filter (EKF) is designed to estimate the CSM for both homogeneous and heterogeneous mediums. The root mean square (rms) error is used to evaluate the quality of the CSM estimation. Several tests were implemented to determine the range of vibrating frequency should be used for the good estimation.

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Metadata
Title
A Frequency Dependent Investigation of Complex Shear Modulus Estimation
Authors
Quang Hai Luong
Manh Cuong Nguyen
Tran Duc Tan
Copyright Year
2017
Book
Advances in Information and Communication Technology

Print ISBN: 978-3-319-49072-4

Electronic ISBN: 978-3-319-49073-1

Copyright Year: 2017

DOI
https://doi.org/10.1007/978-3-319-49073-1_6

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