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A frequency dependent investigation of complex shear modulus estimation

Luong, Quang Hai and Nguyen, Manh Cuong and Tran, Duc Tan (2017) A frequency dependent investigation of complex shear modulus estimation. In: International Conference on Advances in Information and Communication Technology, 12-13, Dec., 2016, Vietnam.

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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.

Item Type: Conference or Workshop Item (Lecture)
Subjects: Electronics and Communications > Electronics and Computer Engineering
Divisions: Faculty of Electronics and Telecommunications (FET)
Depositing User: Assoc/Prof Duc Tan Tran
Date Deposited: 05 Dec 2017 15:03
Last Modified: 10 Jan 2018 07:58

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