Complex Shear Modulus Estimation using Integration of LMS/AHI Algorithm

Luong Quang, Hai and Nguyen Manh, Cuong and Ton That, Long and Tran Duc, Tan (2018) Complex Shear Modulus Estimation using Integration of LMS/AHI Algorithm. International Journal of Advanced Computer Science and Applications (IJACSA), 9 (8). pp. 584-589. ISSN 2156-5570

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Abstract

Elasticity and viscosity of tissues are two important parameters that can be used to investigate the structure of tissues,especially detecting tumors. By using a force excitation, the shear wave speed is acquired to extract its amplitude and phase. This information is then used directly or indirectly to compute the Complex Shear Modulus (CSM consists of elasticity and viscosity). Among these methods, Algebraic Helmholtz Inversion (AHI) algorithm can be combined with the Finite Difference Time Domain (FDTD) model to estimate CSM effectively. However, this algorithm is strongly affected by measured noise while acquiring the particle velocity. Thus, we proposed a LMS/AHI algorithm which can estimate correctly CSM. A simulation scenario is built to confirm the performance of the proposed LMS/AHI algorithm with average error of 3:14%.

Item Type:	Article
Subjects:	Electronics and Communications > Electronics and Computer Engineering ISI-indexed journals
Divisions:	Faculty of Electronics and Telecommunications (FET)
Depositing User:	Assoc/Prof Duc Tan Tran
Date Deposited:	07 Sep 2018 05:19
Last Modified:	07 Sep 2018 05:19
URI:	http://eprints.uet.vnu.edu.vn/eprints/id/eprint/3050

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