Development of Less Computational Costly Ultrasound Imaging Using the Finite Element Method
Development of Less Computational Costly Ultrasound Imaging Using the Finite Element Method |
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| © 2024 by IJETT Journal | ||
| Volume-72 Issue-5 |
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| Year of Publication : 2024 | ||
| Author : Ahamed- Al- Arifin, S.M. Baque Billah, Kazi Muhammad Asif Ashrafi |
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| DOI : 10.14445/22315381/IJETT-V72I5P131 | ||
How to Cite?
Ahamed- Al- Arifin, S.M. Baque Billah, Kazi Muhammad Asif Ashrafi, "Development of Less Computational Costly Ultrasound Imaging Using the Finite Element Method," International Journal of Engineering Trends and Technology, vol. 72, no. 5, pp. 299-312, 2024. Crossref, https://doi.org/10.14445/22315381/IJETT-V72I5P131
Abstract
Elastography or strain imaging using ultrasound has been found to be useful for determining malignant tissue via state-of-the-art medical imaging. The strain is subjected to tissue displacement measurements. Most of the algorithms that are used to find tissue displacement via elastography are one-dimensional and direct strain imaging techniques are also computationally costly. To overcome these problems, this paper introduces a 2-D cross-correlation algorithm to compute the time delay in two directions and the workflow of the strain imaging has been modified to reduce the computation cost of imaging. The MATLAB tic toc function is used to determine the simulation time of each step of the modified workflow. To accomplish this work, a synthetic two-dimensional tissue-mimicking phantom was made by using the finite element-based software ANSYS. To obtain the radio frequency (RF) signal, different simulations were performed in the ultrasound simulation software FIELD II. The cross-correlation coefficient obtained from the ultrasound simulation was mapped using the MATLAB surf tool. The attained map shows an auspicious result in differentiating between benign and malignant tissue. Additionally, the proposed algorithm has a lower computational cost in terms of simulation time, with a value of 222.072322 seconds, in contrast with the simulation time of conventional strain imaging, which has a value of more than 222.093015 seconds. Therefore, by applying the above imaging algorithm and procedure to a real-world 3-D scenario, we may develop a more sophisticated imaging technique that is less computationally costly.
Keywords
Ultrasound, Elastography, FEM, 2D cross-correlation, Surf tool.
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