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Journal Articles Computer Methods and Programs in Biomedicine Year : 2022

SIMUS: An open-source simulator for medical ultrasound imaging. Part II: Comparison with four simulators

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Abstract

Background and Objective: Computational ultrasound imaging has become a well-established methodology in the ultrasound community. In the accompanying paper (part I), we described a new ultrasound simulator (SIMUS) for MATLAB, which belongs to the Matlab UltraSound Toolbox (MUST). SIMUS can generate pressure fields and radiofrequency RF signals for simulations in medical ultrasound imaging. It works in a harmonic domain and uses far-field and paraxial linear equations. Methods: In this article (part II), we illustrate how SIMUS compares with other ultrasound simulators (Field II, k-Wave, FOCUS, and Verasonics) for a homogeneous medium. We designed different transmit sequences (focused, planar, and diverging wavefronts) and calculated the corresponding 2-D and 3-D (with elevation focusing) RMS pressure fields. Results: SIMUS produced pressure fields similar to those of Field II, FOCUS, and k-Wave. The acoustic fields provided by the Verasonics simulator were significantly different from those of SIMUS and k-Wave, although the overall appearance remained consistent. Conclusion: Our simulations tend to demonstrate that SIMUS is reliable and can be used for realistic medical ultrasound simulations.
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Dates and versions

hal-03702798 , version 1 (28-06-2022)

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Amanda Cigier, François Varray, Damien Garcia. SIMUS: An open-source simulator for medical ultrasound imaging. Part II: Comparison with four simulators. Computer Methods and Programs in Biomedicine, 2022, 220, pp.106726. ⟨10.1016/j.cmpb.2022.106774⟩. ⟨hal-03702798⟩
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