Integrating the Multistencil Fast Marching Method in Passive Cavitation Mapping for Tissue with Heterogeneous Speed of Sound Distribution

Huber C, Ullmann I, Lyer S (2025)

Publication Type: Conference contribution

Publication year: 2025

Journal

IEEE International Ultrasonics Symposium Institute of Electrical and Electronics Engineers (IEEE)

Publisher: IEEE Computer Society

Conference Proceedings Title: IEEE International Ultrasonics Symposium, IUS

Event location: Utrecht, NLD NL

ISBN: 9798331523329

DOI: 10.1109/IUS62464.2025.11201427

Abstract

Passive cavitation mapping (PCM) is widely used to localize ultrasound-induced cavitation but typically assumes a homogeneous speed of sound (SoS), an assumption often violated in biological tissue. We integrate the Multistencil Fast Marching Method (MSFMM), an accurate Eikonal solver, into PCM to account for arbitrary, spatially varying SoS. For each array element, MSFMM precomputes travel-time maps that are then used as time delays in time-domain PCM or as phase offsets in frequency-domain PCM, enabling use with common beamformers. We benchmark this FMM-PCM against the heterogeneous Angular Spectrum Method (HASM) using in-silico experiments: a single cavitation source is simulated with a cavitation signal model based on Vokurka's formulation, across three SoS scenarios - homogeneous, a layered medium with a high-SoS barrier, and a fully heterogeneous map. In the homogeneous case, FMM-PCM and standard PCM yield indistinguishable reconstructions, validating the integration. In layered and fully heterogeneous media, conventional PCM exhibits source mislocalization and elevated artifacts, whereas FMM-PCM consistently restores the true source position and suppresses aberration-induced errors; HASM improves over standard ASM but remains less accurate than FMM-PCM. These results indicate that embedding MSFMM into PCM provides accurate aberration correction for cavitation imaging in heterogeneous tissue.

Authors with CRIS profile

Christian Huber Department of Otorhinolaryngology – Head and Neck Surgery (HNO-Klinik) Ingrid Ullmann Lehrstuhl für Hochfrequenztechnik (LHFT) Stefan Lyer Professur für KI-gesteuerte Nanomaterialien

How to cite

APA:

Huber, C., Ullmann, I., & Lyer, S. (2025). Integrating the Multistencil Fast Marching Method in Passive Cavitation Mapping for Tissue with Heterogeneous Speed of Sound Distribution. In IEEE International Ultrasonics Symposium, IUS. Utrecht, NLD, NL: IEEE Computer Society.

MLA:

Huber, Christian, Ingrid Ullmann, and Stefan Lyer. "Integrating the Multistencil Fast Marching Method in Passive Cavitation Mapping for Tissue with Heterogeneous Speed of Sound Distribution." Proceedings of the 2025 IEEE International Ultrasonics Symposium, IUS 2025, Utrecht, NLD IEEE Computer Society, 2025.

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