TY - GEN
T1 - Iterative Sound Speed Tomography for Distributed Aberration Correction
AU - Ali, Rehman
AU - Mitcham, Trevor
AU - Singh, Melanie
AU - Bouchard, Richard
AU - Doyley, Marvin
AU - Dahl, Jeremy
AU - Duric, Nebojsa
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In pulse-echo ultrasound imaging, there exists a strong duality between sound speed estimation and aberration correction. This has led to the development of closed-loop iterative frameworks that address both estimation and correction simultaneously. This work revisits previous work on wave-equation migration velocity analysis (WEMVA) to derive and explain our new closed-loop solution to the problem based on a waveform inversion-style approach: full-waveform iterative model-based phase aberration computed tomography (Full-Waveform IMPACT). Full-Waveform IMPACT reproduces the same velocity-depth ambiguities that many previous works have described. However, by approaching the problem using a waveform inversion-style method, we demonstrate that the velocity-depth ambiguity is intricately tied to the problem of cycle skipping and false local minima.
AB - In pulse-echo ultrasound imaging, there exists a strong duality between sound speed estimation and aberration correction. This has led to the development of closed-loop iterative frameworks that address both estimation and correction simultaneously. This work revisits previous work on wave-equation migration velocity analysis (WEMVA) to derive and explain our new closed-loop solution to the problem based on a waveform inversion-style approach: full-waveform iterative model-based phase aberration computed tomography (Full-Waveform IMPACT). Full-Waveform IMPACT reproduces the same velocity-depth ambiguities that many previous works have described. However, by approaching the problem using a waveform inversion-style method, we demonstrate that the velocity-depth ambiguity is intricately tied to the problem of cycle skipping and false local minima.
KW - Adjoint-State Method
KW - Full Waveform Inversion
KW - Medical Pulse-Echo Ultrasound Imaging
KW - Wave-Equation Migration Velocity Analysis
UR - http://www.scopus.com/inward/record.url?scp=85178602359&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85178602359&partnerID=8YFLogxK
U2 - 10.1109/IUS51837.2023.10306695
DO - 10.1109/IUS51837.2023.10306695
M3 - Conference contribution
AN - SCOPUS:85178602359
T3 - IEEE International Ultrasonics Symposium, IUS
BT - IUS 2023 - IEEE International Ultrasonics Symposium, Proceedings
PB - IEEE Computer Society
T2 - 2023 IEEE International Ultrasonics Symposium, IUS 2023
Y2 - 3 September 2023 through 8 September 2023
ER -