Publication Details
Acceleration of Ultrasound Neurostimulation Using Mixed-Precision Arithmetic
Duchoň Radek, Ing.
GPU, Nvidia, CUDA, k-Wave, Acceleration, Ultrasound, Acoustic waves, Neurostimulation, Mixed precision
Ultrasound neurostimulation, a technique that modulates the brain's electrical activity, has emerged as a significant secondary treatment option for cases resistant to pharmacological interventions. The therapy is achievable through the application of a three-dimensional steerable ultrasound, directed by patient-specific stimulation plans. These plans are meticulously crafted through full-wave ultrasound propagation simulations. Nonetheless, the computational intensity required for calculating these plans poses a significant challenge, often reaching the memory capacities of contemporary graphics processing units (GPUs). By representing material properties and k-space operators more efficiently, we achieved a 22% reduction in precision GPU memory usage, while accelerating calculations by 8.5%. This optimization introduced an error that reduced focal pressure by 0.5% without any focus movement, values that are clinically acceptable.
@inproceedings{BUT189462,
author="Jiří {Jaroš} and Radek {Duchoň}",
title="Acceleration of Ultrasound Neurostimulation Using Mixed-Precision Arithmetic",
booktitle="HPDC '24: Proceedings of the 33rd International Symposium on High-Performance Parallel and Distributed Computing",
year="2024",
pages="370--372",
publisher="Association for Computing Machinery",
address="New York",
doi="10.1145/3625549.3658823",
isbn="979-8-4007-0413-0",
url="https://www.fit.vut.cz/research/publication/13194/"
}