Ultrasound simulation on the cell broadband engine using the westervelt equation
Date
2012
Authors
Haigh, Andrew
Treeby, Bradley
McCreath, Eric
Journal Title
Journal ISSN
Volume Title
Publisher
Conference Organising Committee
Abstract
The simulation of realistic medical ultrasound imaging is a computationally intensive task. Although this task may be divided and parallelized, temporal and spatial dependencies make memory bandwidth a bottleneck on performance. In this paper, we report on our implementation of an ultrasound simulator on the Cell Broadband Engine using the Westervelt equation. Our approach divides the simulation region into blocks, and then moves a block along with its surrounding blocks through a number of time steps without storing intermediate pressures to memory. Although this increases the amount of floating point computation, it reduces the bandwidth to memory over the entire simulation which improves overall performance. We also analyse how performance may be improved by restricting the simulation to regions that are affected by the transducer output pulse and that influence the final scattered signal received by the transducer.
Description
Keywords
Keywords: Cell Broadband Engine; Floating-point computation; Intermediate pressures; Medical ultrasound imaging; Memory bandwidths; Output pulse; Parallelizations; Time step; Ultrasound simulation; Westervelt equation; Algorithms; Transducers; Ultrasonic imaging; U Cell Broadband Engine; parallelization; ultrasound simulation; Westervelt equation
Citation
Collections
Source
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Type
Conference paper
Book Title
Entity type
Access Statement
License Rights
Restricted until
2037-12-31
Downloads
File
Description