title: Three-dimensional photoacoustic tomography based on graphics-processing-unit-accelerated finite element method.
abstract: Compared with commonly used analytical reconstruction methods, the frequency-domain finite element method (FEM) based approach has proven to be an accurate and flexible algorithm for photoacoustic tomography. However, the FEM-based algorithm is computationally demanding, especially for three-dimensional cases. To enhance the algorithm's efficiency, in this work a parallel computational strategy is implemented in the framework of the FEM-based reconstruction algorithm using a graphic-processing-unit parallel frame named the "compute unified device architecture." A series of simulation experiments is carried out to test the accuracy and accelerating effect of the improved method. The results obtained indicate that the parallel calculation does not change the accuracy of the reconstruction algorithm, while its computational cost is significantly reduced by a factor of 38.9 with a GTX 580 graphics card using the improved method.
authors: Kuan
authors: K
authors: Peng
authors: Ling
authors: L
authors: He
authors: Ziqiang
authors: Z
authors: Zhu
authors: Jingtian
authors: J
authors: Tang
authors: Jiaying
authors: J
authors: Xiao
mesh_terms: D000465:Algorithms; D003196:Computer Graphics; D004867:Equipment Design; D019544:Equipment Failure Analysis; D020342:Finite Element Analysis; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation; D021621:Imaging, Three-Dimensional / Q000295:instrumentation* / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods; D061088:Photoacoustic Techniques / Q000295:instrumentation* / Q000379:methods*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*