Original title: Using GPGPU in MR Data Processing
Authors: Mikulka, J. ; Slíž, J. ; Bartušek, Karel
Document type: Papers
Conference/Event: International Interdisciplinary PhD Workshop, Brno (CZ), 20160912
Year: 2016
Language: eng
Abstract: The main tissue parameters targeted by MR tomography include, among others, relaxation times T-1 and T-2. This paper focuses on the computation of the relaxation time T-2 measured with the Spin Echo method. The maxima of measured echoes must be interleaved with an exponential function to compute the T2 relaxation. As this procedure needs to be repeated for each pixel of the scanned tissue, the processing of large images then becomes very intensive. This paper introduces the results provided by accelerated computation based on parallelization and carried out with a graphics card. By using the simple method of linear regression, we obtain a processing time of less than 36 ms. In the case of the Levenberg-Marquardt algorithm, the reconstruction was done in 96 ms. This period is at least 900 times shorter than that achievable with professional software.
Keywords: data processing; GPGPU
Host item entry: International Interdisciplinary PhD Workshop. Proceedings, ISBN 978-80-214-5387-6

Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0298309

Permalink: http://www.nusl.cz/ntk/nusl-399156


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Research > Institutes ASCR > Institute of Scientific Instruments
Conference materials > Papers