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MIKULKA, J.
Originální název
Parallelized Calculation of the T2 Relaxation Time in MRI
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
This paper presents the computation of relaxation time T2 measured with the Spin Echo method. The tomograph provides a signal in which the important factor is the location of the peaks from individual measurements. These points must be interleaved with an exponential function. The described process has to be repeated for each pixel of the sensed tissue, and this requirement makes the processing of larger images very time-consuming. Assuming the resolution of 256x256, 20 slices, and 5 measurements with different times TE, it is necessary to reconstruct 1.3x10^6 exponential functions, which requires the processing of more than 6 MB of data. At present, such computation lasts approximately 3 minutes if performed by means of a regular PC. The author discusses various approaches to the parallelization of the given problem. In the described context, the time required for the processing was shortened to 300 ms.
Klíčová slova
CUDA, magnetic resonance, Spin Echo, T2 calculation
Autoři
Rok RIV
2014
Vydáno
9. 7. 2015
ISBN
978-80-214-4983-1
Kniha
37th International Conference on Telecommunications and Signal Processing (TSP)
Strany od
725
Strany do
728
Strany počet
4
URL
https://ieeexplore.ieee.org/document/7296359
BibTex
@inproceedings{BUT108299, author="Jan {Mikulka}", title="Parallelized Calculation of the T2 Relaxation Time in MRI", booktitle="37th International Conference on Telecommunications and Signal Processing (TSP)", year="2015", pages="725--728", doi="10.1109/TSP.2015.7296359", isbn="978-80-214-4983-1", url="https://ieeexplore.ieee.org/document/7296359" }