Design of A Receiver for Magnetic Resonance Imaging Based on Data Acquisition Card and GPU

doi:10.11938/cjmr20160407

Abstract

Abstract: A receiver for magnetic resonance imaging (MRI) was developed based on data acquisition card and graphic processing unit (GPU). The data acquisition card is controlled by a triggering signal generated from the spectrometer, and samples the output from the pre-amplifier directly. Digital mixing, multi-stage filter decimation and image reconstruction are performed by GPU subsequently. GPU is specialized for high speed computation. When processing signals it can achieve a combination of filters flexibly based on the needs. In addition, double precision floating point format is used in the whole process to ensure a high computation precision. The feasibility of the receiver was demonstrated experimentally.

Key words: signal receiving, graphic processing unit(GPU), magnetic resonance imaging(MRI), data acquisition card

CLC Number:

GUO Xin-yu, XIAO Liang. Design of A Receiver for Magnetic Resonance Imaging Based on Data Acquisition Card and GPU[J]. Chinese Journal of Magnetic Resonance, 2016, 33(4): 581-589.

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