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Abstract #3919

Fast functional MRI using inverse imaging with dynamic off-resonance artifacts correction

Ruo-Ning Sun 1 , Yi-Cheng Hsu 1 , Ying-Hua Chu 1 , Shang-Yueh Tsai 2 , Wen-Jui Kuo 3 , and Fa-Hsuan Lin 1

1 Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, 2 Institute of Applied Physic, National Chengchi University, Taipei, Taiwan, 3 Institute of Neuroscience, National Yang Ming University, Taipei, Taiwan

We use the dynamic off-resonance in k-space (DORK) method to correct the phase drift in magnetic resonance inverse imaging (InI), Empirical results show that DORK can reduce the InI fluctuation in the respiratory frequencies, improve the stability of the fMRI time series, and increase the peak value of hemodynamic response estimates.

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