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Abstract #0591

Calibrating BOLD latency with high temporal resolution precision using magnetic resonance inverse imaging

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

1 Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, 2 Institute of Neuroscience, National Yang Ming University, Taipei, Taiwan

The spatial resolution of MR inverse imaging (InI) was empirically tested at 3T and 7T. By using a coil array of the same number of channel and a similar geometry at a higher field, we found that the coil sensitivity becomes more disparate and improves the condition of the spatial encoding. Compared to results at 3T, the InI spatial resolution quantified by the average point-spread function at 7T improved by about 65% and 90% at SNR = 0.1 and 1, respectively.

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