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Abstract #3523

Sensitive detection of hemodynamic responses to TMS pulse at human sensorimotor cortex

Pu-Yeh Wu1, Ying-Hua Chu1, Aapo Nummenmaa2, Thomas Witzel2, Shang-Yueh Tsai3, Wen-Jui Kuo4, and Fa-Hsuan Lin1

1Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, 2Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States, 3Institute of Applied Physics, National Chengchi University, Taipei, Taiwan, 4Institute of Neuroscience, National Yang Ming University, Taipei, Taiwan

We tested how TMS pulses and the separation between TMS pulse and RF excitation affect MRI SNR and tSNR using our tailored 8-channel TMS-compatible MRI coil array. Result from an in vivo experiment using this integrated system to record the BOLD signal elicited by TMS pulses at human primary motor cortex is also reported.

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