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Abstract #2447

Synchronizing TMS pulses for free artifact fMRI for multichannel TMS systems using the integrated whole head TMSMR 28 channel RF coil array

Lucia Navarro de Lara1,2, Isil Uluc1,3, Qinglei Meng1,3, Jason Stockmann1,3, Larry Wald1,3, and Aapo Nummenmaa1,3
1Martinos Center - MGH, Charlestown, MA, United States, 2Harvard Medical School, Boton, MA, United States, 3Harvard Medical School, Boston, MA, United States


For TMS/fMRI experiments, to acquire functional images without artifacts, general recommendations have been proposed. In order to apply TMS pulses in a multichannel Transcranial Magnetic Stimulation system integrated with the new constructed TMSMR 28- channel RF coil, we have explored the different options and artifacts that can be generated depending on when the TMS pulses are applied with respect to the sequence timing. As conclusion, we propose a method using an RF pick up loop to assure that the delivery of the TMS pulses are not close to the EPI navigators or the imaging gradients.

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