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Design of coil holder for the improved maneuvering in concurrent TMS-MRI
Hsin-Ju Lee1, K J Woudsma2, Mohammed F Ishraq2
1Sunnybrook Research Institute, Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Ontario, Canada.
Background:
Concurrent transcranial magnetic stimulation (TMS) and magnetic resonance imaging (MRI) is time-consuming because of the limited space in the MRI bore and the sophisticated placement and orientation of the TMS coil to elicit the desired brain activities and behaviors.
Objective:
We developed a TMS coil holder capable of quick adjustment of the TMS coil position and orientation. The holder can also hold an MRI receiver coil array.
Methods:
A holder with one controlling knob, two omni-direction rotation joints, and two in-plane rotation joints was developed.
Results:
Different TMS coil positions and orientations can be arranged and fixed in seconds. The holder can also accommodate two TMS coils to allow for multi-coil TMS-MRI.
Conclusion:
Our development significantly improves the workflow of the concurrent TMS-MRI in new neuroscience studies and clinical applications.
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