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Three-Dimensional Distribution of the Electric Field Induced in the Brain by Transcranial Magnetic Stimulation Using Figure-8 and Deep H-Coils

Roth, Y., Amir, A., Levkovitz, Y., & Zangen, A. (2007). Journal of Clinical Neurophysiology, 24(1), 31-38.

This study compares the penetration depths of two different Brainsway® Deep TMS (Transcranial Magnetic Stimulation) H-coils and a standard coil (Figure 8 coil). In the study, electrical fields of H-coils and of a Figure 8 coil were measured using a head model. This study demonstrates that the H-coil is able to reach significantly deeper brain areas than those reached by the figure-of-8 coil. Also, it was shown that the H-coils allow for stimulation of several brain regions at the same time.

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