Transcranial magnetic stimulation of deep brain regions: evidence for efficacy of the H-coil.

Zangen, A., Roth, Y., Voller, B., & Hallett, M. (2005). Clinical neurophysiology, 116(4), 775-779

This study compares the penetration depths of the Brainsway® Deep TMS (Transcranial Magnetic Stimulation) H-coil to a standard coil (figure 8) in healthy individuals. The study tested the efficacy, and some issues related to safety, of the H-coil, on healthy volunteers. In this study it was demonstrated that the H-coil is able to reach significantly deeper brain areas than those reached by the figure-of-8 coil. Moreover, the stimulation is achieved without increasing the intensity to extreme levels.

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