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

  title={Transcranial magnetic stimulation of deep brain regions: evidence for efficacy of the H-Coil},
  author={Abraham Zangen and Yiftach Roth and Bernhard Voller and Mark Hallett},
  journal={Clinical Neurophysiology},
Three-Dimensional Distribution of the Electric Field Induced in the Brain by Transcranial Magnetic Stimulation Using Figure-8 and Deep H-Coils
The H-coils enable simultaneous stimulation of several brain regions, whereas the depth penetration in each region can be controlled either by adjusting the stimulator output, and/or by varying the distance between various coil elements and the skull.
Transcranial Magnetic Stimulation: Development of a Novel Deep-Brain Triple-Halo Coil
A multicoil configuration, the triple-halo coil (THC), which can stimulate deep brain structures such as the hippocampus and amygdala, is designed and tested and determines the induced electric field and magnetic field in these regions due to the THC alone and in combination with a figure-of-8 coil.
Deep Transcranial Magnetic Stimulation: Modeling of Different Coil Configurations
The results support that the double cone coils and the large diameter circular coils are more prone to activate deeper brain structures but are also characterized by a reduced focality on the surface of the cortex, with the consequent possible counter effect of stimulating regions not of interest.
Coil design considerations for deep-brain transcranial magnetic stimulation (dTMS)
Preliminary simulation results suggest that the crown coil has the best overall performance for dTMS, and synchronous firing of all TMS coil elements appears more effective at stimulating deep neurons than is sequential firing.
A randomized controlled feasibility and safety study of deep transcranial magnetic stimulation
Deep Transcranial Magnetic Stimulation for the Addiction Treatment: Electric Field Distribution Modeling
Deep transcranial magnetic stimulation (dTMS) is a neurostimulation technique for deep brain structures that has recently been successfully applied in the clinic for the treatment of addiction. In
Coil design considerations for deep transcranial magnetic stimulation
Electric Field Distribution Induced by TMS: Differences Due to Anatomical Variation
It is concluded that personalized models provide complementary information and should be preferably employed in the context of diagnostic and therapeutic TMS studies.


A Coil Design for Transcranial Magnetic Stimulation of Deep Brain Regions
  • Y. Roth, A. Zangen, M. Hallett
  • Physics, Biology
    Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society
  • 2002
The suggested coil is likely to have the ability of deep brain stimulation without the need to increase the intensity to levels that stimulate cortical regions to a much higher extent and possibly cause undesirable side effects.
Transcranial stimulation of the leg area of the motor cortex in humans
It is concluded that direct activation of the pyramidal cells occurs in the leg area of the motor cortex in all forms of magnetic and electrical stimulation.
Optimal Focal Transcranial Magnetic Activation of the Human Motor Cortex: Effects of Coil Orientation, Shape of the Induced Current Pulse, and Stimulus Intensity
We studied the effects of coil orientation, stimulus intensity, and shape of the induced current pulse on the amplitudes of motor evoked potentials in the left abductor pollicis brevis of 10 normal
Use and safety of a new repetitive transcranial magnetic stimulator.
The distribution of induced currents in magnetic stimulation of the nervous system.
  • P. Tofts
  • Physics
    Physics in medicine and biology
  • 1990
This model can be used to characterise the performance of other shapes of stimulating coils and the dependence on fibre orientation, and suggest that nerve fibres running parallel to the skin surface are more likely to be stimulated than those running obliquely.
Transcranial Magnetic Stimulation as Therapy for Depression and Other Disorders
The reviewed evidence indicates that repetitive transcranial magnetic stimulation may be useful in the treatment of depression, and perhaps other disorders which are associated with regional hypometabolism, and a range of disorders could be similarly treatable.