What is Transcranial Magnetic Stimulation?

Transcranial Magnetic Stimulation (TMS) is a painless and non-invasive green treatment method. Magnetic signals can pass through the skull to the brain nerves without attenuation. In practical applications, it is not limited to brain stimulation. Peripheral neuromuscular can also be stimulated, so it is now called "magnetic stimulation".

Transcranial magnetic stimulation

With the development of technology, transcranial magnetic stimulation (rTMS) with continuously adjustable repetitive stimulation has emerged, and has gained more and more recognition in the fields of clinical psychiatry, neurological diseases and rehabilitation. It mainly uses different frequencies to achieve the purpose of treatment, high frequency (> 1Hz) is mainly the role of excitement, low frequency (1Hz) is the role of inhibition. Because of its painless and non-traumatic physical properties, it has realized the human dream for a long time-virtually destroying the brain to explore brain functions and advanced cognitive functions. With PET,

In 1985, Barker successfully developed the first transcranial magnetic stimulation device and led a research team to establish the British Magnetic Stimulation Company.

In 1988, Tongji Hospital of Huazhong University of Science and Technology successfully developed China's first transcranial magnetic stimulation device.

In 1992, the American company launched the first rTMS.

In 2005, Huazhong Yijie cooperated with Huazhong University of Science and Technology to develop China's first rTMS.

In 2006, Beijing Anding Hospital and Peking University Sixth Hospital successively launched transcranial magnetic stimulation therapy.

according to

Repetitive transcranial magnetic stimulation (rTMS) is used for treatment mainly by changing its stimulation frequency to achieve the purpose of exciting or inhibiting local cerebral cortex function, respectively.

High-frequency, high-intensity rTMS can generate the sum of excitatory post-synaptic potentials, leading to abnormal excitement of nerves in the stimulation site, and the effect of low-frequency stimulation is reversed.

At present, transcranial magnetic stimulation technology has been widely used. Domestic transcranial magnetic stimulation technology has reached the world advanced level. In neuropsychology (depression, schizophrenia), rehabilitation, pediatrics (cerebral palsy, autism, etc.) All aspects have been applied. Among them, the curative effect on depression, sleep disorders and other diseases has achieved promising results in the clinic as a non-drug treatment.

Clinical diagnosis of transcranial magnetic stimulation

As a new neuroelectrophysiological technology, TMS and the EMG evoked potentiometer combined with the newly opened inspection items include:

(1) Motor evoked potential (MEP) is a muscle-motor composite potential that is recorded in the target muscle by stimulating the motor cortex; the transmission of the motor nerve from the cortex to the muscle and the overall synchronization and integrity of the conduction pathway are examined.

(2) Central Motion Conduction Time (CMCT)

(3) Movement threshold (MT) refers to the minimum head magnetic stimulation intensity when the target muscle records greater than 50uV MEP. Generally, the target muscle is usually the abductor of the thumb, and the stimulation site is usually near the C3C4 area. Response to Central Motor Nerve Excitability.

(4) Inhibition and facilitation of paired stimuli and intercortex (ICI / ICF)

(5) Central resting period (CSP)

Clinical application of transcranial magnetic stimulation

TMS can treat schizophrenia (negative symptoms), depression, obsessive-compulsive disorder, mania, post-traumatic stress disorder (PTSD) and other mental illnesses. The treatment of depression has been certified by the FDA in the United States. 20%, treatment effectiveness can be as high as 100%. Relevant treatments have been carried out in major mental hospitals such as Guangzhou Brain Hospital, Hunan Brain Hospital, Shanghai Mental Health Center, Beijing Anding Hospital, Peking University Sixth Hospital, etc., and have achieved gratifying clinical results.

It has good effects in spinal cord injury, Parkinson's disease (PD), epilepsy, post-stroke rehabilitation, peripheral nerve rehabilitation, and neuropathic pain. Is the rare equipment in the field of non-invasive treatment and rehabilitation.

Transcranial magnetic stimulation in other areas

In addition to our existing applications, the unique technical advantages of TMS have given us ample space for scientific research and addiction and detoxification.

Current scientific research topics include: TMS and mood, fatigue, narcotic drugs, cognitive research, somatosensory cortex, drugs, addiction and so on.