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It is reported that recently, Professor Li Yongjie's team of the Neurological Center of the University of Hong Kong (hereinafter referred to as " Hong Kong University Shenzhen Hospital ") successfully implemented a brain "magnetic wave knife" treatment for patients with idiopathic tremors . solved the old problem of right hand tremors that plagued patients for many years. It is the first patient treated with in my country.
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"Previous neurosurgery functional surgery required surgery or skull drilling, and some also had to implant equipment in the body, which restricted the treatment of some patients who were unwilling or unsuitable for craniotomy. Although the brain' magnetic wave knife ' is called a knife, it does not require surgery. The treatment does not require general anesthesia . The effect is immediate, the patient's recovery time is short, and there is no risk of intracranial infection with intracranial after surgery, bringing new hope for the treatment of patients with idiopathic tremor and tremor Parkinson's disease." Professor Li Yongjie said.
Professor Li Yongjie's team carefully formulated a detailed treatment plan for Lao Wang. With the joint efforts of the team, Lao Wang responded well after the operation, and the tremor that had troubled him for a long time was immediately controlled. After the operation, the patient underwent professional assessments including drawing, pouring water, and finger nose experiments.
The patient's right hand was constantly trembling, and now he can complete these actions normally. The day after the operation, the patient was discharged from the hospital successfully.
About Professor Li Yongjie
According to the patient, Professor Li Yongjie was specially asked for this operation. Why did the patient call Professor Li Yongjie for the operation? It is understood that he has gone from Johns Hopkins Hospital in the United States to in the Xuanwu Hospital of Capital Medical University, from an excellent medical expert to an outstanding discipline leader; more than ten years ago, he introduced the "cell knife" technology, which represents the cutting-edge technology of functional encephalopathy treatment from the United States, greatly improving the efficiency of Parkinson's disease surgical treatment, allowing thousands of Chinese patients to no longer tremble and stiffen their muscles after the magical "cell knife" treatment, and recovered his lost ability to live and work. He was wearing the halo of the first person in China's "cell knife" and wanted to transform himself into a "scientist-type doctor."
1998, Li Yongjie resolutely returned to China. Li Yongjie led his team to continuously track the latest developments in functional encephalopathy in the world, improve technical methods, improve treatment levels, and expand the scope of treatment. In March 1999, the Institute of Functional Neurosurgery successfully used subthalamic nucleus damage technology to treat Parkinson's disease. In the same year, it carried out deep brain electrical stimulation technology (brain pacemaker therapy) to treat Parkinson's disease. In May 1999, the first surgery to perform systemic torsional spasm was successful. In the second half of 1999, the first surgery for spastic torticollis, chorea and tics syndrome were successful one after another.
Professor Li Yongjie is good at treating Parkinson's disease, primary tremor, torsional spasm , writing spasm, tics and other motor disorders, epilepsy, pain (trigeal neuralgia, glossopharyngeal neuralgia , cancer pain, etc.), facial spasm and cerebral palsy .
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No knife, good for you,
The accurate full name of the magnetic wave knife is "MRgFUS, MR guided Focused Ultrasound). literally understands that "magnetic" represents magnetic resonance, "wave" refers to ultrasonic waves, and "knife" describes the destructive effect of biological tissue .
Although idiopathic tremors will not shorten the patient's life expectancy, they seriously affect the patient's quality of life. Some patients will be unable to independently complete the simplest movements in daily life due to uncontrollable tremors, such as writing, dining, drinking water, etc. Therefore, idiopathic tremors will have a negative psychological impact on patients. Patients are often tortured by negative emotions such as anxiety, depression, and inferiority complex, and the disease seriously affects the quality of life.The pathogenesis of
1 idiopathic tremor is not very clear. Currently, research has found that abnormal electroencephalopathy causing tremor is treated by thalamus , while drug treatment has limited effect on idiopathic tremor.
Over the years of surgical experience shows that using the thalamic ventral intermediate nucleus as a therapeutic target will alleviate tremor symptoms. There are two traditional surgical treatment methods: one is radio frequency ablation, inserting the radio frequency probe into the head to drill hole for heat damage; the other is DBS implantation, which inserts the electrode after drilling the head, and uses high-frequency electrical stimulation to inhibit nerve cell activity. Both methods require craniotomy, incision of the scalp and drilling holes in the skull.
1999, the "magnetic wave knife" was developed by Insighttec (中文六).
According to the direction and scope of the treatment of "magnetic wave knife", there are two common ones: body magnetic wave knife and brain magnetic wave knife. The former is mainly used to treat uterine fibroids, bone metastases and prostate cancer .
Insightec is currently the only company in the world that has successfully developed and used focused ultrasound technology for brain diseases and introduced it to the market. 's "magnetic wave knife" brain system Exablate® Neuro targets specific parts of the brain, focusing ultrasound passes through the skull at specific frequencies and different intensities, and then uses low-energy focused ultrasound for intraoperative target evaluation, and finally improves ultrasound energy to ablate the lesions, thereby achieving the purpose of precise treatment.
Insightec Neurosurgery Solution Exablate® Neuro System (magnetic resonance guided focus ultrasound brain system), provides a non-invasive, magnetic resonance imaging-guided thalamic surgery for patients with primary tremor, tremor-based Parkinson's disease, and neuralgia .
treatment process does not require surgery, drilling or craniotomy, and there is no implant.
Before high temperature treatment, use safe low-energy ultrasound to perform anatomical positioning and symptom relief (or any side reactions that need to be avoided). This process allows treatment adjustments to be made before permanent damage treatment. Postoperative tremors can be relieved immediately and improve quality of life.
The domestic Shende Medical's magnetic wave knife products have reached the international advanced level in terms of project accuracy, focus area size, and controllable heating focus. There are endless clinical subjects queuing to join the group.
Shen De Medical "magnetic wave knife" through innovative integration of two core technologies, "superconductive magnetic resonance guidance" and "phase-controlled focus ultrasound", can penetrate the skull for treatment of brain neurological diseases and bypass the ribs for abdominal malignant tumor treatment, which has the advantages that are incomparable to the above treatment methods.
With the general policy of replacing imports in China and the support of the country for high-end national medical device brands, Shen De's products not only have therapeutic effects that are not inferior to foreign equipment, but also have an absolute competitive advantage over foreign products. Advantages of
Magnetic wave knife
Non-invasive, safe and efficient treatment options; MR real-time temperature monitoring; outpatient treatment, rapid return to normal life; low complications, low risk of infection, no anesthesia; treatment is effective once, and treatment can be repeated in necessary conditions; the quality of life is significantly improved.
How the magnetic wave knife works
Fusion of unique magnetic resonance imaging with high-energy focused ultrasound, which can achieve accurate positioning of tissues in the affected area and real-time temperature monitoring of the treatment effect. What doctors need when performing surgery is a computer, keyboard and mouse, not scalpel .
Magnetic wave knife How to achieve accurate and safe
Magnetic wave knife is a non-invasive treatment . For doctors, they cannot see the changes in tissue with the naked eye. This is completely different from our conventional surgery. Therefore, we need a new monitoring method, and ultimately, we use magnetic resonance to solve this problem.
Many people know that when undergoing magnetic resonance examination, you can see tissue lesions, and there is no radiation.During this non-invasive surgical treatment of magnetic wave knife, the magnetic resonance continuously guides the treatment, and the temperature and ablation points can be monitored in real time and in full through the high-resolution maps and heat maps provided by magnetic resonance. Magnetic resonance can help doctors understand, monitor and judge the entire process of magnetic wave knife treatment in real time.
Secondly, the patient is awake during the entire treatment process. Except for the head being fixed, his hands and feet can be moved, which makes it easy to communicate with the doctor at any time. In order to ensure safety and comfort of the treatment process, the doctor and the patient have an emergency stop button on their hands, which greatly enhances the safety of the operation and can terminate the treatment when the patient feels uncomfortable.
Currently, the positioning accuracy of magnetic wave knife in the skull is less than 1 mm , which can fully meet the safety and effectiveness requirements of functional neurosurgery. Non-invasiveness makes it possible to have no risk of surgery such as infection, greatly improve the comfort level and greatly shorten the recovery time.
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Created a new milestone in non-invasive treatment of the brain
In 2018, the General Hospital of the People's Liberation Army of China (301 Hospital) introduced the first "magnetic wave knife" brain system into China, and Pan Longsheng, chief physician of the Department of Neurosurgery of the First Medical Center of the People's Liberation Army of China, served as the head of the treatment system project.
On January 17, 2019, the General Hospital of the People's Liberation Army successfully carried out the first "magnetic wave knife" treatment surgery for idiopathic tremor in mainland China.
So far, Director Pan Longsheng has led about 60 brain "magnetic wave knife" operations, all of which have achieved good postoperative results.
In the first half of 2021, the Shenzhen Hospital of Hong Kong University began to actively prepare for the introduction of the brain "magnetic wave knife" treatment system. In January 2022, the treatment system was successfully installed and put into use.
This is the first installed system in China since the brain "magnetic wave knife" treatment system was approved by the National Medical Products Administration (NMPA) in February 2021. This has brought world-leading treatment technology to patients in Shenzhen, , Greater Bay Area , and even domestic and foreign patients, allowing domestic patients to obtain non-invasive and non-ionizing radiation treatment for brain diseases without going abroad.
It is understood that the Shenzhen Hospital of Hong Kong University is the first hospital to be installed in China after the Insightec brain magnetic resonance guided focus ultrasound (MRgFUS, also known as "magnetic wave knife") system was approved by the State Food and Drug Administration. It is also the first hospital in China to carry out clinical services for "magnetic wave knife", creating a new "milestone" in the field of non-invasive and non-ionizing radiation treatment for brain diseases in the Greater Bay Area.
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magnetic wave knife at present or
can also treat these diseases
Since the advent of transcranial magnetic wave knife technology, neurologists and researchers have been paying close attention. The clinical application of this technology was approved by the European CE certification in 2012 and in 2016, the US Food and Drug Administration (FDA). Doctors are used to treat Parkinson's disease mainly in primary tremor and tremor, as well as other dyskinesia, and to patients with advanced Parkinson's disease with severe muscle stiffness or dyskinesia. The scope of indications for continues to expand .
Scientists believe that magnetic wave knife technology still has great potential. A large number of clinical studies have shown that it can be more widely used in the treatment of neurological diseases , such as stubborn pain, epilepsy, brain tumors and neuropsychiatrics (such as depression and obsessive-compulsive disorder ), and the importance of brain magnetic wave knife application is becoming increasingly prominent.
Professor Li Yongjie believes that this technology can use the physical function of ultrasound to open the blood-brain barrier, or improve the blood circulation in the patient's brain to facilitate more therapeutic drugs to brain cells. provides a possibility for the treatment of Alzheimer's disease. The technology will bring potential benefits to patients with tumors and functional diseases.There is also a lot of evidence in clinical research, and I believe that it may enter formal clinical services soon.
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From large-scale to minimally invasive, then to non-invasive, is the trend of medical development and the need of patients. We look forward to more high-quality medical resources being implemented in China in the future. At the same time, we look forward to the magnetic wave knife technology that can be used to treat more diseases and improve the health level of the people!
