Knowledge of Gamma Knife!! 30

Gamma knife is called "knife", but in fact it is not a real scalpel, it is a kind of modern radiation physics, radiation biology, medical imaging, computer, intelligent automatic control and other disciplines in one, with the human craniocerebral disease as the main large-scale high-tech radiosurgery equipment. The basic principle is to use three-dimensional stereotaxic technology to accurately locate the intracranial lesions, and 201 fine-beam gamma rays are precisely focused and irradiated by multiple resolutions, and the lesion tissues are destroyed in a large dose at one time, so as to achieve an effect similar to surgical resection. Because the boundary between the damaged lesion and the surrounding normal tissue is as sharp as a knife, it is vividly called "gamma knife".

Multiple beams of fine gamma rays are precisely focused on one point, and the focus energy is powerful and precisely located on the lesion tissue, and a large dose of one-time irradiation is applied to the lesion to cause necrosis. However, the energy of a single beam of gamma rays is very low, and the normal tissue around the lesion is outside the focus and is not damaged. Like focusing sunlight with a magnifying glass, the heat in focus ignites objects, while sunlight outside of focus is safe.

Gamma knife, also known as stereotactic gamma ray radiation system, is a fusion of modern computer technology, stereotactic technology and surgical technology in one of the most important equipment, it will cobalt-60 gamma ray geometrically focused, concentrated on the lesion, one-time, lethal destruction of the target tissue, and the radiation through the human body normal tissue almost no harm, and the dose is sharply reduced, so its first irradiation range and normal tissue boundaries are very obvious, the edge is like a knife, people call it "gamma knife". Gamma knives are divided into head gamma knives and body gamma knives. The Head Gamma Knife is a method in which multiple sources of cobalt are mounted inside a spherical helmet to focus on a point in the skull, creating a narrow beam of gamma rays with sharp edges.

At the time of **, narrow beam rays are concentrated on the lesion to form a limited high-dose area to destroy the lesion, which is mainly used for small intracranial tumors and functional diseases. Body Gamma Knife is mainly used for various tumors throughout the body.

The effect of Gamma Knife **pituitary microadenoma is certain, and the cost is still much cheaper than the operation, and the general cost ranges from 15,000 yuan to 20,000 yuan. Some places are also less than 10,000 yuan, but the effect of that gamma knife is not as good as the stand-alone head ** system, so when choosing gamma knife ** brain tumor, it is better to choose a stand-alone head gamma knife. The length of hospitalization is generally 1-3 days, because it is best to observe for 2 days after the completion of **.

At present, there are 3 hospitals in Shandong Province with a single head gamma knife, namely Shandong Ankang Hospital (Jining), Zibo Wanjie Hospital, and Weifang People's Hospital. **The fees are 15,000 yuan, 23,000 yuan and 18,000 yuan respectively. Fees are set by the local price department according to the local economic situation, and the effect is the same.

The cost is between 1 30,000 yuan, no need to be hospitalized, whether it can be reimbursed according to the medical insurance policies of different regions, and the adverse reactions of Gamma Knife are milder than those of other programs

No surgery, no bleeding, **bitterness.

Simple and time-saving. The whole process of brain tumor only takes 2 3 hours, and the actual radiation only takes a few minutes to dozens of minutes, and it is generally 1 2 days of hospitalization before and after;

High precision and low damage. Gamma knife is a high-tech product, and its error is only millimeters, so there is almost no damage to the normal tissues around the tumor when the brain tumor is born;

For elderly and frail patients, as well as patients with high blood pressure, heart disease, diabetes, and who cannot tolerate surgery**, the use of Gamma Knife** significantly improves the safety**.

Gamma knife, also known as stereotactic gamma ray radiation system, is a fusion of modern computer technology, stereotactic technology and surgical technology in one of the most important equipment, it will cobalt-60 gamma ray geometrically focused, concentrated on the lesion, one-time, lethal destruction of the target tissue, and the radiation through the normal tissues of the human body almost no harm, and the dose is sharply reduced, so its first irradiation range and normal tissue boundaries are very obvious, the edge is like a knife, people call it "gamma knife".

Advantages: the positioning is extremely accurate, and the error is often less than millimeters; The dose gradient of each gamma ray is extremely large, and there is little damage to the tissue. However, the rays that converge together from different locations can lethal* destroy the target tissue.

It is named because it functions like a scalpel and has the advantages of no trauma, no need for general anesthesia, no surgery, no bleeding and no infection.

Disadvantages: Gamma knife is radioactive, all normal tissues and tumor tissues in the irradiation area are killed, the larger the irradiation range, the longer the irradiation time, the greater the damage to normal tissues, especially for vital organs, the blow is even worse; Gamma knife can also cause a series of radiation reactions during or after irradiation, such as hair loss, nausea and vomiting, fatigue, leukocytes, platelets and pancytopenia, etc., and in severe cases, it can also cause difficult radiation sickness; Gamma rays can also interfere with and destroy the normal immune function of the human body, which is undoubtedly worse for cancer patients.

The "Gamma Knife" is called "Knife", but it is not actually a scalpel, it is a hemispherical helmet full of alignments, and the helmet can shoot 201 high-dose cobalt-60 ion rays ---gamma rays). It is precisely located at a certain site using modern imaging techniques such as CT and magnetic resonance, which we call a "target".

Applicable diseases: Gamma Knife is divided into head Gamma Knife and body Gamma Knife. The head gamma knife has static gamma knife and rotary gamma knife, static gamma knife is to install a plurality of cobalt sources in a spherical helmet to focus on a certain point in the skull, rotary gamma knife is improved on the basis of static type, with many advantages, is a Chinese patent.

Head Gamma Knife can be non-invasive**Trigeminal neuralgia (trigeminal neuralgia), glioma, meningioma, acoustic neuroma, pituitary tumor, craniopharyngioma, etc.

A gamma knife is a hand knife made of gamma metal. (stove good).

a.That's right. b.Mistake.

Correct sock answer: B

Gamma knives are divided into head gamma knives and body gamma knives. The head gamma knife has static gamma knife and rotary gamma knife, static gamma knife is to install a plurality of cobalt sources in a spherical helmet to focus on a certain point in the skull, rotary gamma knife is improved on the basis of static type, with many advantages, is a Chinese patent.

At present, the Leksell Gamma Knife is commonly used internationally, which is also the standard equipment for stereotactic radiosurgery. Since the Body Gamma Knife is not recognized by the Chinese Ministry of Health, it is currently only used in hospital systems in Chinese mainland that are not managed by the Ministry of Health. Body Gamma Knife is mainly used for various tumors throughout the body.

Head Gamma Knife Clinical Indications:

Intracranial tumors such as acoustic neuroma, pituitary tumor, meningioma, pineal gland tumor, lymphoma and so on below millimeter;

2. Intracranial arteriovenous malformation;

3. Cavernous hemangioma.

4. Some surgeries cannot remove clean benign tumors;

5. Intracranial metastases with small and clear margins;

6. Functional neurosurgical diseases: primary or drug-ineffective trigeminal neuralgia, intractable pain, movement disorders caused by Parkinson's disease, epilepsy and other functional diseases.

7. Cervical and above spinal cord tumors.

8. Partial extracranial tumors of the head and neck.

Trigeminal neuralgia.

1. Patients with primary trigeminal neuralgia, who are ineffective or unable to tolerate drugs after drug **.

2. Patients with trigeminal neuralgia who are ineffective or ineffective after occlusion, radiofrequency thermocoagulation, glycerol destruction, etc.

3. Patients who are afraid of craniotomy and are worried about surgical complications are suitable for non-invasive gamma knife**.

4. Secondary trigeminal neuralgia, the primary lesion has been treated, or the primary tumor is small.

5. The elderly, patients with chronic diseases such as diabetes, hypertension, heart disease, and those who are in poor physical condition and cannot tolerate surgery can choose Gamma Knife**.

Gamma Knife ** Trigeminal neuralgia is a non-invasive ** method, which does not require surgery, does not require anesthesia, has no wound, and has no special requirements for the patient's body.

Gamma Knife is a medical device that uses radiation (such as rays) to irradiate and destroy tumor lesions in the body. Because it makes patients suffer and does not bleed, especially for intracranial tumors, it can show its incomparable superiority, so it is widely used by the medical community in various countries for intracranial tumors. At present, the stationary gamma knife invented by the Swedes is commonly used internationally.

In September 1996, China successfully developed the rotary gamma knife, which successfully developed many patients with intracranial tumors. **The rate is more than 90%.

Gamma knife, also known as stereotactic gamma ray radiation system, is a fusion of modern computer technology, lead orientation technology and surgical technology in one of the most advanced equipment, it will cobalt-60 gamma ray geometrically focused block, concentrated on the lesion, one-time, lethal imitation or destruction of the target tissue, and the radiation through the normal tissues of the human body is almost harmless, and the dose is sharply reduced, so its ** irradiation range and normal tissue boundaries are very obvious, the edge is like a knife cut, People call it "Gamma Knife".

The full name of Gamma Knife is Gamma Ray Stereotactic System, which is a kind of equipment used for cancer radiation, not a scalpel in the true sense.

Its principle is to use a series of modern technologies such as nuclear physics, computer, biological radiology and electromechanical to irradiate multiple beams of fine gamma rays to the human body from different angles and directions, and make them converge at the same point to form a focus, so that the cancer cells on the focus can be quickly damaged or even killed, so as to achieve the purpose of eliminating the lesion.

Gamma knife, also known as stereotactic gamma ray radiation system, is a fusion of modern computer technology, stereotactic technology and surgical technology in one of the most important equipment, it will cobalt-60 gamma ray geometrically focused, concentrated on the lesion, one-time, lethal destruction of the target tissue, and the radiation through the human body normal tissue almost no harm, and the dose is sharply reduced, so its first irradiation range and normal tissue boundaries are very obvious, the edge is like a knife, people call it "gamma knife".