Who is proton heavy ion suitable for? Proton heavy ion, what exactly is it?

Proton** has been widely used internationally, and it is also a very small one, which is very suitable for pediatric tumors**. Protons are a type of radiation.

The radiation used in tumors** is broadly divided into photon and particle rays. X-rays and gamma rays used in conventional radiation** are called photon rays. Proton rays, on the other hand, are a type of particle radiation that strips electrons from hydrogen atoms and accelerates the nucleus to high speed.

Proton** is the world's most advanced, accurate, and effective radiotherapy treatment for a variety of tumors. Proton** is also known as "proton line**" and "proton knife", and like the "gamma knife" and "tomo knife" we have heard of, this is not a "knife" in the real sense, but actually a form of radiotherapy.

Proton** uses ionizing radiation generated by proton acceleration to enter the body at an extremely high speed, guided by a specially shaped device, and finally reaches the targeted tumor site, minimizing damage to surrounding healthy tissue. Protons are commonly used for cancers in critical parts of the body. It is also very suitable for tumors in the elderly and children, causing lower and safer and more effective.

Proton heavy ions are not suitable for any cancer patients. General proton heavy ion**, only for general, early-mid-stage tumors**. Not suitable for use with any cancer**.

For cancer patients, a temporary slowdown** can be used at most once in the same position (the so-called temporary slowdown** refers to the temporary slowdown** that cannot be used as a routine and normal **, but only temporarily needs to temporarily delay the deterioration of the disease to a lesser extent**).

Not all cancers are suitable for proton and heavy ion technology, because as today's cutting-edge radiation technology, proton and heavy ion technology actually uses proton or heavy ion rays, which are accelerated by synchrotrons and extracted at high speed, enter the body, and focus on the energy of tumor tissue for radiation. It is also known as "proton knife" and "heavy ion knife". It's a radiation**, but it's more effective, less and recovers faster than the current traditional**.

What tumors can be treated with proton and heavy ion radiotherapy?

Central nervous system tumors: meningioma, pituitary tumor, acoustic neuroma and astrocytoma.

Skull base tumors: chordoma, chondrosarcoma.

Head and neck tumors: nasopharyngeal cancer, oral cancer, pharyngeal cancer, laryngeal cancer.

Thoracic and abdominal tumors: lung cancer, esophageal cancer, liver cancer, pancreatic cancer.

Pelvic tumors: prostate cancer, uterine tumors and other unresectable pelvic tumors, bone tumors and soft tissue sarcomas.

It is a type of malignant tumor radiation technology.

There are three main methods for malignant tumors: surgery, chemistry, and radiation; Proton heavy ion** is a subdivision of radiotherapy, which is more effective than ordinary radiotherapy.

Subdivided, proton and heavy ion radiotherapy are two different types of radiotherapy, namely proton radiotherapy and heavy ion radiotherapy.

protons, i.e., particles with a positive charge after the hydrogen atom has stripped off its electrons; heavy ions, i.e., nuclei or ions with large atomic weights such as carbon and silicon; Proton and heavy ion radiotherapy is the use of protons or heavy ion rays** for tumors.

A brief history of proton heavy ion technology.

Compared with the traditional radiotherapy that has been carried out for a hundred years, proton heavy ion** represents the highest technology and future trend of radiotherapy, due to technical and ** factors, it is only carried out in a few countries such as Germany, Japan and the United States, and there are only dozens of particle devices used for medical purposes in the world.

Technical principle. When protons or carbon ions are accelerated to about 70% of the speed of light by synchrotrons, these ion rays are drawn out and shot into the human body, before reaching the tumor lesion, the ray energy is not much, but after reaching the lesion, the ray will instantly release a large amount of energy, forming an energy release trajectory called "Bragg peak", the whole process is like a "stereotactic blasting" for the tumor, which can carry out strong irradiation on the tumor lesion, and at the same time avoid irradiation of normal tissues to maximize the efficacy.

Technical features: The internationally recognized, state-of-the-art radiotherapy technology is proton heavy ion** technology. When it "strikes" solid tumors with radiation, it can provide strong irradiation to tumor lesions while avoiding normal tissue irradiation, so as to maximize the efficacy.

Proton heavy ion is a more advanced method in recent years, and it belongs to a type of chemotherapy.

Proton, the technology is relatively mature, the equipment construction cost is relatively low, the cost is relatively low, only the DNA single chain of cancer cells is destroyed, and there is an automatic repair of cancer cells.

Heavy ions**, the cost of equipment construction is high, and the cost is slightly higher than that of protons**, because of the "tailing effect" of heavy ion rays, the damage to normal cells is slightly higher than that of protons**.

** Destroys the double strands of DNA and kills cancer cells thoroughly. Development status of proton heavy ions**. This method existed in the 40s of the last century and was proposed in the 50s of the last century.

The United States carried out a laboratory in this area**, and then this technology gradually developed, and now the technology of proton heavy ions** is relatively very mature.

At present, there are three conventional methods for malignant tumors: surgical resection, radiotherapy, and chemotherapy.

Proton heavy ion ** is a kind of radiotherapy, which is simply an upgraded version of radiotherapy, which is characterized by good effect and high cost.

Accurately kill cancer cells, try to avoid damage to normal tissues, *** small, ** high rate. However, the average cost of a course of treatment is 300,000 yuan, and these expenses cannot be reimbursed by medical insurance.

If you want to cover this cost through commercial insurance, it is recommended that the critical illness insurance amount should be high, and the medical insurance should also choose one that can reimburse proton heavy ions**.

However, not everyone is suitable for proton heavy ions**, and they must meet the requirements for admission.

Proton: A proton is a subatomic particle with a positive charge of 10-19 coulombs (c), protons belong to the baryon class and are composed of two upper quarks and one lower quark through gluon under strong interaction. The number of protons in the nucleus of an atom determines its chemical properties and what kind of chemical element it belongs to.

Heavy ions: Heavy ions are charged particles that are heavier than protons, usually containing charged helium, carbon and neon ions.

Taken together, it is usually used in radiation** in medicine.

Proton heavy ion technology is one of the types of radiotherapy and is internationally recognized as the cutting-edge technology of radiotherapy. Protons and heavy ions** are both particle rays, and unlike traditional photon rays, particle rays can form energy Bragg peaks, which can reduce damage to healthy tissues while performing concentrated blasting of tumors. At present, when protons or carbon ions are accelerated to about 70% of the speed of light by synchrotrons, these ion rays are introduced and ingested into the human body, and before reaching the tumor lesion, the radiation energy is not much, but after reaching the lesion, the radiation will instantly release a large amount of energy, forming an energy release trajectory called Bragg peak.

The whole process is like stereotactic targeting the tumor, which can carry out strong irradiation of the tumor lesions, and can avoid irradiation of normal tissues to maximize the efficacy.

There are three conventional methods for malignant tumors. Surgery, radiation, and chemotherapy. The proton heavy ions that you see are radiotherapy, because the proton heavy ions are traveling at a speed close to the speed of light, and the administrative rays are completely cut off in the tumor, and only a small amount of energy is released.

Damage to surrounding normal tissues is minimized. So now I'm working on this technology. In the past, we have also received a lot of Chinese cancer patients to go abroad to receive these advanced **.