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◎ Kyushu International Heavy Ion Therapy Center (Kyushu International Heavy Ion Cancer Therapy Center)

Introduction to Heavy Ion Radiotherapy

The Chinese is called heavy ion (Japanese: heavy particle jyuryushi, not avoiding confusion in reading and presented in Japanese kanji below). Radiation therapy is a kind of radiation therapy. It has been practiced in Japan for many years. This therapy uses carbon or neon The charged particles of the medical accelerator make their speed reach about 70% of the speed of light or higher, and attack cancer nests, which is a kind of cutting-edge medical treatment. Heavy particle beams can selectively irradiate tumor cells in a concentrated manner, precisely destroying tumor cells, and have little effect on normal cells, but on nerves, blood vessels, heart and other parts. Traditional radiation therapy has the strongest energy when it penetrates the surface latent tissue of the human body, but the energy has weakened when it reaches the deep tumor, not only the treatment effect cannot meet expectations, but also often affects normal tissues, and patients often have epidermal muscle fibrosis. If side effects such as discomfort occur, neutron beams or heavy ion beams are used for treatment instead, since only cancer cells are irradiated intensively, the damage to surrounding normal cells is minimized, and the burden on the patient's body is also small.

 

Heavy particle rays are extremely lethal to tumor cells. Ordinary radiation can only damage the single bond of the DNA double helix structure of tumor cells. Medical accelerators are used to accelerate heavy particle rays to near the speed of light, allowing cancer cells to When it is touched, it can break all the DNA double strands due to the huge energy, so that it cannot repair itself and achieve the effect of destroying cancer cells. The cancer cell lethality of heavy particle radiation is about 2~3 times that of proton radiation, X-ray and gamma radiation, and it is characterized in that a single irradiation can obtain a high therapeutic effect.

 

Heavy particle radiation therapy is suitable for hard tumors that remain at a fixed location, and the following are the treatment targets for heavy particle radiation. like:
head and neck tumors,Base of the skull tumor,lung non-small cell lung cancer,esophagus,breast cancer,kidney,cervix,Chondroostoma,liver,pancreas,Prostate cancer, etc.

 

Subjects with Untreatable Cancer:

(1) Leukemia and other blood-related cancers.

(2) Cancer with extensive metastases.

(3) Irregular peristaltic organ cancers such as gastric cancer and colorectal cancer.

(4) Cancer sites that have received radiation therapy in the past, etc.

 

Medical assistants are available to assist Kyushu International Heavy Ion Beam Cancer Therapy Center in seeking medical assistance. Please contact us if you need it.

 

Treatment time: Each treatment can be completed within about 5 minutes (there is also a saying that it can be completed within 2 minutes). Once a day, such as early liver cancer or the first stage of non-small cell lung cancer, only need a few times to complete the treatment. It is a relatively easy treatment.

 

According to the data of Kyushu International Heavy Ion Beam Therapy Center, please refer to the following figure in comparison with the previous X-ray and gamma-ray radiation therapy. It should be noted that the treatment of heavy particle radiation has more limitations compared with chemotherapy/targeted drugs, immune cell therapy, etc. Whether it is acceptable or not needs to be judged by a physician.

◎ Q & A about heavy ion radiotherapy

Introduction to Proton Therapy

質子線治療

◎ MediProton International Proton Therapy Center (MediProton International Proton Therapy Center)

The so-called proton beam is the same as traditional radiation therapy, which uses the energy generated by radiation to destroy cancer cells. However, when traditional photon beams are used to treat tumors, high-dose radiation is released from the body surface, and the dose has been reduced when it reaches the target area. The normal tissue where the path is located must bear more radiation damage. What about protons? It is a particle flow formed by using hydrogen ions. After being accelerated to nearly 60% of the speed of light by a synchrotron, only a small amount of energy will be released on the path passing through non-tumor tissues, and a large amount of energy will not emerge until the part to be treated.

According to the data of MediPoton, proton beam is the treatment of choice for patients with early prostate cancer. At present, the center has received 613 prostate cancer patients as of June 2016, and the treatment effect is quite good. In addition, according to the statistical results of the center, the two-year local control rate of the first stage of early non-small cell lung cancer can reach 60% to 90%, and there is no discomfort such as pain and burning during the treatment.

 

The center also states:Clinically, there is no significant difference in the therapeutic effects of proton beams and heavy ion beams on tumors, while proton beams have less impact on surrounding normal cells. Proton beam irradiation can more effectively protect surrounding normal tissues while killing tumor cells .

Proton beam adaptation object:Patients with solid tumors such as prostate cancer, early lung cancer, early laryngeal cancer, and early kidney cancer

 

Currently, the center can treat solid tumors such as prostate cancer, early lung cancer, early laryngeal cancer and early kidney cancer. Other types of cancer also need to be judged according to the patient's condition. During the treatment period, the size and type will vary depending on the affected area. It takes about 2 weeks for lung cancer and 5.5 weeks for prostate cancer, plus the preparation time before treatment (procedures such as inspection before treatment and preparation for treatment) takes about a week. However, it should be noted that proton beam therapy, like surgery, may recur and metastasize, so please understand that this treatment is an alternative to surgery and a new local treatment for tumors.

◎ Q & A about proton beam therapy

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