Radiation therapy

Japanese: 放射線治療 - ほうしゃせんちりょう

Also called radiation therapy. A treatment method using radiation. X-rays, gamma rays, electron beams, and various radioactive elements are used. The main targets are malignant tumors such as cancer and sarcoma, as well as benign tumors such as hemangiomas, Graves' disease, scrofula, and various skin diseases. External irradiation is broadly divided into superficial treatment, in which relatively shallow areas are irradiated with low-voltage X-rays, and deep treatment, in which deep lesions are irradiated with high-voltage X-rays or cobalt-60. The latter uses ultra-high voltage X-rays or electron beams produced by betatrons or linear accelerators. Various radioactive elements, especially radioisotopes, are used for internal irradiation, and can be injected or taken orally, or inserted into a localized lesion for interstitial irradiation.
→ Related topics Gamma knife | Tongue cancer | Hematopoietic stem cell transplant | Lichen | Head and neck cancer | Breast cancer | Opportunistic infections | Radiology | Radium therapy | Physical therapy | Particle beam therapy

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

放射線療法ともいう。放射線の照射による治療法。Ｘ線，γ線，電子線，各種放射性元素などが使用される。対象は主として癌，肉腫などの悪性腫瘍(しゅよう)で，そのほか血管腫などの良性腫瘍，バセドー病，瘰癧(るいれき)，各種皮膚疾患など。体外照射は，低電圧Ｘ線などで比較的浅い部位を照射する表在治療と，高電圧Ｘ線やコバルト60で深部の病巣を照射する深部治療に大別され，後者にはベータトロンや直線加速装置による超高圧Ｘ線や電子線が利用されている。体内照射には各種放射性元素，特に放射性同位元素が利用され，注射や内服によるほか，その封入細管を限局した病巣に刺入する組織内照射が用いられる。
→関連項目ガンマナイフ｜舌癌｜造血幹細胞移植｜苔癬｜頭頸部癌｜乳癌｜日和見感染症｜放射線科｜ラジウム療法｜理学療法｜粒子線治療

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