Proton therapy

Proton therapy is a method of radiotherapy beam of heavy particles - protons. Source proton radiation are charged particle accelerators (see). The advantage of proton therapy is a weak lateral dispersion, high depth dose at the specified depth in a small volume of tissue at the end of the run of protons. Proton therapy is successfully used for the destruction of the pituitary gland in the case of advanced breast cancer, when the adenoma of the pituitary gland, brain tumors, cancer of the uterus, relapses and metastases of breast cancer. Irradiation is carried out fixed or movable fields every day or every other day in one dose 650-1250 happy and General 4000-12 000 happy.
The indispensable condition of successful therapy is the precise determination of the depth of the location of the tumor and its volume, the exact focus of the beam and careful fixation of the patient during treatment.
Cm. also Radiation therapy, the Dose of ionizing radiation.

Proton therapy is a type of radiation therapy; treatment with high-energy protons obtained with the help of accelerators. Thanks to the peculiarities of interaction of the proton radiation (see) with the substance and the ability to regulate energy radiation, and hence the maximum dose became feasible exposure to large doses of small pathological foci (e.g., tumours up to 1 cm in diameter) almost without damaging surrounding tissues.
The direction of the proton beam (see) on the hearth control using x-rays.
Pay special attention to the fixation of the patient during irradiation.
Proton therapy is used to suppress gonadotroponoe activity of the pituitary gland (radiation gipofizektomii) in the treatment of patients with metastatic breast cancer or diabetes. For the destruction of the pituitary gland focal dose should be approximately 17 000 happy. Good results were obtained for the proton therapy of patients with acromegaly (3000-7000 rad). Cm. also Radiation therapy.