brachytherapy (redirected from Brachytherapy or sealed source radiotherapy)

brachytherapy /brachy·ther·a·py/ (-ther´ah-pe) treatment with ionizing radiation whose source is applied to the surface of the body or within the body a short distance from the area being treated.

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brach·y·ther·a·py (brk-thr-p)

n.

Radiotherapy in which the source of irradiation is placed close to the surface of the body or within a body cavity.

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Brachytherapy

A type of radiation treatment for cancer in which the source of the radiation is applied directly to the surface of the body.

Mentioned in: Eye Cancer, Prostate Cancer, Retinoblastoma

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brachytherapy

Etymology: Gk, brachys, short, therapeia, treatment

the placement of radioactive sources, such as seeds, needles, or catheters, in contact with or implanted into the tumor tissues to be treated for a specific period. Sources can be temporary or permanent. The rationale for this treatment is to provide a high absorbed dose of radiation in the tumor tissues and a very limited absorbed low dose in the surrounding normal tissues. Traditional brachytherapy implants deliver low doses of radiation; the newest variations deliver high doses. Compare teletherapy.

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brachytherapy (braˈ·ki·theˑ·r·pē),

n ionizing radiation applied at a short distance from the body or directly to the surface.

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brachytherapy

a form of radiotherapy in which the source of radiation is applied in or on the patient in one prolonged dose, using surface applicators, needles, seeds or suspensions for use in serous cavities.

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brachytherapy

Implant radiation, internal radiation, intracavitary therapy, interstitial radiation therapy Radiation oncology RT in which radioactive materials–iridium-192, radium-226, and other radioisotopes, sealed in needles, seeds, wires, or catheters are placed in direct contact with certain carcinomas to deliver locally intense ionizing radiation–eg, as needed in invasive CA of the uterine cervix. See Intravascular brachytherapy.