Brachytherapy


Brachytherapy
Radiation treatment given by placing radioactive material directly in or near the target, which is often a tumor. Brachytherapy for prostate cancer, for example, is also called interstitial radiation therapy or seed implantation. In brachytherapy for prostate cancer, radioactive seeds are implanted in the prostate. The seeds might be titanium-encased pellets containing the radioisotope iodine-125. "Brachy-" is Greek for "short." The opposite of brachytherapy is teletherapy, treatment in which the radiation source is at a distance from the target.
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Radiotherapy in which the source of irradiation is placed close to the surface of the body or within a body cavity; e.g., application of radium to the cervix.
- high-dose-rate b. high-dose b. over time.
- interstitial b. radiotherapy by implantation of radioactive needles or other sources directly into and around the tissue to be irradiated.
- remote afterloading b. locally delivered radiotherapy that is loaded remotely into previously placed receptacles.
- stereotactic b. radiotherapy delivered with the help of CT-guided tissue localization.

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brachy·ther·a·py -'ther-ə-pē n, pl -pies radiotherapy in which the source of radiation is placed (as by implantation) in or close to the area being treated

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n.
radiotherapy administered by implanting radioactive wires or grains into or close to a tumour. This technique is used in the treatment of many accessible tumours (e.g. breast cancer) and is increasingly used in the treatment of localized prostate cancer. Intravascular brachytherapy has recently been used in the construction of radioactive metallic stent for arterial procedures, to delay or prevent restenosis.

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brachy·ther·a·py (brak″e-therґə-pe) in radiotherapy, treatment with ionizing radiation whose source is either implanted within the body, applied to the surface of the body, or located a short distance from the body area being treated; cf. teletherapy.

Medical dictionary. 2011.

Look at other dictionaries:

  • Brachytherapy — (from the Greek brachy , meaning short ), also known as sealed source radiotherapy or endocurietherapy, is a form of radiotherapy where a radioactive source is placed inside or next to the area requiring treatment. Brachytherapy is commonly used… …   Wikipedia

  • brachytherapy — n. radiotherapy administered by implanting radioactive wires or grains into or close to a tumour. This technique is used in the treatment of many accessible tumours (e.g. breast cancer) and is increasingly used in the treatment of localized… …   The new mediacal dictionary

  • brachytherapy — A type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor. Also called radiation brachytherapy, internal radiation therapy, and implant radiation therapy …   English dictionary of cancer terms

  • brachytherapy — noun Etymology: International Scientific Vocabulary Date: 1954 radiotherapy in which the source of radiation is placed (as by implantation) in or close to the area being treated …   New Collegiate Dictionary

  • brachytherapy — noun Radiotherapy using radioactive sources positioned within (or close to) the treatment volume …   Wiktionary

  • brachytherapy — n. radiotherapy in which the radioactive material or the source of radiation is placed directly into or close to the body or tumor …   English contemporary dictionary

  • brachytherapy — [ˌbrakɪ θɛrəpi] noun the treatment of cancer, especially prostate cancer, by the insertion of radioactive implants directly into the tissue …   English new terms dictionary

  • brachytherapy — brachy·the·ra·py …   English syllables

  • brachytherapy — /brækiˈθɛrəpi/ (say brakee theruhpee) noun a form of radiation treatment in which tiny pellets of radioactive material are implanted directly into the organ or tissues affected by the tumour; used for a range of cancers including those of the… …   Australian English dictionary

  • brachytherapy — ˌbrakēˈ ̷ ̷  ̷ ̷  ̷ ̷ noun Etymology: International Scientific Vocabulary brachy + therapy : radiotherapy in which the source of radiation is placed (as by implantation) in or close to the area being treated …   Useful english dictionary


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