• WordNet 3.6
    • n radiotherapy (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
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Webster's Revised Unabridged Dictionary
    • n Radiotherapy (Med) Treatment of disease by means of x-rays or radioactivity. Radiotherapy of cancer is based on the fact that cancer cells are more sensitive to radiation than most other cells in the body.
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Century Dictionary and Cyclopedia
    • n radiotherapy Treatment of disease by any of the forms of radioactivity. This term has been applied more particularly to methods of treatment in which the Rontgen rays are employed, but since the discovery of the Becquerel rays and of the possibility of their use in the treatment of disease, the term has been extended to include the therapeutic use of radioactive substances as well as X-rays. The value of the Rontgen rays has become firmly established for certain affections of the skin, such as epithelioma, rodent ulcer, mycosis fungoides acne, keloid and hypertrophic scars, chronic eczema, obstinate ringworm of the scalp, etc. Radium and other radioactive substances have more recently been employed for the same purposes as the X-rays. Their effects seem to be practically the same, though they have not yet been used in therapeutics a sufficient length of time to determine their relative value as compared with the Röntgen rays. The fact that tubes of radium can be introduced into cavities where it is not practicable to employ the X-rays has enabled this substance to be used with benefit in certain cases of stricture of the esophagus or rectum. The cathode ray has been suggested as a substitute for radium, which, by reason of its great cost, is of very restricted application. The X-rays have also been employed in the treatment of leucemia, with apparent benefit in certain cases.
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Webster's Revised Unabridged Dictionary
Radio-, + therapy,


In news:

It's called intravascular radiotherapy and it's coming up with positive results.
Adjuvant external-beam radiotherapy in patients with high-risk well- differentiated thyroid cancer.
Will Hypofractionated Radiotherapy Negatively Affect Cancer Centers or Be a Godsend in the New Health Care Environment.
RapidArc super-fast, super-accurate radiotherapy systems prove their worth at The Harley Street Clinic in central London.
First Cancer Patients in Southern Hemisphere Receive Treatment with Elekta's Agility Beam-shaping Innovation for Radiotherapy.
Stereotactic Radiotherapy Slows Cancer Progression For Inoperable Patients.
Cuts to radiotherapy payments under the proposed 2013 Medicare Physician Fee Schedule would cost US$300 million, shutting cancer centres and putting cancer patients at risk, radiation oncologists tell The Lancet Oncology.
Hugo Chavez back in Cuba for radiotherapy .
Adjuvant external-beam radiotherapy in patients with high-risk well-differentiated thyroid cancer.
Radiotherapy -associated euthyroid Graves ophthalmopathy following floor-of-mouth surgery: A case report.
Mercy Medical Center is the first in the state and one of 35 sites in the country offering intraoperative radiotherapy .
Avoidance of the stem-cell area during targeted radiotherapy may allow better.
Sensus Healthcare Awarded Sole Contract for Superficial Radiotherapy.
The 74-year-old Brown is receiving a short course of conventional radiotherapy for "localized prostate cancer," the statement said.
Brown 's spokesman Gil Duran declined to provide details about when the governor was diagnosed, what form of radiotherapy he is receiving and the stage of his cancer.

In science:

From time to time we teach a one week intensive course ‘Techniques of Proton Radiotherapy’ to persons involved in the design, upgrade or maintenance of proton radiotherapy facilities, or otherwise interested.
Techniques of Proton Radiotherapy: Transport Theory
The term ‘mass scattering power’ was introduced by Brahme who was also an early user of FE theory in radiotherapy (electrons).
Techniques of Proton Radiotherapy: Transport Theory
Years later Andy told me the journal (he could not remember which one) had deemed proton radiotherapy of insufficient general interest.
Techniques of Proton Radiotherapy: Transport Theory
In radiotherapy, Fermi-Eyges theory was first used with electron beams.
Techniques of Proton Radiotherapy: Transport Theory
However, protons came to radiotherapy from the high-energy world where (also paradoxically) Fermi-Eyges theory is not so well known.
Techniques of Proton Radiotherapy: Transport Theory