from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Radiotherapy using a source of ionizing radiation at some distance from the patient, typically tens of centimetres.


from Wiktionary, Creative Commons Attribution/Share-Alike License

tele-, from Ancient Greek τῆλε (tele, "at a distance") + therapy, from Ancient Greek θεραπεία (therapeia, "attendance, treatment, healing, service").


  • International Isotopes Inc. manufactures a full range of nuclear medicine calibration and reference standards, high purity fluoride gases, and a variety of cobalt-60 products such as teletherapy sources.

    International Isotopes Inc. Announces Third Quarter and Nine Months 2010 Financial Results - Yahoo! Finance

  • Radiotherapy techniques such as teletherapy and brachytherapy have high cure rates in the treatment of cervical cancers.

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  • A patient may receive one or the other, or a combination of both External Beam Radiation Therapy (EBRT) or teletherapy denotes treatment of patient when the source of radiation lies outside the body.

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  • S K Srivastava, professor and head, radiation oncology at Tata Memorial Hospital, explains, “Oncology consists of treatment of patients in four different ways: surgical oncology involves a simple or complex procedure for removal of tumour, radiation oncology involves using radiation from the outside (teletherapy) or from close to the tumour (brachytherapy), medical oncology or chemotherapy employs chemicals that are injected or ingested, as well as biological therapy to intercept the pathway of tumour development. â€

    The Times of India

  • Types of radiation include gamma rays, produced by a radioisotope within a teletherapy unit; x-rays, electrons, protons, alpha particles (helium ions) and heavy charged ions, produced by particle acceleration; and neutrons and pi-mesons (pions), produced as secondary particles following bombardment of a target with a primary particle. "

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