megavoltage


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Related to megavoltage: megavoltage radiotherapy

megavoltage

 [meg´ah-vōl″taj]
in radiation therapy, voltage greater than 1 megavolt, as contrasted to orthovoltage and supervoltage.

meg·a·volt·age

(meg'ă-vol'tăj),
In radiation therapy, a term for voltage above one million volts.

megavoltage

/mega·vol·tage/ (-vōl″taj) in radiotherapy, voltage greater than 1 megavolt, in contrast to orthovoltage and supervoltage.

megavoltage

Voltage of greater than 1 megavolt.
References in periodicals archive ?
Physics innovation brought reliable megavoltage energy with the development of man-made cobalt and early linear accelerators, allowing the first meaningful way to address deep structures in the body.
In nature, only the megavoltage of a lightning bolt and the potent enzymes in some soil bacteria and fungi can split nitrogen molecules, says chemist Paul J.
They found that despite a 16 per cent increase in demand for treatment, megavoltage machines in clinical use for radiotherapy had only increased by 10 per cent.
Nahum, Water/air mass stopping power ratios for megavoltage photon and electron beams, Phys.
The 33 services include: computed tomography, magnetic resonance imaging, diagnostic and therapeutic radioisotope, positive emission tomography, ultrasonography, megavoltage radiation therapy, histocompatibility lab, neonatal intensive care, and trauma services.
Additionally, presentations will be delivered on the clinical benefits of exceptional treatment plan quality and accurate megavoltage CT-guided patient setup with the TomoTherapy System.
While dose escalation techniques with megavoltage EBRT have evolved greatly in recent years, rectal dose constraints limit the total dose of EBRT that can be administered.
Additionally, several abstracts focused on the systematic use of the TomoTherapy System's daily megavoltage computed tomography (MVCT) to ensure accurate patient set-up and to permit accurate calculation of delivered dose and sophisticated treatment plan adaptation.
Currently used dosages for external-beam megavoltage radiation therapy in birds have been extrapolated from mammalian patients and often appear to provide inadequate doses of radiation for effective tumor control.
Retrospective analysis of nasopharyngeal carcinoma treated during 1976-1985: Late complications following megavoltage irradiation.
All but one were treated with megavoltage equipment.
Jim Warrington, head of Radiotherapy Physics at The Royal Marsden Hospital, says, "With the potential to produce megavoltage X-ray treatments of the highest quality and efficiency available, we anticipate VMAT will offer us greater flexibility as a radiotherapy treatment option.