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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

meg·a·volt·age

(meg'ă-vol'tăj),
In radiation therapy, a term for voltage above one million volts.
Farlex Partner Medical Dictionary © Farlex 2012

megavoltage

Voltage of greater than 1 megavolt.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
For the entire world, North America has about 26 per cent of the entire world megavoltage external beam machines, Asia 27 per cent, Latin America and Caribbean 34 per cent; Europe 34 per cent and Africa has only two per cent of the megavoltage external beam machines in the world.
treated HeLa tumor cells with various common low energy levels of orthovoltage X-rays and megavoltage gamma-rays (Co-60) to study the cell killing efficacy in the presence of folate modified GNPs and nonfunctionalized GNPs.
Reference [6] reports on two commercial optical sensors (surface imaging systems) and compares them with the actual adjustments in patient positions made on the basis of megavoltage CT scans.
The targets position was checked comparing the megavoltage portal images produced by two perpendicular square open beams at 0[degrees] (anteroposterior) and 90[degrees] (lateral) with the corresponding digitally reconstructed radiography of the same beams generated by the treatment planning system (TPS).
The energy dependence and dose response of a commercial optically stimulated luminescent detector for kilovoltage photon, megavoltage photon and electron, proton and carbon beams.
Megavoltage irradiation in the treatment of gliomas of the brain and spinal cord.
Esophageal toxicity became apparent after the advent of megavoltage radiation therapy and was first described in humans in the mid 1950.
It's no exotic megavoltage Bond spree, but a not dissimilar trail of telltale glitches appears: the dog is here, then isn't; the car gets washed, but later it's dirty; the click of a door, the drip of a faucet, the sound of child quietly crying at night.
Calculation of anylitical expressions for measured percentage depth dose data in megavoltage photon therapy.
Use of megavoltage computed tomography with image registration for high-dose rate treatment planning of an oral tongue cancer using a custom oral mold applicator with embedded lead shielding.
Evans, "A linear array scintillation crystal-photodiode detector for megavoltage imaging," Medical Physics, vol.
Mackie, "Megavoltage CT on a tomotherapy system," Physics in Medicine and Biology, vol.