megavolt

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Related to megavoltage: megavoltage radiotherapy

megavolt

[′meg·ə‚vōlt]
(electricity)
A unit of potential difference or emf (electromotive force), equal to 1,000,000 volts. Abbreviated MV.
References in periodicals archive ?
Although a few reports have been published advocating the use of RT to treat avian neoplasms, results in previous clinical cases we have treated have suggested that birds are more resistant than mammals to megavoltage irradiation.
Patterns of failure in nasopharyngeal cancer treated with megavoltage irradiation.
Before the development of modern megavoltage x-ray capability, skin toxicity limited the doses that could be safely delivered to the breast.
12,13] Historically, these tumors have been thought to be radiation-resistant, although more recent reports suggest some success with megavoltage irradiation [14] and with combined chemotherapy and radiation.
Using different imaging protocols, (the HioArt system's) daily megavoltage CT imaging allows us to assess patterns of systematic and random deviations in head and neck cancer patients, and allow the repositioning of the patients before treatment," said Prof.
The topics specified by Varian technologists include new solutions for treatment planning, new technologies in brachytherapy, new ways of detecting targets on computed tomography and magnetic resonance images, designs for compact and low cost proton accelerators, and new target materials and designs for converting electron beams to megavoltage X-ray beams.
Methods: Between 1990 and 1995, 86 patients with brain metastases received external beam WBRT with a megavoltage beam at our center.
The company's latest advancement in ART, MVision([TM]), is Siemens' signature megavoltage cone beam (MVCB) IGRT solution, and is the first commercial implementation of cone beam technology utilizing a standard radiotherapy treatment beam.
MVision(TM) Megavoltage Cone Beam (MVCB) Imaging Package - a unique volumetric in-line target imaging solution for pelvic and other applications.
Also highlighted was the capability to deliver the treatment plans accurately and with guidance from fully integrated daily 3D megavoltage computed tomography (MVCT), reinforcing the flexibility of the TomoTherapy System to treat a wide array of radiotherapy needs.
Food and Drug Administration (FDA) has granted Siemens Medical Solutions 510(k) clearance for the MVision(TM) Megavoltage Cone Beam (MVCB) Imaging Package.
Petereit adds, "Image guidance using megavoltage CT's (MVCT's) as part of the TomoTherapy delivery system has changed the way we treat, monitor and alter radiation treatments.