All patients were treated by VMAT
due to lowto intermediate-risk (on the basis of the National Comprehensive Cancer Network) prostate cancer.
The parotid glands, cochlea and optic apparatus were also contoured as critical structures since IMRT and VMAT
is used and dose sparing may be possible.
Volumetric-modulated arc therapy (VMAT
) is an innovative form of IMRT optimization that allows the radiation dose to be efficiently delivered using a dynamic modulated arc.
It also includes functionality such as RaySearch's market-leading algorithms for IMRT and VMAT
optimization and highly accurate dose engines for photon, electron and proton and carbon ion therapy.
"Until we installed TrueBeam we only offered our patients 3D conformal treatments but we are now able to routinely offer RapidArc image-guided VMAT
treatments for all prostate cancer patients.
With RayStation 4.0 the tool for Multi-criteria optimization is extended with support for creating VMAT
treatments in addition to IMRT.
(AW) 533 CHU LAI/IWAKUNI 1969-70 May 31-June 3, 2013, Las Vegas.
New Technologies like IMRT, IGRT and Arc Therapy (VMAT
) which are effectively used to reduce the side effects of radiotherapy will also be discussed.
1995), whereas pharmacologic inhibition of the vesicular monoamine transporter (VMAT
) has little or no consequences on DA overflow in striatal slices (Jones et al.
On the basis of radiations delivered, the external beam radiotherapy is sub segmented into intensity-modulated radiation therapy (IMRT), image guided radiotherapy (IGRT), tomotherapy, stereotactic technology, 3D conformal radiotherapy, proton beam therapy, and volumetric modulated arc therapy (VMAT
Background: Volumetric-modulated arc therapy (VMAT
) can only be implemented on the new generation linacs such as the Varian Trilogy[sup][R] and Elekta Synergy[sup][R].