Results 191 to 200 of about 15,485 (236)

Lattice radiation therapy for canine sinonasal carcinoma: feasibility study of spatially fractionated radiotherapy using volumetric modulated arc therapy. [PDF]

BMC Vet Res
Gualtieri P, Prebble A, Martin T, Griffin RJ, Boss MK, Leary D.   +5 more
europepmc   +1 more source

Evaluating volumetric modulated arc therapy planning efficiency and dosimetric impact on non-contoured organ at risk in whole brain radiotherapy: a focus on oral cavity dose distribution. [PDF]

Rev Assoc Med Bras (1992)
Halis H, Akbayırlı U.
europepmc   +1 more source

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Clinical Applications of Volumetric Modulated Arc Therapy

International Journal of Radiation Oncology Biology Physics, 2010
To present treatment planning case studies for several treatment sites for which volumetric modulated arc therapy (VMAT) could have a positive impact; and to share an initial clinical experience with VMAT for stereotactic body radiotherapy (SBRT).Four case studies are presented to show the potential benefit of VMAT compared with conformal and intensity-
Martha M Matuszak, Di Yan, Inga Grills
exaly   +3 more sources

Choreographing Couch and Collimator in Volumetric Modulated Arc Therapy

International Journal of Radiation Oncology Biology Physics, 2011
To design and optimize trajectory-based, noncoplanar subarcs for volumetric modulated arc therapy (VMAT) deliverable on both Varian TrueBEAM system and traditional accelerators; and to investigate their potential advantages for treating central nervous system (CNS) tumors.To guide the computerized selection of beam trajectories consisting of ...
Pengpeng Zhang, M Chan, Gig Mageras
exaly   +3 more sources

Single Arc Volumetric Modulated Arc Therapy of head and neck cancer

Radiotherapy and Oncology, 2010
The quality of Volumetric Modulated Arc Therapy (VMAT) plans is highly dependent on the performance of the optimization algorithm used. Recently new algorithms have become available which are capable of generating VMAT plans for Elekta accelerators. The VMAT algorithm in Pinnacle is named SmartArc and its capability to generate treatment plans for head
Anders Bertelsen, Christian Rønn Hansen, Jørgen Johansen   +2 more
exaly   +4 more sources

Helical Volumetric Modulated Arc Therapy for Treatment of Craniospinal Axis

International Journal of Radiation Oncology Biology Physics, 2012
Volumetric modulated arc therapy (VMAT) can be used with multiple isocenters to provide an effective treatment of the craniospinal axis. Additional efficiency can be achieved by simultaneously applying linear couch motion to generate a helical arc trajectory.
James L Bedford, Young K Lee, Alan P Warrington   +2 more
exaly   +3 more sources

Modulation indices for volumetric modulated arc therapy

Physics in Medicine and Biology, 2014
The aim of this study is to present a modulation index (MI) for volumetric modulated arc therapy (VMAT) based on the speed and acceleration analysis of modulating-parameters such as multi-leaf collimator (MLC) movements, gantry rotation and dose-rate, comprehensively.
Jong Min, Park, So-Yeon, Park, Hyoungnyoun, Kim, Jin Ho, Kim, Joel, Carlson, Sung-Joon, Ye   +5 more
openaire   +2 more sources

Commissioning of Volumetric Modulated Arc Therapy (VMAT)

International Journal of Radiation Oncology*Biology*Physics, 2009
Volumetric modulated arc therapy (VMAT) involves the simultaneous use of dynamic multileaf collimator (DMLC) techniques and gantry arcing; appropriate quality assurance is therefore required. This article describes the development and implementation of procedures for commissioning VMAT on a commercial linear accelerator (Elekta PreciseBeam VMAT with ...
James L, Bedford, Alan P, Warrington
openaire   +2 more sources

Intensity-modulated radiotherapy, coplanar volumetric-modulated arc, therapy, and noncoplanar volumetric-modulated arc therapy in, glioblastoma: A dosimetric comparison

Clinical Neurology and Neurosurgery, 2019
Advanced techniques such as volumetric-modulated arc therapy (VMAT) may reduce radiation damage and improve the quality of life for patients.We performed a study comparing dose distributions to the planning target volumes(PTVs) and other organs at risk (OARs) of intensity-modulated radiotherapy (IMRT),coplanar VMAT (coVMAT), and non-coplanar VMAT ...
Yong Hou, Yan Zhang, Zhen Liu, Lili Yv, Kun Liu, Xiufang Tian, Yajuan Lv   +6 more
openaire   +2 more sources

Couch modelling for volumetric modulated arc therapy (VMAT)

Australasian Physical & Engineering Sciences in Medicine, 2017
The aim of this work was to investigate the impact of the accuracy of a certain couch model on the overall accuracy of the dose calculation. For this purpose two models of the Varian Exact Couch (Varian Medical Systems, Palo Alto, CA, USA) for use in the planning of volumetric modulated arc therapy (VMAT) were created in Monaco 5.1 (Elekta, Stockholm ...
Te-yu Chyou, Friedlieb Lorenz
openaire   +2 more sources