文档介绍：Radiotherapy and Oncology 95 (2010) 142–148
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Radiotherapy and Oncology
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Volumetric modulated arc therapy
Single Arc Volumetric Modulated Arc Therapy of head and neck cancer
Anders Bertelsen a,b,*, Christian R. Hansen b, Jørgen Johansen c, Carsten Brink a,b
a Institute of Clinical Research, University of Southern Denmark, Odense, Denmark; b Laboratory of Radiation Physics; and c Department of Oncology, Odense University Hospital,
Odense, Denmark
article info abstract
Article history: Background: The quality of Volumetric Modulated Arc Therapy (VMAT) plans is highly dependent on the
Received 24 August 2009 performance of the optimization algorithm used. Recently new algorithms have e available which
Received in revised form 14 January 2010 are capable of generating VMAT plans for Elekta accelerators. The VMAT algorithm in Pinnacle3Ò is named
Accepted 17 January 2010
SmartArc and its capability to generate treatment plans for head and neck cancer was tested.
Available online 24 February 2010
Methods: Twenty-five patients with oropharyngeal or hypopharyngeal carcinoma, previously treated
with IMRT by means of Pinnacle3Ò and Elekta accelerators, were replanned with single arc VMAT. The
Keywords:
VMAT planning objectives were to achieve clinical target coverage and sparing of ans at risk
Volumetric M