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  1. Australasian Physics & Engineering Sciences in Medicine
  2. Australasian Physics & Engineering Sciences in Medicine : Volume 40
  3. Australasian Physics & Engineering Sciences in Medicine : Volume 40, Issue 2, June 2017
  4. Couch modelling for volumetric modulated arc therapy (VMAT)
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Australasian Physics & Engineering Sciences in Medicine : Volume 40
Australasian Physics & Engineering Sciences in Medicine : Volume 40, Issue 3, September 2017
Australasian Physics & Engineering Sciences in Medicine : Volume 40, Issue 2, June 2017
Both sides now: diagnostic imaging medical physics in two hemispheres
Gaming the impact factor: where who cites what, whom and when
Indices from lagged poincare plots of heart rate variability: an efficient nonlinear tool for emotion discrimination
Numerical model for healthy and injured ankle ligaments
Dosimetry in MARS spectral CT: TOPAS Monte Carlo simulations and ion chamber measurements
Risks and benefits of reducing target volume margins in breast tangent radiotherapy
Quantification of intrafraction prostate motion and its dosimetric effect on VMAT
EEG-based alpha neurofeedback training for mood enhancement
Expert system classifier for adaptive radiation therapy in prostate cancer
The effect of cement on hip stem fixation: a biomechanical study
Relative biological effectiveness in a proton spread-out Bragg peak formed by pencil beam scanning mode
A comparative evaluation of Ac225 vs Bi213 as therapeutic radioisotopes for targeted alpha therapy for cancer
High dose rate brachytherapy source measurement intercomparison
The impact of smart metal artefact reduction algorithm for use in radiotherapy treatment planning
Monte Carlo simulation of the RBE of I-131 radiation using DNA damage as biomarker
A neural controller for online laser power adjustment during the heat therapy process in the presence of nanoparticles
Multichannel interictal spike activity detection using time–frequency entropy measure
The abdominal radiation doses for paediatric patients undergoing X-ray examinations at southern Saudi Arabia
A pilot study on geometrical uncertainties for intra ocular cancers in radiotherapy
Corpuls cpr resuscitation device generates superior emulated flows and pressures than LUCAS II in a mechanical thorax model
Commissioning a hobby cutting device for radiochromic film preparation
Investigation of X-ray focal spot alignment using a jig of novel design
Technical note: real-time web-based wireless visual guidance system for radiotherapy
Couch modelling for volumetric modulated arc therapy (VMAT)
Winning images from the Photography in Medical Physics (PiMP) competition ( Australasian Physics & Engineering Sciences in Medicine , Volume 40 , Issue 2 )
Australasian Physics & Engineering Sciences in Medicine : Volume 40, Issue 1, March 2017
Australasian Physics & Engineering Sciences in Medicine : Volume 39
Australasian Physics & Engineering Sciences in Medicine : Volume 38
Australasian Physics & Engineering Sciences in Medicine : Volume 37
Australasian Physics & Engineering Sciences in Medicine : Volume 36
Australasian Physics & Engineering Sciences in Medicine : Volume 35
Australasian Physics & Engineering Sciences in Medicine : Volume 34
Australasian Physics & Engineering Sciences in Medicine : Volume 33
Australasian Physics & Engineering Sciences in Medicine : Volume 32
Australasian Physics & Engineering Sciences in Medicine : Volume 31
Australasian Physics & Engineering Sciences in Medicine : Volume 30
Australasian Physics & Engineering Sciences in Medicine : Volume 29
Australasian Physics & Engineering Sciences in Medicine : Volume 28
Australasian Physics & Engineering Sciences in Medicine : Volume 27
Australasian Physics & Engineering Sciences in Medicine : Volume 26
Australasian Physics & Engineering Sciences in Medicine : Volume 25
Australasian Physics & Engineering Sciences in Medicine : Volume 24

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Couch modelling for volumetric modulated arc therapy (VMAT)

Content Provider Springer Nature Link
Author Chyou, Te yu Lorenz, Friedlieb
Copyright Year 2017
Abstract 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, Sweden). The first was a simplistic model, with the relative electron densities (ED) of structures based entirely on CT Hounsfield units (HU). The second couch model was obtained by assigning the appropriate EDs to the relevant couch structures. Instead of getting EDs from the CT scan using the Hounsfield units to ED conversion, the second approach was to determine the optimal ED iteratively. The values accepted for the second couch model were the EDs that produced the best agreement between Monaco calculations and the measured couch attenuation. Finally, the performance of the two couch models in clinical prostate VMAT plans was compared.
Starting Page 471
Ending Page 480
Page Count 10
File Format PDF
ISSN 01589938
Journal Australasian Physics & Engineering Sciences in Medicine
Volume Number 40
Issue Number 2
e-ISSN 18795447
Language English
Publisher Springer Netherlands
Publisher Date 2017-06-08
Publisher Place Dordrecht
Access Restriction Subscribed
Subject Keyword Couch model Couch attenuation Carbon fiber Couch top Biomedicine Biological and Medical Physics, Biophysics Medical and Radiation Physics Biomedical Engineering
Content Type Text
Resource Type Article
Subject Radiology, Nuclear Medicine and Imaging Physics and Astronomy Biophysics Biomedical Engineering
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