Publications by authors named "Jonathan R Sykes"

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A statistical, voxelised model of prostate cancer for biologically optimised radiotherapy.
Robert N Finnegan, Hayley M Reynolds, Martin A Ebert, Yu Sun, Lois Holloway, Jonathan R Sykes

Phys Imaging Radiat Oncol· January 2022

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A novel method to determine linac mechanical isocenter position and size and examples of specific QA applications.
Jacek M Chojnowski, Jonathan R Sykes, David I Thwaites

J Appl Clin Med Phys· July 2021

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Towards zero radiation isocentre size: minimising radiation beam isocentricity on Elekta linear accelerators by means of optimising look-up tables.
Jacek M Chojnowski, Jonathan R Sykes, David I Thwaites

Phys Eng Sci Med· June 2021

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Practical beam steering of X-ray beams on Elekta accelerators: The effect of focal spot alignment on beam (symmetry and position) and radiation isocentre (size and position).
Jacek M Chojnowski, Jonathan R Sykes, David I Thwaites

Phys Eng Sci Med· December 2020

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An international survey on the clinical use of rigid and deformable image registration in radiotherapy.
Johnson Yuen, Jeffrey Barber, Anna Ralston, Alison Gray, Amy Walker, Jonathan R Sykes

J Appl Clin Med Phys· October 2020

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Assessment of error in the MV radiation isocenter position calculated with the Elekta XVI software.
Jacek M Chojnowski, George B Warr, Jonathan R Sykes, David I Thwaites

J Appl Clin Med Phys· May 2020

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Assessing the dependency of the uncertainties in the Elekta Agility MLC calibration procedure on the focal spot position.
Jacek M Chojnowski, Lee M Taylor, Jonathan R Sykes, David I Thwaites

Australas Phys Eng Sci Med· December 2019

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Changes in Brain Metastasis During Radiosurgical Planning.
Alison L Salkeld, Eric K C Hau, Najmun Nahar, Jonathan R Sykes, Wei Wang

Int J Radiat Oncol Biol Phys· November 2018

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Beam focal spot position determination for an Elekta linac with the Agility head; practical guide with a ready-to-go procedure.
Jacek M Chojnowski, Lee M Taylor, Jonathan R Sykes, David I Thwaites

J Appl Clin Med Phys· July 2018

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Beam focal spot position: The forgotten linac QA parameter. An EPID-based phantomless method for routine Stereotactic linac QA.
Jacek M Chojnowski, Michael P Barnes, Jonathan R Sykes, David I Thwaites

J Appl Clin Med Phys· September 2017

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Comparison of automatic image registration uncertainty for three IGRT systems using a male pelvis phantom.
Jeffrey Barber, Jonathan R Sykes, Lois Holloway, David I Thwaites

J Appl Clin Med Phys· September 2016

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Volumetric and dosimetric changes to salivary glands during radiotherapy for head and neck cancer.
Maria Najim, Lakmalie Perera, Louise Bendall, Jonathan R Sykes, Val Gebski

Acta Oncol· July 2016

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Performance evaluation of head and neck contour adaptation with cone beam CT using two commercial software systems.
Louise S H Bendall, Maria Najim, Rachel Stensmyr, Emily Flower, Shan Yau, Jonathan R Sykes

Acta Oncol· July 2016

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Alterations in anatomic and functional imaging parameters with repeated FDG PET-CT and MRI during radiotherapy for head and neck cancer: a pilot study.
Manil Subesinghe, Andrew F Scarsbrook, Steven Sourbron, Daniel J Wilson, Garry McDermott, Jonathan R Sykes

BMC Cancer· March 2015

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X-ray volume imaging in bladder radiotherapy verification.
Ann M Henry, Julia Stratford, Claire McCarthy, Julie Davies, Jonathan R Sykes

Int J Radiat Oncol Biol Phys· March 2006

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A feasibility study for image guided radiotherapy using low dose, high speed, cone beam X-ray volumetric imaging.
Jonathan R Sykes, Ali Amer, Jadwiga Czajka, Christopher J Moore

Radiother Oncol· October 2005

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