Correlation of phantom‐based and log file patient‐specific QA with complexity scores for VMAT

CE Agnew, DM Irvine… - Journal of applied clinical …, 2014 - Wiley Online Library
The motivation for this study was to reduce physics workload relating to patient‐specific
quality assurance (QA). VMAT plan delivery accuracy was determined from analysis of pre …

Validation of a method for in vivo 3D dose reconstruction for IMRT and VMAT treatments using on‐treatment EPID images and a model‐based forward‐calculation …

E Van Uytven, T Van Beek, PM McCowan… - Medical …, 2015 - Wiley Online Library
Purpose: Radiation treatments are trending toward delivering higher doses per fraction
under stereotactic radiosurgery and hypofractionated treatment regimens. There is a need …

Automating linear accelerator quality assurance

T Eckhause, H Al‐Hallaq, T Ritter, J DeMarco… - Medical …, 2015 - Wiley Online Library
Purpose: The purpose of this study was 2‐fold. One purpose was to develop an automated,
streamlined quality assurance (QA) program for use by multiple centers. The second …

An in vivo dose verification method for SBRT–VMAT delivery using the EPID

PM McCowan, E Van Uytven, T Van Beek… - Medical …, 2015 - Wiley Online Library
Purpose: Radiation treatments have become increasingly more complex with the
development of volumetric modulated arc therapy (VMAT) and the use of stereotactic body …

Application of TG‐100 risk analysis methods to the acceptance testing and commissioning process of a Halcyon linear accelerator

PT Teo, MS Hwang, W Shields, P Kosterin… - Medical …, 2019 - Wiley Online Library
Purpose A new type of linear accelerator (linac) was recently introduced into the market by a
major manufacturer. Our institution is one of the early users of this preassembled and …

A model-based 3D patient-specific pre-treatment QA method for VMAT using the EPID

PM McCowan, G Asuni, T Van Beek… - Physics in Medicine …, 2017 - iopscience.iop.org
This study reports the development and validation of a model-based, 3D patient dose
reconstruction method for pre-treatment quality assurance using EPID images. The method …

Frame average optimization of cine‐mode EPID images used for routine clinical in vivo patient dose verification of VMAT deliveries

PM McCowan, BMC McCurdy - Medical Physics, 2016 - Wiley Online Library
Purpose: The in vivo 3D dose delivered to a patient during volumetric modulated arc therapy
(VMAT) delivery can be calculated using electronic portal imaging device (EPID) images …

A Swiss cheese error detection method for real‐time EPID‐based quality assurance and error prevention

M Passarge, MK Fix, P Manser… - Medical …, 2017 - Wiley Online Library
Purpose To develop a robust and efficient process that detects relevant dose errors (dose
errors of≥ 5%) in external beam radiation therapy and directly indicates the origin of the …

An electronic portal image device (EPID)‐based multiplatform rapid daily LINAC QA tool

Y Ma, X Wang, R Mai, T Wang, Y Pei… - Journal of Applied …, 2021 - Wiley Online Library
Purpose To develop an efficient and economic daily quality research tool (DQRT) for daily
check of multiplatform linear accelerators (LINACs) with flattening filter (FF) and flattening …

An EPID‐based system for gantry‐resolved MLC quality assurance for VMAT

BJ Zwan, MP Barnes, T Fuangrod… - Journal of applied …, 2016 - Wiley Online Library
Multileaf collimator (MLC) positions should be precisely and independently measured as a
function of gantry angle as part of a comprehensive quality assurance (QA) program for …