Journal of Medical Physics, 2017 Aims: This study investigates the impact of cine acquisition mode on the dosimetric characteristics of a Varian aS500 amorphous silicon electronic portal imaging device (a-Si EPID).
Omemh Bawazeer +4 more
doaj +2 more sources
Japanese Journal of Radiological Technology, 2012 A simple method for improving the quality of electronic portal imaging device (EPID) portal images was proposed for the reduction of the burden on the registration between digital reconstruction radiography (DRR) and EPID portal images in radiation therapy.
Masaki Ohkubo
exaly +4 more sources
Investigation of the mechanical performance of Siemens linacs components during arc: gantry, MLC, and electronic portal imaging device [PDF]
Medical Devices: Evidence and Research, 2015 Pejman Rowshanfarzad,1 Peter Häring,2 Hans L Riis,3 Sune J Zimmermann,3 Martin A Ebert1,4 1School of Physics, The University of Western Australia, Crawley, WA, Australia; 2German Cancer Research Center (DKFZ), Medical Physics in Radiation Oncology ...
Rowshanfarzad P +4 more
doaj +2 more sources
Journal of Medical Physics, 2015 As complex treatment techniques such as intensity modulated radiotherapy (IMRT) entail the modeling of rounded leaf-end transmission in the treatment planning system, it is important to accurately determine the dosimetric leaf gap (DLG) value for a ...
S Timothy Peace Balasingh +4 more
doaj +2 more sources
Clinical performance of FractionLab in patient-specific quality assurance for intensity-modulated radiotherapy: a retrospective study [PDF]
Journal of Yeungnam Medical Science, 2022 Background This study was aimed at comparing and analyzing the results of FractionLab (Varian/Mobius Medical System) with those of portal dosimetry that uses an electronic portal imaging device.
Se An Oh +4 more
doaj +1 more source
Development of Artificial Intelligence as a Conversion Tool for Cine Electronic Portal Imaging Device Images to Radiotherapy Dosimetry: Preliminary Study [PDF]
Iranian Journal of Medical Physics, 2022 Introduction: This research is a preliminary study of the development of Artificial Intelligence (AI) as a conversion tool from the pixel value of Cine a-Si 1000 Electronic Portal Imaging Device (EPID) images to dose.
Muhammad Ramadhan +2 more
doaj +1 more source
Quality assurance of geometric accuracy based on an electronic portal imaging device and log data analysis for Dynamic WaveArc irradiation. [PDF]
J Appl Clin Med Phys, 2018 Hirashima H +5 more
europepmc +2 more sources
A review of electronic portal imaging devices (EPIDs) [PDF]
Medical Physics, 1992 On‐line electronic portal imaging devices are beginning to come into clinical service in support of radiotherapy. A variety of technologies are being explored to provide real‐time or near real‐time images of patient anatomy within x‐ray fields during treatment on linear accelerators.
Boyer, Arthur L. +7 more
openaire +4 more sources
The dose response relationship of a liquid-filled electronic portal imaging device [PDF]
, 1996 To use a liquid-filled portal imaging device (EPID) for transmission dosimetry, it is necessary to understand its dosimetric properties. Therefore, the relation between the pixel values (i.e., ionization currents) of an electronic portal imaging device ...
Mijnheer, B. J. +2 more
core +5 more sources
Evaluation of Patient Set Up Errors in Head and Neck Three-Dimensional (3D) Conformal and Intensity-Modulated Radiotherapy Using Electronic Portal Imaging Device [PDF]
Iranian Journal of Medical Physics, 2022 Introduction: Interfractional set-up variations may cause deviation of the delivered dose from the planned dose distribution. This study aimed at calculating random and systematic set-up errors using an electronic portal imaging device (EPID) to set the ...
Alireza Farajollahi +6 more
doaj +1 more source