Results 31 to 40 of about 66,716 (273)

Clinical performance of FractionLab in patient-specific quality assurance for intensity-modulated radiotherapy: a retrospective study [PDF]

open access: yesJournal 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]

open access: yesIranian 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

Evaluation of Patient Set Up Errors in Head and Neck Three-Dimensional (3D) Conformal and Intensity-Modulated Radiotherapy Using Electronic Portal Imaging Device [PDF]

open access: yesIranian 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

Evaluation of Set-Up Errors and Set-Up Margin in Three-Dimensional Conformal Radiotherapy for Pelvic Tumours by Using Electronic Portal Imaging Device

open access: yesKDU journal of multidisciplinary studies, 2022
A set-up error is defined as any deviation between the predetermined and actual treatment positions, and is determined by measuring the displacement of the treatment field position by comparing the treatment image to its reference image.
V. Ramanathan   +3 more
semanticscholar   +1 more source

A review of electronic portal imaging devices (EPIDs) [PDF]

open access: yesMedical 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

Daily dosimetric quality control of the MM50 Racetrack Microtron using an electronic portal imaging device [PDF]

open access: yes, 1995
The MM50 Racetrack Microtron, suited for advanced three-dimensional conformal radiotherapy techniques, is a complex machine in various respects. Therefore, for a number of gantry angles, daily quality control of the absolute output and fluence profiles ...
Dirkx, M.L.P. (Maarten)
core   +5 more sources

A High-Throughput In Vitro Radiobiology Platform for Megavoltage Photon Linear Accelerator Studies

open access: yesApplied Sciences, 2022
We designed and developed a multiwell tissue culture plate irradiation setup, and intensity modulated radiotherapy plans were generated for 96-, 24-, and 6-well tissue culture plates.
Kamalram Thippu Jayaprakash   +6 more
doaj   +1 more source

A remote EPID-based dosimetric TPS-planned audit of centers for clinical trials: outcomes and analysis of contributing factors

open access: yesRadiation Oncology, 2018
Background A novel remote method for external dosimetric TPS-planned auditing of intensity modulated radiotherapy (IMRT) and volumetric modulated arc therapy (VMAT) for clinical trials using electronic portal imaging device (EPID) has been developed. The
Narges Miri   +7 more
doaj   +1 more source

Mechanism of droplet-formation in a supersonic microfluidic spray device [PDF]

open access: yes, 2020
Spray drying is an approach employed in automotive, food, and pharmaceutical industries as a robust and cost efficient liquid atomization technique offering direct control over droplet dimensions.
Charmet, Jérôme   +7 more
core   +1 more source

Physical characteristics of a commercial electronic portal imaging device [PDF]

open access: yesMedical Physics, 1996
An electronic portal imaging device (EPID) for use in radiotherapy with high energy photons has been under development since 1985 and has been in clinical use since 1988. The x-ray detector consists of a metal plate/fluorescent screen combination, which is monitored by a charge-coupled device (CDD)-camera.
V G, Althof   +5 more
openaire   +3 more sources

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