Results 31 to 40 of about 10,990 (209)
Investigating the electronic portal imaging device for small radiation field measurements
Journal of Medical Physics, 2017 Purpose: With the advent of state-of-the-art treatment technologies, the use of small fields has increased, and dosimetry in small fields is highly challenging.
Arpita Agarwal +5 more
doaj +1 more source
Evaluation of Daily CT for EPID-Based Transit In Vivo Dosimetry
Frontiers in Oncology, 2021 PurposeThe difference in anatomical structure and positioning between planning and treatment may lead to bias in electronic portal image device (EPID)-based in vivo dosimetry calculations. The purpose of this study was to use daily CT instead of planning
Bin Feng +20 more
doaj +1 more source
Radiation Oncology, 2018 Background The demand for dose verification during treatment has risen with the increasing use of intensity-modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) in modern radiation therapy.
So-Yeon Park +4 more
doaj +1 more source
Fricke and polymer gel 2D dosimetry validation using Monte Carlo simulation [PDF]
, 2016 Complexity in modern radiotherapy treatments demands advanced dosimetry systems for quality control. These systems must have several characteristics, such as high spatial resolution, tissue equivalence, three-dimensional resolution, and dose-integrating ...
Chacón Obando, D. +12 more
core +1 more source
Commissioning and Evaluation of an Electronic Portal Imaging Device-Based In-Vivo Dosimetry Software. [PDF]
, 2018 This study reports on our experience with the in-vivo dose verification software, EPIgray® (DOSIsoft, Cachan, France). After the initial commissioning process, clinical experiments on phantom treatments were evaluated to assess the level of accuracy of ...
Cheung, Joey +4 more
core +2 more sources
Physics and Imaging in Radiation Oncology, 2019 Electronic portal imaging device-based in vivo dosimetry with a commercial product was performed for 10 prostate cancer patients treated with an air-filled endorectal balloon.
Bo Sterckx +2 more
doaj +1 more source
Brazilian Journal of Radiation Sciences, 2017 The aim of this work was to implement a simple algorithm to evaluate isocenter dose in a phantom using the back-projected transmitted dose acquired using an Electronic Portal Imaging Device (EPID) available in a Varian Trilogy accelerator with two ...
Thiago Bernardino da Silveira +2 more
doaj +1 more source
Software tool for portal dosimetry research
Australasian Physics & Engineering Sciences in Medicine, 2008 This paper describes a software tool developed for research into the use of an electronic portal imaging device (EPID) to verify dose for intensity modulated radiation therapy (IMRT) beams. A portal dose image prediction (PDIP) model that predicts the EPID response to IMRT beams has been implemented into a commercially available treatment planning ...
Vial, P. +4 more
openaire +3 more sources
A systematic review of methods to immobilise breast tissue during adjuvant breast irradiation [PDF]
, 2013 Greater use of 3D conformal, Intensity Modulated Radiotherapy (IMRT) and external beam partial breast irradiation following local excision (LE) for breast cancer has necessitated a review of the effectiveness of immobilisation methods to stabilise breast
Barrett-Lennard +48 more
core +1 more source
Use of Amorphous Silicon (ASi) Electronic Portal Imaging Devices for Other applications for Linear Accelerator Quality Assurance [PDF]
Iranian Journal of Medical Physics, 2021 Introduction: The success of radiation therapy depends critically on the accuracy of patient alignment in treatment position day after day. The primary use for Electronic portal imaging devices (EPIDs) is to monitor patient position during daily ...
Gena Mohamed +3 more
doaj +1 more source