Development of an Electronic Portal Imaging Device Dosimetry Method [PDF]
Diagnostics, 2021 Support arm backscatter and off-axis effects of an electronic portal imaging device (EPID) are challenging for radiotherapy quality assurance. Aiming at the issue, we proposed a simple yet effective method with correction matrices to rectify backscatter ...
Jun Zhang +4 more
doaj +6 more sources
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 +5 more sources
Radiotherapy delivery error detection with electronic portal imaging device (EPID)-based in vivo dosimetry [PDF]
Chinese Medical Journal, 2023 School of Physics, Beihang University, Beijing 102206, China; Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191, China; Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Medicine and ...
Xueying Yang +8 more
doaj +3 more sources
Clinical Efficacy of an Electronic Portal Imaging Device versus a Physical Phantom Tool for Patient-Specific Quality Assurance [PDF]
Life, 2022 Pre-treatment patient-specific quality assurance (QA) is critical to prevent radiation accidents. The electronic portal imaging device (EPID) is a dose measurement tool with good resolution and a low volume-averaging effect.
Seung-Hyeop Baek +6 more
doaj +3 more sources
Evaluation of Dose Distribution at the Level of Electronic Portal Imaging Device using Treatment Planning System [PDF]
Journal of Biomedical Physics and EngineeringBackground: Treatment Planning Systems (TPS) are designed to calculate dose distributions within the CT imaging field of view. However, the Electronic Portal Imaging Device (EPID) is positioned outside this area, making it challenging to use standard TPS
Amene Bagheri +6 more
doaj +3 more sources
Evaluation of Perkin Elmer Amorphous Silicon Electronic Portal Imaging Device for Small Photon Field Dosimetry [PDF]
Journal of Biomedical Physics and EngineeringBackground: Electronic portal imaging devices (EPIDs) are applied to measure the dose and verify patients’ position.Objective: The present study aims to evaluate the performance of EPID for measuring dosimetric parameters in small photon fields.Material ...
Mohammad Haghparast +4 more
doaj +3 more sources
A method for in vivo treatment verification of IMRT and VMAT based on electronic portal imaging device [PDF]
Radiation Oncology, 2021 Background Intensity-modulated radiation therapy (IMRT) and volume-modulated arc therapy (VMAT) are rather complex treatment techniques and require patient-specific quality assurance procedures.
Jun Zhang +7 more
doaj +3 more sources
Experience with remote electronic portal imaging device-based dosimetric auditing for static and rotational intensity modulated radiotherapy [PDF]
Physics and Imaging in Radiation OncologyThe aim of this work was to evaluate results of a remote electronic portal imaging based dosimetric auditing method using Task-Group 218 clinical gamma evaluation criteria (3%,2 mm, 10% dose threshold).
Peter B. Greer +2 more
doaj +3 more sources
Commissioning and Evaluation of an Electronic Portal Imaging Device-Based In-Vivo Dosimetry Software. [PDF]
Cureus, 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 ...
Held M +4 more
europepmc +5 more sources
Setup in a clinical workflow and impact on radiotherapy routine of an in vivo dosimetry procedure with an electronic portal imaging device. [PDF]
PLoS ONE, 2018 High conformal techniques such as intensity-modulated radiation therapy and volumetric-modulated arc therapy are widely used in overloaded radiotherapy departments.
Jie Li +9 more
doaj +3 more sources