A Simple Method for 2-D In Vivo Dosimetry by Portal Imaging [PDF]
Technology in Cancer Research & Treatment, 2017 Purpose: To improve patient safety and treatment quality, verification of dose delivery in radiotherapy is desirable. We present a simple, easy-to-implement, open-source method for in vivo planar dosimetry of conformal radiotherapy by electronic portal imaging device (EPID).
Stefano Peca +2 more
openaire +6 more sources
Quantitative evaluation of the effect of anatomical changes on the results of in vivo dosimetry during radiation therapy in the thoracic region. [PDF]
J Appl Clin Med PhysAbstract Background Anatomical changes during thoracic radiation therapy can alter dose delivery and compromise accuracy. Electronic portal imaging device (EPID)‐based in vivo dosimetry (IVD) enables noninvasive monitoring of these changes during treatment. Purpose This study quantitatively evaluated the impact of EPID‐based IVD in volumetric modulated
Tanaka K, Komori M.
europepmc +2 more sources
On flattening filter-free portal dosimetry. [PDF]
J Appl Clin Med Phys, 2016 Varian introduced (in 2010) the option of removing the flattening filter (FF) in their C‐Arm linacs for intensity‐modulated treatments. This mode, called flattening filter‐free (FFF), offers the advantage of a greater dose rate. Varian's “Portal Dosimetry” is an electronic portal imager device (EPID)‐based tool for IMRT verification.
Pardo E +3 more
europepmc +4 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
Verification of IMRT and RapidArc Localized Prostate Cancer Treatment Plans Using EPID and Delta4 in vivo Dosimetry Methods [PDF]
Middle East Journal of Cancer, 2021 Background: Quality assurance for intensity modulated radiation therapy (IMRT) depends on the type of dosimetry system and its evaluation procedure. We can check both the intensity and distribution of each field as the required pretreatment verification ...
Moustafa Ahmed +4 more
doaj +1 more source
Journal of Medical Physics, 2023 Aim: The Mobius3D software addresses limitations lacking in measurement-based methods in patient-specific quality assurance (QA). The objective of this study was to validate its dosimetric performance against conventionally used portal dose measurements ...
Yasmine Joy M. Labagnoy +3 more
doaj +1 more source
Craniospinal irradiation by volumetric modulated arc therapy technique on halcyon
Journal of Radiation and Cancer Research, 2022 Aims: Craniospinal irradiation (CSI) is a challenging task on halcyon due to its field size constraint (28 cm × 28 cm). CSI was planned by volumetric modulated arc therapy (VMAT) technique on Halcyon (6MV) linac with no junction shift with multiple arcs ...
Shubhangi Barsing +3 more
doaj +1 more source
Overview of passive area dosimetry systems used in European countries [PDF]
, 2021 EURADOS Working Group 3 (WG3) aims at providing information about the correct measurement of the ambient dose equivalent, short H*(10), in the environment and has a specific subgroup (WG3-SG2) that focuses on passive environmental dosimetry.
Dombrowski, Harald +2 more
core +1 more source
The stability of liquid-filled matrix ionization chamber electronic portal imaging devices for dosimetry purposes. [PDF]
, 2004 This study was performed to determine the stability of liquid-filled matrix ionization chamber (LiFi-type) electronic portal imaging devices (EPID) for dosimetric purposes.
Tielenburg, R +15 more
core +5 more sources
EVALUATION STUDY FOR ELECTRONIC PORTAL IMAGER SYSTEM DEVICE (EPID) AS QUALITY ASSURANCE AND DOSIMETRY TOOL FOR MEDICAL LINEAR ACCELERATOR MACHINE [PDF]
Assiut University Journal of Multidisciplinary Scientific Research, 2020 Portal imager system now is widely attached as verification system in many models from linear accelerator due to may be used for treatment verification instead of film in as new ear for radiotherapy.
doaj +1 more source