Clinical rationale for in vivo portal dosimetry in magnetic resonance guided online adaptive radiotherapy [PDF]
Physics and Imaging in Radiation Oncology, 2022 Background and purpose: In magnetic resonance guided online adaptive radiotherapy, the patient model used for plan adaptation and dose calculation is created online under stringent time constraints.
Begoña Vivas Maiques +3 more
doaj +2 more sources
Prediction of portal dosimetry quality assurance results using log files-derived errors and machine learning techniques [PDF]
Frontiers in Oncology, 2023 ObjectiveThis work aims to use machine learning models to predict gamma passing rate of portal dosimetry quality assurance with log file derived features.
Kah Seng Lew +6 more
doaj +2 more sources
Importance of beam-matching between truebeam stx and novalis tx in pre-treatment quality assurance using portal dosimetry [PDF]
Journal of Medical Physics, 2021 Flexibility and efficiency in a radiotherapy department with different linear accelerators (linacs) can be improved if they are dosimetrically equivalent, and there is no need of plan or patient-specific quality assurance (PSQA) modification.
José Alejandro Rojas-López +1 more
doaj +2 more sources
Multi-parametric Improvements in the CCD Camera-based EPID for Portal Dosimetry
Journal of Medical Signals and Sensors, 2017 Dosimetric verification of radiation treatment has recently been extended by the introduction of electronic portal imaging devices (EPIDs). Detailed dose response specifications of EPID should be addressed prior to any dosimetric application. The present
Vahideh Nazari +6 more
doaj +2 more sources
Lattice radiation therapy for canine sinonasal carcinoma: feasibility study of spatially fractionated radiotherapy using volumetric modulated arc therapy [PDF]
BMC Veterinary ResearchBackground Lattice radiotherapy (LRT) administers spatially fractionated doses to a tumor volume with the intent to induce beneficial anti-tumor host responses and avoid normal tissue damage.
Patricia Gualtieri +5 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
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
An Empirical Transmitted EPID Dosimetry Method using a Back-Projection Algorithm [PDF]
Journal of Biomedical Physics and Engineering, 2019 Background: The present study aimed to introduce a rapid transmission dosimetry through an electronic portal-imaging device (EPID) to achieve two-dimensional (2D) dose distribution for homogenous environments. Material and Methods: In this Phantom study,
S M Hashemi +8 more
doaj +1 more source