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
Early clinical experience with varian halcyon V2 linear accelerator: Dual-isocenter IMRT planning and delivery with portal dosimetry for gynecological cancer treatments. [PDF]
J Appl Clin Med Phys, 2019 Kim H +5 more
europepmc +2 more sources
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
IMRT QA using machine learning: A multi-institutional validation. [PDF]
, 2017 PurposeTo validate a machine learning approach to Virtual intensity-modulated radiation therapy (IMRT) quality assurance (QA) for accurately predicting gamma passing rates using different measurement approaches at different institutions.MethodsA Virtual ...
Chan, Maria F +5 more
core +2 more sources
Novel methodologies for dosimetry audits: Adapting to advanced radiotherapy techniques
Physics and Imaging in Radiation Oncology, 2018 With new radiotherapy techniques, treatment delivery is becoming more complex and accordingly, these treatment techniques require dosimetry audits to test advanced aspects of the delivery to ensure best practice and safe patient treatment.This review of ...
Marlies Pasler +3 more
doaj +1 more source
Planar EPID-Based Dosimetry for SRS and SRT Patient-Specific QA
Life, 2021 The study’s purpose was to develop and validate Electronic Portal Imaging Device (EPID)-based dosimetry for Stereotactic Radiosurgery (SRS) and Stereotactic Radiation Therapy (SRT) patient-specific Quality Assurance (QA).
Sangutid Thongsawad +3 more
doaj +1 more source
A quality assurance phantom for electronic portal imaging devices [PDF]
, 2011 Electronic portal imaging device (EPID) plays an important role in radiation therapy portal imaging, geometric and dosimetric verification. Consistent image quality and stable radiation response is necessary for proper utilization that requires routine ...
Cao, Minsong +6 more
core +1 more source
A Large Area Pixelated Silicon Array Detector for Independent Transit In Vivo Dosimetry
Applied Sciences, 2022 A large area pixelated silicon array detector named “MP987” has been developed for in vivo dosimetry. The detector was developed to overcome the non-water equivalent response of EPID (Electronic Portal Imaging Device) dosimetry systems, due to the ...
Owen J. Brace +9 more
doaj +1 more source
Monte Carlo portal dosimetry [PDF]
Medical Physics, 2005 This project developed a solution for verifying external photon beam radiotherapy. The solution is based on a calibration chain for deriving portal dose maps from acquired portal images, and a calculation framework for predicting portal dose maps.
openaire +1 more source
Evaluation of HyperArc™ using film and portal dosimetry quality assurance
Physical and Engineering Sciences in Medicine, 2022 Abstract HyperArc™ is a stereotactic radiotherapy modality designed for targeting multiple brain metastases using a single isocenter with multiple non-coplanar arcs. The purpose of this study was to assess the efficacy of two patient specific quality assurance methods, film and the Varian Portal Dosimetry System with Varian’s HyperArc ...
Onno Kamst, Pushkar Desai
openaire +2 more sources