Results 31 to 40 of about 7,743 (226)

Evaluation of an Electronic Portal Imaging Device for Transit Dosimetry [PDF]

Acta Oncologica, 1999
The possibility of using a commercially available electronic portal imaging device for transit dosimetry was investigated. The detection unit of the device comprises a metal plate/fluorescence screen and a camera. Basic parameters of this system were investigated: stability, detector uniformity, dose-response curve, field-size dependence and phantom ...
X, He, A, Van Esch, R, Reymen, D, Huyskens   +3 more
openaire   +2 more sources

A remote EPID-based dosimetric TPS-planned audit of centers for clinical trials: outcomes and analysis of contributing factors

Radiation Oncology, 2018
Background A novel remote method for external dosimetric TPS-planned auditing of intensity modulated radiotherapy (IMRT) and volumetric modulated arc therapy (VMAT) for clinical trials using electronic portal imaging device (EPID) has been developed. The
Narges Miri, Kimberley Legge, Kim Colyvas, Joerg Lehmann, Philip Vial, Alisha Moore, Monica Harris, Peter B. Greer   +7 more
doaj   +1 more source

Simple electronic portal imager-based pretreatment quality assurance using Acuros XB: A feasibility study

Journal of Medical Physics, 2019
Objective: This study demonstrates a novel electronic portal imaging device (EPID)-based forward dosimetry approach for pretreatment quality assurance aided by a treatment planning system (TPS).
Arjunan Manikandan, Sureka Chandra Sekaran, Biplab Sarkar, Sujatha Manikandan   +3 more
doaj   +1 more source

A High-Throughput In Vitro Radiobiology Platform for Megavoltage Photon Linear Accelerator Studies

Applied Sciences, 2022
We designed and developed a multiwell tissue culture plate irradiation setup, and intensity modulated radiotherapy plans were generated for 96-, 24-, and 6-well tissue culture plates.
Kamalram Thippu Jayaprakash, Denis Mostafa, Mohammad Hussein, Richard Shaffer, Agnieszka Michael, Mazhar Ajaz, Andrew Nisbet   +6 more
doaj   +1 more source

Ce doped SiO₂ optical fibers for remote radiation sensing and measurement [PDF]

, 2009
Scintillating materials, able to efficiently operate the conversion of energy absorbed in the form of ionizing radiation into light in the visible UV interval, are presently used in a wide class of applications as medical imaging, industrial inspection ...
Marco Brambilla, Marie Claire Cantone, Anna Vedda, Giampiero Tosi, Cannillo, Barbara, Cantone, Marie Cantone, Gilberto Brambilla, Eleonora Mones, M. Brambilla, G. Brambilla, Marco Petrovich, A. Vedda, B. Cannillo, Brambilla, Gilberto, Barbara Cannillo, Norberto Chiodini, Tosi, Gaimpiero, Vedda, Anna, I. Veronese, Fasoli, Mauro, Mauro Fasoli, Mones, Eleonora, E. Mones, M. Fasoli, A. Lauria, M. Petrovich, G. Tosi, Ivan Veronese, Lauria, Alessandro, Brambilla, Marco, Alessandro Lauria, M.C. Cantone, N. Chiodini, Petrovich, Marco, F. Moretti, Chiodini, Norberto, Moretti, Federico, Veronese, Ivan, Federico Moretti   +38 more
core   +1 more source

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, Cheung J, Perez Andujar A, Husson F, Morin O.   +4 more
europepmc   +4 more sources

Radiotherapy treatment verification using radiological thickness measured with an amorphous silicon electronic portal imaging device: Monte Carlo simulation and experiment [PDF]

, 2008
This work validates the use of an amorphous-silicon, flat-panel electronic portal imaging device (a-Si EPID) for use as a gauge of patient or phantom radiological thickness, as an alternative to dosimetry.
Fielding, A.L., Sandford, P.M., Kairn, T., Cassidy, D., Sandford, P. M., Fielding, A. L.   +5 more
core   +1 more source

Comparison of EPID portal dosimetry verification and RadCalc dose verification for VMAT treatment plans

Nowotwory
INTRODUCTION: Dosimetry verification is required before starting each treatment. The legal regulations do not clearly define one method of plan verification.
Adam Gądek, Dominika Plaza, Łukasz Sroka, Marta Reudelsdorf-Ullmann, Krzysztof Ślosarek   +4 more
doaj   +1 more source

Two-dimensional exit dosimetry using a liquid-filled electronic portal imaging device and a convolution model. [PDF]

, 1997
BACKGROUND AND PURPOSE: To determine the accuracy of two-dimensional exit dose measurements with an electronic portal imaging device, EPID, using a convolution model for a variety of clinically relevant situations.
Mijnheer, B, Hans Uiterwaal, Uiterwaal, Hans, Van Herk, Marcel, Mijnheer, Ben, Boellaard, R, Ben Mijnheer, Boellaard, Ronald, Uiterwaal, H, Ronald Boellaard, van Herk, M, Van Herk, Marcel; id_orcid, Marcel van Herk   +12 more
core   +1 more source

Improvement of radiotherapy treatment delivery accuracy using an electronic portal imaging device [PDF]

, 2006
Reliable application of advanced external beam techniques for the treatment of patients with cancer, such as intensity modulated radiotherapy, requires an adequate quality assurance programme for the verification of the dose delivery.
Dirkx, M. L.P., de Boer, J. C.J., Heijmen, B. J.M.   +2 more
core   +1 more source