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Overview of 3-year experience with large-scale electronic portal imaging device-based 3-dimensional transit dosimetry. [PDF]

Practical Radiation Oncology, 2015
To assess the usefulness of electronic portal imaging device (EPID)-based 3-dimensional (3D) transit dosimetry in a radiation therapy department by analyzing a large set of dose verification results.
B. Mijnheer, P. González, I. Olaciregui-Ruiz, R. Rozendaal, M. V. van Herk, A. Mans   +5 more
semanticscholar   +2 more sources

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Evaluation and implementation of EPID transit dosimetry system

Physica Medica
B. Gordon
openaire   +2 more sources

Transit dosimetry [PDF]

Radiotherapy and Oncology, 1995
Vibeke N. Hansen, Phil M. Evans, William Swindell   +2 more
openaire   +2 more sources

EPID-based in vivo transit dosimetry

2017
B. Mijnheer
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Deep learning methods for transit dosimetry with EPID images

Physica Medica
L. Marini, C. Mozzi, M. Avanzo, A. Kraan, F. Lizzi, L. Marrazzo, I. Meattini, G. Pirrone, A. Retico, E. Uwitonze, C. Talamonti   +10 more
openaire   +2 more sources

An electronic portal imaging device for transit dosimetry

Physics in Medicine and Biology, 1997
An electronic portal imaging device has been designed and constructed. It consists of an array of 128 CsI scintillation crystals coupled to photodiodes which is scanned across the field in 4 seconds. The linac is operated at a dose rate of 400 cGy min-1 and the dose delivered for image acquisition is approximately 27 cGy.
SymondsTayler, JRN, Partridge, M, Evans, PM   +2 more
openaire   +4 more sources

28 Contribution of transit dosimetry (EPID-based) and retrospective dose calculation in the patient’s real anatomy (kV-CBCT-based) for the estimation of the dose delivered to the patient (Preliminary study)

Physica medica (Testo stampato), 2018
Introduction During an external photon radiotherapy treatment, transit dosimetry performed with the electronic portal imaging device (EPID) makes it possible to record a footprint of the irradiation beam passing through the patient to detect any ...
R. Sauvinet, C. Chevillard, F. Husson, N. Pierrat, J. Dumas   +4 more
semanticscholar   +1 more source

Evaluation of the Accuracy of Dose Delivery for IMRT Based on Transit Dosimetry

Health Physics, 2014
The authors have developed and evaluated a new method that uses transit dose in the treatment room in verification of dose delivery to patients. Five intensity modulated radiotherapy (IMRT) plans were selected from actual cancer patients, and transit dose was measured using MapCHECK 2 and an anthropomorphic phantom.
Tae Seong, Baek, Eun Ji, Chung, Eui Kwan, Koh, Jungju, Seo, Myonggeun, Yoon   +4 more
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Transit dosimetry in IMRT with an a-Si EPID in direct detection configuration

Physics in Medicine and Biology, 2012
In this study an amorphous silicon electronic portal imaging device (a-Si EPID) converted to direct detection configuration was investigated as a transit dosimeter for intensity modulated radiation therapy (IMRT). After calibration to dose and correction for a background offset signal, the EPID-measured absolute IMRT transit doses for 29 fields were ...
Sabet, Mahsheed, Rowshanfarzad, Pejman, Vial, Philip, Menk, Frederick W., Greer, Peter B.   +4 more
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EPID calibration method for transit in-vivo dosimetry

2009
The mostly used in-vivo dosimetry techniques require efforts for their implementation measurements, workload for the detector positioning and for the data analysis. The transit in-vivo dosimetry, performed by the Electronic Portal Imaging Device (EPID), avoids the problem of the detector positioning on the patient.
A. Fidanzio, S. Cilla, F. Greco, L. Azario, L. Grimaldi, D. Sabatino, A. Piermattei   +6 more
openaire   +1 more source