Results 111 to 120 of about 7,739 (203)

Four-Dimensional In Vivo Dosimetry By Dose Reconstruction Using Continuous Epid Images And Phase Sorting Method

, 2015
In vivo dosimetry is widely used for patient specific dose evaluation and treatment verification in external beam radiation therapy (EBRT). There is a growing interest in using an electronic portal imaging device (EPID) for in vivo dosimetry, by ...
Yoon, JiHyung
core  

A component-wise commissioning and validation framework for non-transit electronic portal imaging device patient-specific quality assurance. [PDF]

Phys Imaging Radiat Oncol
Moghaddasi L, Perez M, Stewart M, Gabay N, Roderick S, Bromley R, Brown R, Booth J.   +7 more
europepmc   +1 more source

Direct dose to water dosimetry for pretreatment IMRT verification using a modified EPID

, 2011
Purpose: Electronic portal imaging devices (EPIDs) are high resolution systems that produce electronic dose maps with minimal time required for equipment setup, and therefore potentially present a time-saving alternative for intensity modulated ...
Baldock, C (15601538), Denham, JW (15649037), Kuncic, Z (15601646), Greer, PB (15649040), Gustafsson, H (15649031), Vial, P (15649034)   +5 more
core  

A multi-institutional EPID-based 3D dose reconstruction model in a virtual phantom for standardized patient QA, benchmarking and auditing for stereotactic radiosurgery. [PDF]

Phys Imaging Radiat Oncol
Zwan B, Searle E, Stanton C, Teng CL, Lim SB, Dipuglia A, Popple R, Lovelock M, Cullen A, McGarry CK, Robinson V, Zavgorodni S, Sun B, Zhao X, Schmidt M, Calvo-Ortega JF, Warner G, Cousins A, Barnes M, Greer P.   +19 more
europepmc   +1 more source

Sensitivity and concordance study of an open source EPID-based linear accelerator test suite. [PDF]

J Appl Clin Med Phys
Critchfield LC, Knill CS, Durussel E, Mikell JK, Barnes M, Pillainayagam M, Donahue WP, Lim SB, DeMarco JJ, Perez M, Gupta N, Al-Hallaq H, Popple RA, Irrer J, Moran JM.   +14 more
europepmc   +1 more source

A comparison of a novel prototype electronic portal imaging device (EPID) with film and commercial epids

International Journal of Radiation Oncology*Biology*Physics, 1998
Sanjiv S. Samant, Frank A. DiBianca, Joseph L. Laughter, Wei Zheng   +3 more
openaire   +1 more source

Beam-axis stability during gantry rotation measured with scintillation dosimetry. [PDF]

J Appl Clin Med Phys
Ohira S, Ohta T, Sugaya H, Suzuki T, Nozawa Y, Minamitani M, Katano A, Hayashi T, Yamashita H, Nakagawa K.   +9 more
europepmc   +1 more source

COMP Report: Patient-specific quality assurance practices in Canadian radiotherapy-results from a national survey. [PDF]

J Appl Clin Med Phys
Tran MN, Larouche RX, Dobberthien B, Varfalvy N, Kamta GL, Wright P, Lee R, Chan GH.   +7 more
europepmc   +1 more source

An improved Monte-Carlo model of the varian EPID separating support arm and rear-housing backscatter

Previous investigators of EPID dosimetric properties have ascribed the backscatter, that contaminates dosimetric EPID images, to its supporting arm. Accordingly, Monte-Carlo (MC) EPID models have approximated the backscatter signal from the layers under ...
Peter Greer (21132713), Z. Kuncic (9467294), M. E. Monville (21292277)   +2 more
core  

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 Phys
Tanaka K, Komori M.
europepmc   +1 more source