Results 101 to 110 of about 8,615 (194)

2d dose measurement using a flat panel EPID

, 2008
The increasing use of intensity modulated radiation therapy (IMRT) to deliver conformal radiation treatment has prompted the search for a faster and more cost effective quality assurance (QA) system.
Lim, Seng Boh
core   +1 more source

Evaluation of EPID-Based Transmission and DLG Correction Methods for Dosimetric Verification in HyperArc Single-Isocenter Multiple Target Radiosurgery. [PDF]

Diagnostics (Basel)
Oh SA, Kim SY, Park JW, Yea JW, Park J, Jo YY.   +5 more
europepmc   +1 more source

Investigation of an amorphous silicon EPID for measurement and quality assurance of enhanced dynamic wedge

This work assessed the dosimetric performance of an amorphous silicon electronic portal imaging device (EPID) for measurement and quality assurance of enhanced dynamic wedge (EDW) profile and wedge factor. EPID measurements of EDW profiles were corrected
Michael P. Barnes (21274832), Peter Greer (21132713)   +1 more
core  

Presentation of a New Averaging Method for Improvement of Systematic and Random Errors in Radiotherapy of Chest and Abdomen Cancer Using Electronic Portal Imaging Device. [PDF]

J Med Signals Sens
Asgari MR, Ghorbani M, Khosravi M, Shakeri A, Pursamimi M, Tavakoli M.   +5 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

In vivo dosimetry using an electronic portal imaging device for pediatric myeloablative Total body irradiation with volumetric modulated arc therapy. [PDF]

Phys Imaging Radiat Oncol
Greco F, Galetto M, Vaccaro M, De Spirito M, Fidanzio A, Placidi E, Rosa E, Stimato G, Teodoli S, Mariani S, Dinapoli N, Frascino V, Gambacorta MA, Chiesa S, Meldolesi E.   +14 more
europepmc   +1 more source

In vivo δοσιμετρία ακτινοθεραπευτικής δέσμης φωτονίων με τη χρήση a-Si EPID

, 2015
Σκοπός: Η αξιολόγηση μιας εύκολα εφαρμόσιμης μεθόδου δοσιμετρίας EPID, η οποία βασίζεται στη προσέγγιση της οπισθοπροβολής, και η σύγκρισή της με τη μέθοδο δοσιμετρίας EBT2 φιλμ. Μέθοδος: Προσδιορίστηκαν τα δοσιμετρικά χαρακτηριστικά του EPID.
Μανδουράρη Καλλιόπη
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

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  

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