Results 121 to 130 of about 8,621 (193)

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

Comparative Evaluation of Curve-fitting Techniques for Electronic Portal Imaging Device-based Multileaf Collimator Picket Fence Analysis. [PDF]

J Med Phys
Mogulagani VK, Uthiran MR, Babu CHR, Dumpala M.   +3 more
europepmc   +1 more source

Implementation of VMAT-based lattice spatially fractionated radiation therapy (SFRT) across linac platforms: Practical considerations for QA and motion management. [PDF]

J Appl Clin Med Phys
Gholami S, Rassiah P.
europepmc   +1 more source

Assessing Gamma Index Sensitivity to Selected Linear Accelerator Mechanical Errors Using Various Dosimetric Systems. [PDF]

J Clin Med
Ayata HB, Aydin G, Ozgur EG, Ozen Z, Celik T, Gundogdu O.   +5 more
europepmc   +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

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  

Comparison of log file-based and measurement-based QA for detecting MLC positional errors and evaluating dosimetric impacts of MLC defects. [PDF]

J Appl Clin Med Phys
Kim CH, Kang KM, Choi HS.
europepmc   +1 more source

Deep learning-based 3D dose reconstruction for intensity modulated radiation therapy using electronic portal imaging devices. [PDF]

J Appl Clin Med Phys
Yang D, Fan J, Wenliang Y, Wang J, Sun Z, Hu W.   +5 more
europepmc   +1 more source