Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Jarrad Begg"'
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
Magnetic field correction factors are required for performing reference dosimetry on Magnetic Resonance Imaging Linear accelerators (MRI-linacs). Methods for measuring magnetic field correction factors usually require specialized equipment and expert
Externí odkaz:
https://doaj.org/article/a02ec88d27ab47339e1ff7597985c884
Autor:
Urszula Jelen, Bin Dong, Jarrad Begg, Natalia Roberts, Brendan Whelan, Paul Keall, Gary Liney
Publikováno v:
Frontiers in Oncology, Vol 10 (2020)
Purpose: Unique characteristics of MRI-linac systems and mutual interactions between their components pose specific challenges for their commissioning and quality assurance. The Australian MRI-linac is a prototype system which explores the inline ori
Externí odkaz:
https://doaj.org/article/f2588f007b34474f9dc5647e15f62822
Publikováno v:
Physical and Engineering Sciences in Medicine. 46:1-17
Consistency and clear guidelines on dosimetry are essential for accurate and precise dosimetry, to ensure the best patient outcomes and to allow direct dose comparison across different centres. Magnetic Resonance Imaging Linac (MRI-linac) systems hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::123b97fea75b242d36714e242682fb38
https://doi.org/10.1007/s13246-023-01223-w
https://doi.org/10.1007/s13246-023-01223-w
Publikováno v:
Physics in Medicine & Biology
Objective. Reference dosimetry on an MRI-linac requires a chamber specific magnetic field correction factor, k B ⃗ . This work aims to measure the correction factor for a parallel plate chamber on a parallel MRI-linac. Approach. k B ⃗ is defined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b32b1d7a19f4dc0dbc954e2c382eb74f
https://hdl.handle.net/2123/29895
https://hdl.handle.net/2123/29895
Autor:
Armia George, Trent Causer, Laura Glaubes, Jarrad Begg, Peter E Metcalfe, Sarah Alnaghy, Bin Dong, Lois Holloway, Thahabah Alharthi
Publikováno v:
Medical Physics. 45:4783-4787
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87ae89f0a31ac788579d6b331fffdc4a
https://doi.org/10.1002/mp.13117
https://doi.org/10.1002/mp.13117
Autor:
Bradley M Oborn, Natalia Roberts, Lois Holloway, Jarrad Begg, Peter E Metcalfe, Maegan Gargett, Anatoly B. Rosenfeld, Marco Petasecca, Trent Causer, Sarah Alnaghy, Bin Dong, Urszula Jelen, Gary P Liney
Publikováno v:
Medical physicsReferences. 47(4)
PURPOSE Dynamic dosimaging is a concept whereby a detector in motion is tracked with magnetic resonance imaging (MRI) to validate the amount and position of dose in a radiation therapy treatment on an MRI-linac. This work takes steps toward the reali
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::998f5cfe9f55f78be426eb88d31f10b5
https://pubmed.ncbi.nlm.nih.gov/31917865
https://pubmed.ncbi.nlm.nih.gov/31917865
Autor:
Jarrad Begg, Urszula Jelen, Trent Causer, Laura Glaubes, Armia George, Sarah Alnaghy, Bin Dong, Gary Goozee, Thahabah Alharthi, Gary P Liney, Lois Holloway, Paul J. Keall
Publikováno v:
Medical Physics
Purpose Dose deposition measurements for parallel MRI-linacs have previously only shown comparisons between 0 T and a single available magnetic field. The Australian MRI-Linac consists of a magnet coupled with a dual energy linear accelerator and a 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c6107716f7570fc88bbac516ce93a37
https://pubmed.ncbi.nlm.nih.gov/31419317
https://pubmed.ncbi.nlm.nih.gov/31419317
Autor:
Michael L. F Lerch, A. Espinoza, Marco Petasecca, Jarrad Begg, Peter E Metcalfe, Sarah Alnaghy, Maegan Gargett, Gary P Liney, Matthew Newall, Anatoly B. Rosenfeld, Lois Holloway, Mitchell Duncan, Mircea Lazea
Publikováno v:
Australasian Physical & Engineering Sciences in Medicine. 39:921-932
Tracking the position of a moving radiation detector in time and space during data acquisition can replicate 4D image-guided radiotherapy (4DIGRT). Magnetic resonance imaging (MRI)-linacs need MRI-visible detectors to achieve this, however, imaging s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::734b9922fd2ff9031a20158d7925603f
https://doi.org/10.1007/s13246-016-0495-1
https://doi.org/10.1007/s13246-016-0495-1
Autor:
Amy Walker, R. Rai, Trent Causer, Bin Dong, Bradley M Oborn, Stuart Crozier, Jarrad Begg, K. Zhang, Peter E Metcalfe, Michael Barton, Philip Vial, Frederick J. Lee, Paul J. Keall, Sarah Alnaghy, Lois Holloway, Gary P Liney
Publikováno v:
Medical Physics. 43:5188-5194
Purpose: The pursuit of real-time image guided radiotherapy using optimal tissue contrast has seen the development of several hybrid magnetic resonance imaging (MRI)-treatment systems, high field and low field, and inline and perpendicular configurat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e8c87c5ed5ee72b16132dd040a794c8
https://doi.org/10.1118/1.4961395
https://doi.org/10.1118/1.4961395
Autor:
Jonathan Lambert, Karen Lim, Jarrad Begg, Jason Dowling, Shivani Kumar, Shalini K Vinod, Lois Holloway, Brendan Whelan, Peter B. Greer
Publikováno v:
Australasian Physical & Engineering Sciences in Medicine. 38:561-568
To quantify the dose calculation error and resulting optimization uncertainty caused by performing inverse treatment planning on inaccurate electron density data (pseudo-CT) as needed for adaptive radiotherapy and Magnetic Resonance Imaging (MRI) bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49c109e56002fbd1c43e25bb706ef6e1
https://doi.org/10.1007/s13246-015-0376-z
https://doi.org/10.1007/s13246-015-0376-z