Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Andrew J. Shepard"'
Autor:
Andrew J. Shepard, S. P. Frigo
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose To assess the implementation, accuracy, and validity of the dosimetric leaf gap correction (DLGC) in Mobius3D VMAT plan calculations. Methods The optimal Mobius3D DLGC was determined for both a TrueBeam with a Millennium multi‐leaf collimat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5643b6e2ea40e030568b22a9ff776b37
https://doi.org/10.1002/acm2.13206
https://doi.org/10.1002/acm2.13206
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose Dark current radiation produced during linac beam‐hold has the potential to lead to unplanned dose delivered to the patient. With the increased usage of motion management and step‐and‐shoot IMRT deliveries for MR‐guided systems leadin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47e790b6c93edd08ef9ccf1c12fd3afe
http://europepmc.org/articles/PMC7769391
http://europepmc.org/articles/PMC7769391
Publikováno v:
Phys Med
Objectives The purpose of this study was to dosimetrically benchmark gel dosimetry measurements in a dynamically deformable abdominal phantom for intrafraction image guidance through a multi-dosimeter comparison. Once benchmarked, the study aimed to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e813790851717262836db80a5974bca5
https://pubmed.ncbi.nlm.nih.gov/33901860
https://pubmed.ncbi.nlm.nih.gov/33901860
Publikováno v:
Medical Physics. 44:5889-5900
Purpose The implementation of motion management techniques in radiation therapy can aid in mitigating uncertainties and reducing margins. For motion management to be effective, it is necessary to track key structures both accurately and at a real-tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea77a3d4ee73d8b7e1dc14d517a33c72
https://doi.org/10.1002/mp.12574
https://doi.org/10.1002/mp.12574
Publikováno v:
Journal of Applied Clinical Medical Physics
Intrafraction imaging‐based motion management systems for external beam radiotherapy can rely on internal surrogate structures when the target is not easily visualized. This work evaluated the validity of using liver vessels as internal surrogates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::344b3312ae616da09b86c205f5a8691d
https://pubmed.ncbi.nlm.nih.gov/32533758
https://pubmed.ncbi.nlm.nih.gov/32533758
Autor:
Charles K. Matrosic, Andrew J. Shepard, Sydney A. Jupitz, Jeffrey L. Radtke, Wesley S. Culberson, Bryan Bednarz
Publikováno v:
Medical physics. 45(11)
PURPOSE: Latencies for motion management systems have previously been presented as guidelines for system development and implementation. These guidelines consider the overall system latency, including data acquisition, algorithm processing, and linac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29f42ab093e41b9cc0bfadc734acf20b
https://pubmed.ncbi.nlm.nih.gov/30220085
https://pubmed.ncbi.nlm.nih.gov/30220085
Autor:
Andrew J, Shepard, Edward T, Bender
Publikováno v:
Journal of radiosurgery and SBRT. 4(3)
To develop a fundamentally new stereotactic radiosurgery (SRS) collimator design which utilizes initially off-axis Compton scattered photons to increase the dose rate at isocenter for small field treatments.The proposed design added a set of conical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::62379e06ca18cb8dacdb93a34aaeaed8
https://pubmed.ncbi.nlm.nih.gov/29296447
https://pubmed.ncbi.nlm.nih.gov/29296447
Publikováno v:
The American Journal of Emergency Medicine. 23:913-915
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f07e10df9e5a89f8d9e09e8749a4404
https://doi.org/10.1016/j.ajem.2005.06.003
https://doi.org/10.1016/j.ajem.2005.06.003
Autor:
Eric Fiveland, Thomas K. F. Foo, Bo Wang, Andrew J. Shepard, Bryan Bednarz, James A. Zagzebski, Scott Smith, Warren Lee, Charles K. Matrosic, D.M. Mills, Alan B. McMillan, Kunlin Cao, Wesley S. Culberson, Michael F. Bassetti, R Darrow
Publikováno v:
Medical Physics. 43:3635-3635
Purpose: To develop and validate a real-time motion management platform for radiotherapy that directly tracks tumor motion using ultrasound and MRI. This will be a cost-effective and non-invasive real-time platform combining the excellent temporal re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dd64ad355714aba8c83f0670a4355f8
https://doi.org/10.1118/1.4956925
https://doi.org/10.1118/1.4956925
Publikováno v:
Medical Physics. 43:3649-3649
Purpose: To develop an advanced testbed that combines a 3D motion stage and ultrasound phantom to optimize and validate 2D and 3D tracking algorithms for real-time motion management during radiation therapy. Methods: A Siemens S2000 Ultrasound scanne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e604e9e8e36dc0b1f2bb88eabd867ea7
https://doi.org/10.1118/1.4956982
https://doi.org/10.1118/1.4956982