Zobrazeno 1 - 10
of 34
pro vyhledávání: '"R. Al‐senan"'
Publikováno v:
Biomedical physicsengineering express. 6(6)
Dose to the thyroid from helical chest CT can vary significantly due to the random tube start point, pitch factor, thyroid position relative to the isocenter, and beam width. We used optically stimulated luminescence dosimeters (OSLDs) and an adult a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2bbc9a809ac12bbaeaac7be40785cbb
https://pubmed.ncbi.nlm.nih.gov/34932019
https://pubmed.ncbi.nlm.nih.gov/34932019
Autor:
R. Al‐senan, Mustapha R. Hatab
Publikováno v:
Medical Physics. 38:4396-4405
Purpose: Optically stimulated luminescence(OSL)dosimetry has been recently introduced in radiation therapy as a potential alternative to the thermoluminescent dosimeter(TLD) system. The aim of this study was to investigate the feasibility of using OS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87e31a208c9a276f6efd5f5146125b34
https://doi.org/10.1118/1.3602456
https://doi.org/10.1118/1.3602456
Autor:
R. Al‐senan, Daniel L. Dent, Joel E. Michalek, John G. Myers, Steven E. Wolf, Ronald M. Stewart, Michael G. Corneille, Stephen M. Cohn, Deborah L Mueller, Mustapha R. Hatab
Publikováno v:
The Journal of trauma. 70(3)
Background: Increased utilization of computed tomography (CT) scans for evaluation of blunt trauma patients has resulted in increased doses of radiation to patients. Radiation dose is relatively amplified in children secondary to body size, and child
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8aa5b4a54796d2d3414f710f51f23cea
https://pubmed.ncbi.nlm.nih.gov/21610365
https://pubmed.ncbi.nlm.nih.gov/21610365
Autor:
R Al-Senan
Publikováno v:
Medical Physics. 41:106-106
Purpose: To quantify experimentally scatter contribution to CTDI in center and peripheral holes of the body (32-cm) phantom. Methods: All experiments were performed in Service Mode of 750CT-Discovery with both tube and table were in stationary positi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b45b4ed7e41fe8bbc3fa174405faf88d
https://doi.org/10.1118/1.4887849
https://doi.org/10.1118/1.4887849
Autor:
D Gauntt, R Al-Senan
Publikováno v:
Medical Physics. 41:557-557
Purpose: The ACR now requires that the CT radiation profile width be measured at all clinically used collimations. We developed a method for measuring the profile width using dosimetry alone to allow a faster and simpler measurement of beam widths. M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99c0e764c1d1dba726d9607907bde053
https://doi.org/10.1118/1.4889628
https://doi.org/10.1118/1.4889628
Publikováno v:
Medical Physics. 35:2651-2652
Purpose: As the patient table does not move during a cerebral perfusion CT study, the CTDI is not a true representation of dose to specific points in the scan volume and point dose methods are more appropriate. Our goal was to investigate the dose pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::900d04085178eca41acc2254a7c674ab
https://doi.org/10.1118/1.2961439
https://doi.org/10.1118/1.2961439
Autor:
M Yester, R Al-Senan
Publikováno v:
Medical Physics. 40:129-129
Purpose: To compare the performance between two available metal artifact reduction software (MAR) packages from different CT vendors to determine applicability for surgical screws, even though such use is not supported. Methods: Two vertebral screws
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c74916544c9e7b8dc2ab20443312001c
https://doi.org/10.1118/1.4814131
https://doi.org/10.1118/1.4814131
Autor:
R Al-Senan, M Hatab
Publikováno v:
Medical Physics. 39:3924-3924
Purpose: To investigate the effect of the helical pitch, patient size, and beam width on point dose measurements of superficial organs in MSCT. Methods: Three sizes of cylindrical PMMA phantoms were utilized; 32cm (body), 16cm (adult head), and 10cm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::012a175e5cce767280e807eea1e9905b
https://doi.org/10.1118/1.4736016
https://doi.org/10.1118/1.4736016
Publikováno v:
Medical Physics. 37:3116-3116
Purpose: To estimate thyroid dose from multi‐detector CT Head and Neck scans in an Anthropomorphic phantom using TLDs, OSLs, and the Monte Carlo‐based ImPACT software, and to compare the results to OSL doses obtained from teenage patients. Method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bc7214d315344078b741104f6f4dcb2
https://doi.org/10.1118/1.3468099
https://doi.org/10.1118/1.3468099
Publikováno v:
Medical Physics. 37:3463-3463
Purpose: Use of GAFCHROMIC® XR‐QA film to estimate entrance skin dose and skin dose measurements resulting from computed tomography‐guided procedures such as tumor ablation cyst aspiration and needle biopsies. Materials and Methods: Small pieces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f27a6135a05a00990f958efc213a987
https://doi.org/10.1118/1.3469525
https://doi.org/10.1118/1.3469525