Zobrazeno 1 - 10 of 37 pro vyhledávání: '"Donna M. Stevens"'
1
AAPM medical physics practice guideline 6.a.: Performance characteristics of radiation dose index monitoring systems
Autor: Robert J. Kobistek, M Supanich, Donna M. Stevens, Dustin A. Gress, Jia Wang, William D. Erwin, Renee L. Dickinson, David W. Jordan, Lynne Fairobent
Publikováno v: Journal of Applied Clinical Medical Physics
The American Association of Physicists in Medicine (AAPM) is a nonprofit professional society whose primary purposes are to advance the science, education and professional practice of medical physics. The AAPM has more than 8,000 members and is the p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d846ca6363d754bbf11ffa3627c7dd1
http://europepmc.org/articles/PMC5875816
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2
AAPM medical physics practice guideline 10.a.: Scope of practice for clinical medical physics
Autor: Daniel C. Pavord, Christopher T. Baird, Steven F. de Boer, Jessica B. Clements, Nicholai Wingreen, James H. Goodwin, Russell B. Tarver, Michael C. Schell, Kathryn L. Kolsky, Dustin A. Gress, Tyler S Fisher, Gig S. Mageras, Brent Parker, Rebecca M. Marsh, Jennifer L. Johnson, Lynne A. Fairobent, Donna M. Stevens, Christopher G. Waite-Jones, Melissa Martin, J. Anthony Seibert
Publikováno v: Journal of applied clinical medical physics, vol 19, iss 6
Journal of Applied Clinical Medical Physics
The American Association of Physicists in Medicine (AAPM) is a nonprofit professional society whose primary purposes are to advance the science, education, and professional practice of medical physics. The AAPM has more than 8000 members and is the p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3c165f3e6c2578cf60ba4600985276c
https://escholarship.org/uc/item/3d03w999
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3
The feasibility of patient size-corrected, scanner-independent organ dose estimates for abdominal CT exams
Autor: D Zhang, Donna M. Stevens, Michael F. McNitt-Gray, Cynthia H. McCollough, M Khatonabadi, Chris H. Cagnon, A Turner, Maria Zankl, John J. DeMarco, Dianna D. Cody
Publikováno v: Medical Physics. 38:820-829
Purpose: A recent work has demonstrated the feasibility of estimating the dose to individual organs from multidetector CT exams using patient-specific, scanner-independent CTDIvol-to-organ-dose conversion coefficients. However, the previous study onl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bdb9b49a16479fe113254b055f1bc50e
https://doi.org/10.1118/1.3533897
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4
The feasibility of a scanner-independent technique to estimate organ dose from MDCT scans: Using CTDIvol to account for differences between scanners
Autor: Chris H. Cagnon, Erin Angel, A Turner, Donna M. Stevens, Cynthia H. McCollough, Dianna D. Cody, Michael F. McNitt-Gray, John J. DeMarco, D Zhang, Maria Zankl
Publikováno v: Medical Physics. 37:1816-1825
Purpose: Monte Carlo radiation transport techniques have made it possible to accurately estimate the radiation dose to radiosensitive organs in patient models from scans performed with modern multidetector row computed tomography (MDCT) scanners. How
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a2f0e996bc32a1d42c7c8a89cec1faf
https://doi.org/10.1118/1.3368596
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5
A method to generate equivalent energy spectra and filtration models based on measurement for multidetector CT Monte Carlo dosimetry simulations
Autor: Chris H. Cagnon, Erin Angel, Hyun J. Kim, Dianna D. Cody, Michael F. McNitt-Gray, D Zhang, John J. DeMarco, Donna M. Stevens, Cynthia H. McCollough, Andrew N. Primak, A Turner
Publikováno v: Medical Physics. 36:2154-2164
The purpose of this study was to present a method for generating x-ray source models for performing Monte Carlo (MC) radiation dosimetry simulations of multidetector row CT (MDCT) scanners. These so-called "equivalent" source models consist of an ene
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be1acf95b1d3fa242c11a551f5609f68
https://doi.org/10.1118/1.3117683
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6
Variability of surface and center position radiation dose in MDCT: Monte Carlo simulations using CTDI and anthropomorphic phantoms
Autor: Andrew N. Primak, Erin Angel, Ali S. Savandi, A Turner, John J. DeMarco, Michael F. McNitt-Gray, Chris H. Cagnon, Dianna D. Cody, Donna M. Stevens, Cynthia H. McCollough, D Zhang
Publikováno v: Medical Physics. 36:1025-1038
The larger coverage afforded by wider z -axis beams in multidetector CT (MDCT) creates larger cone angles and greater beam divergence, which results in substantial surface dose variation for helical and contiguous axial scans. This study evaluates th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8a7f5ddd9055cc4fc78bc2f4cdcbf92
https://doi.org/10.1118/1.3078053
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7
Monte Carlo simulations to assess the effects of tube current modulation on breast dose for multidetector CT
Autor: Erin Angel, Michael F. McNitt-Gray, John J. DeMarco, Andrew N. Primak, Dianna D. Cody, Christopher H. Cagnon, Cecilia M. Jude, Donna M. Stevens, Cynthia H. McCollough, Jonathan G. Goldin, Nazanin Yaghmai
Publikováno v: Physics in Medicine and Biology. 54:497-512
Tube current modulation was designed to reduce radiation dose in CT imaging while maintaining overall image quality. This study aims to develop a method for evaluating the effects of tube current modulation (TCM) on organ dose in CT exams of actual p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::586bec3a808fbe89d35902140bbad62f
https://doi.org/10.1088/0031-9155/54/3/003
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8
Estimating radiation doses from multidetector CT using Monte Carlo simulations: effects of different size voxelized patient models on magnitudes of organ and effective dose
Autor: Donna M. Stevens, Cynthia H. McCollough, Chris H. Cagnon, John J. DeMarco, Maria Zankl, Erin Angel, Michael F. McNitt-Gray, Dianna D. Cody
Publikováno v: Physics in Medicine and Biology. 52:2583-2597
The purpose of this work is to examine the effects of patient size on radiation dose from CT scans. To perform these investigations, we used Monte Carlo simulation methods with detailed models of both patients and multidetector computed tomography (M
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19a3c1425a296742e6322523d0f7f3ad
https://doi.org/10.1088/0031-9155/52/9/017
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9
Multi–Detector Row CT Artifacts That Mimic Disease
Autor: Dianna D. Cody, Donna M. Stevens, Lawrence E. Ginsberg
Publikováno v: Radiology. 236:756-761
To determine retrospectively the frequency of two artifact patterns that mimic pathologic lesions on computed tomographic (CT) head images acquired in the axial scanning mode with two different multi-detector row CT systems at the same institution.Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd008d0a793810ffd1765eb86a3ddeef
https://doi.org/10.1148/radiol.2363041421
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10
A Monte Carlo based method to estimate radiation dose from multidetector CT (MDCT): cylindrical and anthropomorphic phantoms
Autor: Donna M. Stevens, Cynthia H. McCollough, Chris H. Cagnon, Jennifer O'Daniel, Michael F. McNitt-Gray, Dianna D. Cody, John J. DeMarco
Publikováno v: Physics in Medicine and Biology. 50:3989-4004
The purpose of this work was to extend the verification of Monte Carlo based methods for estimating radiation dose in computed tomography (CT) exams beyond a single CT scanner to a multidetector CT (MDCT) scanner, and from cylindrical CTDI phantom me
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fe9196e41e8092d2d7de62d14191c9c
https://doi.org/10.1088/0031-9155/50/17/005
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