Zobrazeno 1 - 10
of 33
pro vyhledávání: '"D J, Smithies"'
Autor:
Philip H Butler, Marzieh Anjomrouz, N. de Ruiter, Peter Renaud, Stephen T. Bell, Michael F. Walsh, Tracy Kirkbride, V. B. H. Mandalika, Ali Atharifard, A. Chernoglazov, Raj K. Panta, Muhammad Shamshad, Steven P. Gieseg, M. Ramyar, Anthony Butler, D. J. Smithies, Joe Healy, Tim B. F. Woodfield, L. Vanden Broeke, Kishore Rajendran, D. Knight, Srinidhi Bheesette, C.J. Bateman, R. Aamir, David S. Rundle, Nigel G. Anderson, J. M. Mc Mahon, B. Brandwacht, R. Doesburg, James Bennett, Mahdieh Moghiseh
This paper outlines image domain material decomposition algorithms that have been routinely used in MARS spectral CT systems. These algorithms (known collectively as MARS-MD) are based on a pragmatic heuristic for solving the under-determined problem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f386684345164d280976ea5a209cbd1f
http://arxiv.org/abs/1802.05366
http://arxiv.org/abs/1802.05366
Autor:
N. de Ruiter, L. Vanden Broeke, Brian P. Goulter, Muhammad Shamshad, R. Aamir, Michael F. Walsh, Anthony Butler, K. Mueller, Mohsen Ramyar, Marzieh Anjomrouz, C.J. Bateman, Raj K. Panta, R. Doesburg, D. J. Smithies, A. Largeau, Alexander I. Chernoglazov, Kishore Rajendran, D. Knight, Ali Atharifard, Philip H Butler, Stephen T. Bell, H. Mandalika, Joseph L. Healy
The latest version of the MARS small bore scanner makes use of the Medipix3RX ASIC, bonded to a CdTe or CZT semi-conductor layer, to count x-ray photons and create a spectroscopic CT data set. The MARS imaging chain uses the energy-resolved 2D transm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b41877ab9eecd5dc5cde2b809b5b9b89
http://cds.cern.ch/record/2255699
http://cds.cern.ch/record/2255699
Autor:
Michael F. Walsh, L. Vanden Broeke, Muhammad Shamshad, R. Aamir, Raj K. Panta, P. H. Butler, A. Largeau, Stephen T. Bell, G Lu, Srinidhi Bheesette, Joseph L. Healy, Brian P. Goulter, Marzieh Anjomrouz, Ali Atharifard, D. J. Smithies, Anthony Butler, C.J. Bateman
Publikováno v:
Journal of Instrumentation. 12:P10013-P10013
Spectral computed tomography (CT) systems are employed with energy-resolving photon counting detectors. Incorporation of a spectrally accurate x-ray beam model in image reconstruction helps to improve material identification and quantification by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea89cf09f193f3958a50fdefe540871f
https://doi.org/10.1088/1748-0221/12/10/p10013
https://doi.org/10.1088/1748-0221/12/10/p10013
Autor:
N. J. A. de Ruiter, D. J. Smithies, Ali Atharifard, C.J. Bateman, Michael F. Walsh, H. Mandalika, R. Aamir, D. Knight, Kishore Rajendran, Alexander I. Chernoglazov, Marzieh Anjomrouz, Raj K. Panta, Muhammad Shamshad, Srinidhi Bheesette, M. Ramyar, Anthony Butler, Brian P. Goulter, Stephen T. Bell, C.C. Onyema, Joseph L. Healy, R. Doesburg, L. Vanden Broeke, Philip H Butler
Publikováno v:
Journal of Instrumentation. 12:C03085-C03085
Energy resolving performance of spectral CT systems is influenced by the accuracy of the detector's energy calibration. Global energy calibration maps a given threshold to the average energy response of all pixels of the detector. Variations arising
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::916db4a1db487cd6eb1657b05df58e2f
https://doi.org/10.1088/1748-0221/12/03/c03085
https://doi.org/10.1088/1748-0221/12/03/c03085
Autor:
Ashley J. Welch, J. Stuart Nelson, Martin J. C. van Gemert, Thomas E. Milner, Jennifer K. Barton, T. Joshua Pfefer, D. J. Smithies
Publikováno v:
Lasers in Surgery and Medicine. 24:151-166
Background and Objective The efficacy of laser treatment of port wine stains (PWS) has been shown to be highly dependent on patient-specific vasculature. The effect of tissue structure on optical and thermal mechanisms was investigated for different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6fcf93a76dc809d1146446d0bc2bc04
https://doi.org/10.1002/(sici)1096-9101(1999)24:2<151::aid-lsm11>3.0.co
https://doi.org/10.1002/(sici)1096-9101(1999)24:2<151::aid-lsm11>3.0.co
Publikováno v:
Physics in Medicine and Biology. 43:3025-3044
A Monte Carlo model has been developed for optical coherence tomography (OCT). A geometrical optics implementation of the OCT probe with low-coherence interferometric detection was combined with three-dimensional stochastic Monte Carlo modelling of p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e6bf6b023ebc7a4cbcaebed55ab1b21
https://doi.org/10.1088/0031-9155/43/10/024
https://doi.org/10.1088/0031-9155/43/10/024
Publikováno v:
Physics in Medicine and Biology. 43:3045-3064
A Monte Carlo model has been developed for optical Doppler tomography (ODT) within the framework of a model for optical coherence tomography (OCT). A phantom situation represented by blood flowing in a horizontal 100 microm diameter vessel placed at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::814382d17e8801709c85040f4cf2e680
https://doi.org/10.1088/0031-9155/43/10/025
https://doi.org/10.1088/0031-9155/43/10/025
Autor:
D. N. Tang, Kishore Rajendran, Peter Renaud, Raj K. Panta, Stephen T. Bell, D. J. Smithies, R. Glendenning, Philip H Butler, Rafidah Zainon, Christoph Bartneck, Joe Healy, Karen Hodge, Nanette Schleich, A. M. T. Opie, Michael F. Walsh, L. Brooke, C.J. Bateman, Mark Billinghurst, Nigel G. Anderson, J. L. Mohr, M. Clyne, R. Doesburg, Philip J. Bones, H. Mandalika, S. Abdul-Majid, Steven P. Gieseg, Anthony Butler, R. Aamir, Tim B. F. Woodfield, A. Chernoglazov, J. P. Ronaldson, T. Janmale, N. de Ruiter, Nicola J. A. Scott, S J Nik, D. Kim, Nathan Cook, Raphael Grasset
Spectral molecular imaging is a new imaging technique able to discriminate and quantify different components of tissue simultaneously at high spatial and high energy resolution. Our MARS scanner is an x-ray based small animal CT system designed to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de488c4e46687fa2155e5dfefb030865
https://hdl.handle.net/11541.2/115389
https://hdl.handle.net/11541.2/115389
Publikováno v:
Physics in Medicine and Biology, 42, 41-50. IOP Publishing Ltd.
Physics in medicine and biology, 42(1), 41-50. IOP Publishing Ltd.
vanGemert, MJC; Smithies, DJ; Verkruysse, W; Milner, TE; & Nelson, JS. (1997). Wavelengths for port wine stain laser treatment: Influence of vessel radius and skin anatomy. PHYSICS IN MEDICINE AND BIOLOGY, 42(1), 41-50. doi: 10.1088/0031-9155/42/1/002. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/1nt4b1wj
Physics in medicine and biology, 42(1), 41-50. IOP Publishing Ltd.
vanGemert, MJC; Smithies, DJ; Verkruysse, W; Milner, TE; & Nelson, JS. (1997). Wavelengths for port wine stain laser treatment: Influence of vessel radius and skin anatomy. PHYSICS IN MEDICINE AND BIOLOGY, 42(1), 41-50. doi: 10.1088/0031-9155/42/1/002. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/1nt4b1wj
Recent Monte Carlo computations in realistic port wine stain (PWS) models containing numerous uniformly distributed vessels suggest equal depth of vascular injury at wavelengths of 577 and 585 nm. This finding contradicts clinical experience and prev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d8841d0dbbbb33d9926490d99435863
https://doi.org/10.1088/0031-9155/42/1/002
https://doi.org/10.1088/0031-9155/42/1/002
Publikováno v:
Physics in Medicine and Biology, 42, 1843-1847. IOP Publishing Ltd.
Physics in medicine and biology, 42(9), 1843-1847. IOP Publishing Ltd.
Smithies, DJ; Van Gemert, MJC; Hansen, MK; Milner, TE; & Nelson, JS. (1997). Three-dimensional reconstruction of port wine stain vascular anatomy from serial histological sections. Physics in Medicine and Biology, 42(9), 1843-1847. doi: 10.1088/0031-9155/42/9/014. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/7mb8d9xh
Physics in medicine and biology, 42(9), 1843-1847. IOP Publishing Ltd.
Smithies, DJ; Van Gemert, MJC; Hansen, MK; Milner, TE; & Nelson, JS. (1997). Three-dimensional reconstruction of port wine stain vascular anatomy from serial histological sections. Physics in Medicine and Biology, 42(9), 1843-1847. doi: 10.1088/0031-9155/42/9/014. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/7mb8d9xh
Port wine stains (PWSs) treated with a flashlamp-pumped pulsed dye laser show a variability in clinical response that is incompletely understood. To identify any vascular structure that might adversely affect treatment response, we obtained a three-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef4485c57265d29c02afc856aa588523
https://doi.org/10.1088/0031-9155/42/9/014
https://doi.org/10.1088/0031-9155/42/9/014