Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Isaias D. Job"'
Publikováno v:
Medical Imaging 2020: Physics of Medical Imaging.
Many improvements have been made to amorphous silicon (a-Si) flat panel detectors (FPDs) to meet the market needs for different x-ray imaging applications. With the current generation of a-Si FPDs the performance is limited by the a-Si thin film tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce866a7f6c351786687737560bfbfabe
https://doi.org/10.1117/12.2549469
https://doi.org/10.1117/12.2549469
Autor:
Arundhuti Ganguly, Richard L. Weisfield, Elena Muñoz, Jin Zhang, Carlo Tognina, Isaias D. Job, Colbeth Rick E, Don Vernekohl
Publikováno v:
Medical Imaging 2019: Physics of Medical Imaging.
Complementary metal-oxide-semiconductors (CMOS) flat panel detectors (FPD) have steadily gained acceptance into medical imaging applications1-15. Selecting the proper detector technology for the imaging task requires optimization to balance the cost
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1391b52f3e141d4cd2d269d79c05df0e
https://doi.org/10.1117/12.2513500
https://doi.org/10.1117/12.2513500
Publikováno v:
Medical Imaging 2019: Physics of Medical Imaging.
Mammography systems demand high quality imaging at reduced acquisition times. The Varex 3024MX imager was designed specifically with the demands of mammographic imaging in mind: high spatial resolution, excellent low contrast resolution as well as ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd4a93632c1fb27f4cd9abf06ad0341b
https://doi.org/10.1117/12.2513473
https://doi.org/10.1117/12.2513473
Publikováno v:
2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD).
In general, the Detective Quantum Efficiency, DQE, is the standard metric for assessing image quality1 of a flat panel detector (FPD). However, a single descriptor is insufficient for describing the image quality of an FPD used for clinical imaging t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d67eb907d27d976a694a7ee43b6c47a2
https://doi.org/10.1109/nssmic.2016.8069614
https://doi.org/10.1109/nssmic.2016.8069614
Publikováno v:
SPIE Proceedings.
Quantum-limited-dose (QLD) and noise-equivalent-dose (NED) are performance metrics often used interchangeably. Although the metrics are related, they are not equivalent unless the treatment of electronic noise is carefully considered. These metrics a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e63016fc8a0413abca0b781ae6d732b4
https://doi.org/10.1117/12.2216888
https://doi.org/10.1117/12.2216888
Autor:
Pieter Gerhard Roos, Ivan P. Mollov, Richard E. Colbeth, Isaias D. Job, Fred Zoghi, Carlo Tognina, Chris Webb, Keith Gray, Nima Taie-Nobraie, John Pavkovich
Publikováno v:
SPIE Proceedings.
The focus of this work was to improve the DQE performance of a full-field digital mammography (FFDM) system by means of selecting an optimal X-ray tube anode-filter combination in conjunction with an optimal scintillator configuration. The flat panel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b1790a62e52a865b61b1b963dc23e46
https://doi.org/10.1117/12.911795
https://doi.org/10.1117/12.911795
Autor:
Carlo Tognina, Ivan P. Mollov, Earl T. Daley, Todor I. Mollov, Edward Shapiro, Isaias D. Job, Josh Star-Lack, John Pavkovich, Richard E. Colbeth, Pieter Gerhard Roos
Publikováno v:
SPIE Proceedings.
A unique 64-row flat panel (FP) detector has been developed for sub-second multidetector-row CT (MDCT). The intent was to explore the image quality achievable with relatively inexpensive amorphous silicon (a-Si) compared to existing diagnostic scanne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7528832d64d5a5f0ab63b644f3e9766
https://doi.org/10.1117/12.713682
https://doi.org/10.1117/12.713682
Autor:
Chris Webb, Boris Nepo, Robert Fong, Mark D. Batts, Carlo Tognina, Jiann M. Yu, Delenah Trinh, Ivan P. Mollov, Nima Taie-Nobraie, Richard E. Colbeth, Pieter Gerhard Roos, Isaias D. Job, Keith Gray, Sarah J. Boyce
Publikováno v:
SPIE Proceedings.
This paper describes a new flat panel imager designed for use in cardiovascular and mobile C-arm imaging systems. The a-Si sensor array has a 1024 x 1024 matrix with a pixel pitch of 194 μm, resulting in an active area of 198.7 mm x 198.7 mm. The im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a31d256401a07daed5c7159f8f4ea30f
https://doi.org/10.1117/12.536054
https://doi.org/10.1117/12.536054
Autor:
Edward J. Seppi, Edward Shapiro, D.J. Day, Richard Harris, Richard E. Colbeth, John Pavkovich, David L. Gilblom, Michael Dean Wright, J.M. Yu, Isaias D. Job, Martin E. Klausmeier-Brown, M.J. Allen
Publikováno v:
ISCAS '98. Proceedings of the 1998 IEEE International Symposium on Circuits and Systems (Cat. No.98CH36187).
This paper describes a multi-mode, digital imager for real-time X-ray applications. The imager has three modes of operation: low dose fluoroscopy, zoom fluoroscopy, and high resolution radiography. These modes trade-off resolution or field-of-view fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab13baba5936e2185309a7ab80efd09c
https://doi.org/10.1109/iscas.1998.705431
https://doi.org/10.1109/iscas.1998.705431
Autor:
Ivan P. Mollov, Richard E. Colbeth, Robert Fong, Chris Webb, Keith W. Gray, Boris Nepo, Nima Taie-Nobarie, John Pavkovich, Jiann Michael Yu, Michael Dean Wright, Edward J. Seppi, Sarah J. Boyce, Richard A. Harris, Edward Shapiro, Isaias D. Job
Publikováno v:
Medical Imaging 2001: Physics of Medical Imaging.
Preliminary results are presented from the PaxScan 4030A; a 40x30cm, 2048 x 1536 landscape, flat panel imager, with 194um pixel pitch. This imager builds on our experience with the PaxScan 2520, a 127um real-time flat panel detector capable of both h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ac7760a16640e3449137f7ccc0ef955
https://doi.org/10.1117/12.430917
https://doi.org/10.1117/12.430917