Zobrazeno 1 - 9
of 9
pro vyhledávání: '"David L. Leong"'
Autor:
Louise Rainford, Patrick C. Brennan, David L. Leong, William R. Geiser, Tamara Miner Haygood, Lumarie Santiago, Gary J. Whitman, Beatriz E. Adrada
Publikováno v:
Journal of Digital Imaging. 26:1099-1106
Published information on contrast detection threshold is based primarily on research using a location-known methodology. In previous work on testing the Digital Imaging and Communications in Medicine (DICOM) Grayscale Standard Display Function (GSDF)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20ea9c77f68f06ef2e1ef5ea4239e42d
https://doi.org/10.1007/s10278-013-9589-4
https://doi.org/10.1007/s10278-013-9589-4
Autor:
S. Jeff Shepard, Jihong Wang, Michael Flynn, Eric Gingold, Lee Goldman, Kerry Krugh, David L. Leong, Eugene Mah, Kent Ogden, Donald Peck, Ehsan Samei, Charles E. Willis
Publikováno v:
Medical Physics. 36:2898-2914
Digital radiographic imaging systems, such as those using photostimulable storage phosphor, amorphous selenium, amorphous silicon, CCD, and MOSFET technology, can produce adequate image quality over a much broader range of exposure levels than that o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80b2006dd45af2af3d142c4109ae7ad5
https://doi.org/10.1118/1.3121505
https://doi.org/10.1118/1.3121505
Publikováno v:
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 32(1)
In the course of performance acceptance testing, benchmarking or quality control of X-ray imaging systems, it is sometimes necessary to harden the X-ray beam spectrum. IEC 61267 specifies materials and methods to accomplish beam hardening and, unfort
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab5ad2e14e1554ecdb03b96fdf9648da
https://pubmed.ncbi.nlm.nih.gov/26776501
https://pubmed.ncbi.nlm.nih.gov/26776501
Autor:
Kathleen M. Willison, David L. Leong, Stamatia Destounis, David P Miller, Patricia Somerville, Ermelinda Bonaccio, Margarita Zuley, Posy Seifert
Publikováno v:
American Journal of Roentgenology. 187:1492-1498
Our purpose was to determine if the display of full-field digital mammograms on a 5-megapixel liquid crystal display (LCD) monitor is at least equivalent to the display of the same on a 5-megapixel cathode ray tube (CRT) monitor.Five radiologists eva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fb64ac53e754461d832e13b8f1f9407
https://doi.org/10.2214/ajr.04.1713
https://doi.org/10.2214/ajr.04.1713
Autor:
Patrick C. Brennan, Louise Rainford, Paul L. Davis, David L. Leong, Gary J. Whitman, Tamara Miner Haygood, William R. Geiser, Tanya W. Stephens
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 31(11)
Current literature shows that radiologist experience does not affect detection tasks when the object does not require medical training to detect. However, the research was never sufficiently detailed to examine if the contrast detection threshold is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6981f5507fbda1e11de4fed35223cbef
https://pubmed.ncbi.nlm.nih.gov/25401342
https://pubmed.ncbi.nlm.nih.gov/25401342
Autor:
Marie-Louise Butler, John Ryan, Michael G. Evanoff, David L. Leong, Louise Rainford, Rachel Toomey, Eoin C. Kavanagh
Publikováno v:
AJR. American journal of roentgenology. 203(5)
The study aimed to determine the acceptability of the iPad 3 as a display option for American Board of Radiology (ABR) examinations.A set of 20 cases for each of nine specialties examined by the ABR was prepared. Each comprised between one and seven
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97cb29d7b6f7cca4381ffaefb3a78606
https://pubmed.ncbi.nlm.nih.gov/25341141
https://pubmed.ncbi.nlm.nih.gov/25341141
Autor:
Tamara Miner Haygood, Philip M. Tchou, Gary J. Whitman, William R. Geiser, David L. Leong, Louise Rainford, Selin Carkaci, Patrick C. Brennan
Publikováno v:
Journal of digital imaging. 25(5)
While previous research has determined the contrast detection threshold in medical images, it has focused on uniform backgrounds, has not used calibrated monitors, or has involved a low number of readers. With complex clinical images, how the Graysca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c552c863fda28b9e7446e46030e3fc99
https://pubmed.ncbi.nlm.nih.gov/22535193
https://pubmed.ncbi.nlm.nih.gov/22535193
Autor:
Patrick C. Brennan, Tamara Miner Haygood, Philip M. Tchou, Selin Carkaci, David L. Leong, Gary J. Whitman
Publikováno v:
Medical Imaging 2010: Image Perception, Observer Performance, and Technology Assessment.
While previous research has been done to determine the contrast detection threshold in medical images, we have found it difficult to translate the results into settings that can be used for the optimization of image quality. Since many of these paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0075778eb2647ef10fee220b649da53f
https://doi.org/10.1117/12.845226
https://doi.org/10.1117/12.845226
Autor:
David L. Leong, Patrick C. Brennan
Publikováno v:
SPIE Proceedings.
In order to optimize image quality, Figures of Merit (FOM) have been developed, including Signal-to-Noise ratio (SNR), Contrast-to-Noise ratio (CNR), and CNR 2 -to-Dose ratio (CNR 2 /PED). Some FOMs are designed to describe the performance of system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6d2a0477a191958edd3b3ccd2a09fce
https://doi.org/10.1117/12.813676
https://doi.org/10.1117/12.813676