Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Jeff Shepard"'
Autor:
Bruce Apgar, Ryan Fisher, A. Kyle Jones, K Hulme, Robert Uzenoff, L Goldman, Susan Lang, Andrew Woodward, L Rill, Charles E. Willis, Jaydev K. Dave, Donald J. Peck, S. Jeff Shepard, Robert MacDougall, D Zamora, Samuel L. Brady
Publikováno v:
Medical Physics. 45
Beginning with the advent of digital radiography systems in 1981, manufacturers of these systems provided indicators of detector exposure. These indicators were manufacturer-specific, and users in facilities with equipment from multiple manufacturers
Autor:
Ishtiaq H. Bercha, Keith J. Strauss, Stephen Balter, Beth A. Schueler, Richard H. Behrman, Don Soo Kim, S. Jeff Shepard, M. Terry Lafrance, Kevin Wunderle, Pei Jan P. Lin
Publikováno v:
Medical Physics. 42:6815-6829
Due to the proliferation of disciplines employing fluoroscopy as their primary imaging tool and the prolonged extensive use of fluoroscopy in interventional and cardiovascular angiography procedures, “dose-area-product” (DAP) meters were installe
Autor:
J. Anthony Seibert, Jessica B. Clements, Per H. Halvorsen, Michael G. Herman, Melissa C. Martin, Jatinder Palta, Douglas E. Pfeiffer, Robert J. Pizzutiello, Beth A. Schueler, S. Jeff Shepard, Lynne A. Fairobent
Publikováno v:
Journal of Applied Clinical Medical Physics
ViewRay is a novel MR‐guided radiotherapy system capable of imaging in near real‐time at four frames per second during treatment using 0.35T field strength. It allows for improved gating techniques and adaptive radiotherapy. Three cobalt‐60 sou
Autor:
Pei-Jan P, Lin, Beth A, Schueler, Stephen, Balter, Keith J, Strauss, Kevin A, Wunderle, M Terry, LaFrance, Don-Soo, Kim, Richard H, Behrman, S Jeff, Shepard, Ishtiaq H, Bercha
Publikováno v:
Medical physics. 42(12)
Due to the proliferation of disciplines employing fluoroscopy as their primary imaging tool and the prolonged extensive use of fluoroscopy in interventional and cardiovascular angiography procedures, "dose-area-product" (DAP) meters were installed to
Publikováno v:
Journal of Digital Imaging. 24:243-255
Rejected images represent both unnecessary radiation exposure to patients and inefficiency in the imaging operation. Rejected images are inherent to projection radiography, where patient positioning and alignment are integral components of image qual
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
Publikováno v:
Medical Physics. 32:2881-2887
This paper describes the procedure for using a Fuji computed radiography (CR) imaging plate (IP) for the measurement of computed tomography (CT) radiation profiles. Two sources of saturation in the data from the IP, signal and quantization, were char
Autor:
Atsushi Fukuda, Pei-Jan Paul Lin, Keith J. Strauss, Terry LaFrance, Stephen Balter, Allen R. Goode, Gary D. Hartwell, Edward Nickoloff, Phillip Rauch, Jeff Shepard
Publikováno v:
Medical Physics. 39:2826-2828
Task Group 125 (TG 125) was charged with investigating the functionality of fluoroscopic automatic dose rate and image quality control logic in modern angiographic systems, paying specific attention to the spectral shaping filters and variations in t
Publikováno v:
Journal of Digital Imaging. 15:27-32
The aim of this work was to implement the DICOM Grayscale Standard Display Function (GSDF) at all stages of image presentation for computed radiography (CR) and direct digital radiography (DR) modalities. Cathode-ray tubes (CRT) were calibrated accor
Publikováno v:
Journal of Digital Imaging. 10:120-125
Large-scale picture archiving and communication systems (PACS) have not been widely implemented in this or other countries. In almost all radiology departments film remains the medium for diagnostic interpretation and image archive. Chest imaging is