Results 231 to 240 of about 944,632 (294)
Photon-counting detector of the ophthalmic artery: impact of virtual monoenergetic levels, reconstruction kernel, and quantum iterative reconstruction (QIR) on image quality. [PDF]
Quant Imaging Med SurgLv S +5 more
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Infant and toddler's preoperative chest imaging on photon-counting detector CT: a paired-sample comparison with energy-integrating detector CT on image quality and radiation dose. [PDF]
BMC Med ImagingLiu XY +8 more
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Edge-on photon-counting detector
, 2021 An edge-on photon-counting detector includes at least one detector module having a respective edge facing incident X-rays. The at least one detector module includes a semiconductor substrate. The edge-on photon-counting detector also includes a plurality
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Characterization of a GaAs photon-counting detector for mammography
Journal of Medical Imaging, 2021Purpose: The purpose of this study was to evaluate the potential of a prototype gallium arsenide (GaAs) photon-counting detector (PCD) for imaging of the breast. Approach: First, the contrast-to-noise ratio (CNR) using different aluminum/poly(methyl methacrylate) (PMMA) phantoms of different thicknesses were measured.
Bahaa, Ghammraoui +2 more
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Pediatric Applications of Photon-Counting Detector CT
American Journal of Roentgenology, 2023Photon-counting detector (PCD) CT represents the most recent generational advance in CT technology. PCD CT has the potential to reduce image noise, improve spatial resolution and contrast resolution, and provide multispectral capability, all of which may be achieved with an overall decrease in the radiation dose. These effects may be used to reduce the
Joseph, Cao +3 more
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Photon-counting chip for avalanche detectors
IEEE Photonics Technology Letters, 2005We present a microelectronic chip that can replace bulky and expensive single-photon-counting boards in many applications. The chip can be assembled with the detector into a microscopic detection head and communicates straight to a host computer. The chip includes an active quenching and active reset circuit for driving a single-photon avalanche diode,
ZAPPA, FRANCO +2 more
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Improving Paralysis Compensation in Photon Counting Detectors
IEEE Transactions on Medical Imaging, 2021Photon counting detectors (PCDs) are classically described as being either paralyzable or nonparalyzable. When the PCD is paralyzed, it is no longer sensitive to the detection of additional flux. A recent strategy in PCD design has been to compensate for detector paralysis by embedding specialized paralysis compensation electronics into the application-
Scott S. Hsieh, Kris Iniewski
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