2008
DOI: 10.1097/01.hp.0000326338.14198.a2
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Digital Radiography: Image Quality and Radiation Dose

Abstract: Digital radiography devices, rapidly replacing analog screen-film detectors, are now common in diagnostic radiological imaging, where implementation has been accelerated by the commodity status of electronic imaging and display systems. The shift from narrow latitude, fixed-speed screen-film detectors to wide latitude, variable-speed digital detectors has created a flexible imaging system that can easily result in overexposures to the patient without the knowledge of the operator, thus potentially increasing t… Show more

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Cited by 23 publications
(14 citation statements)
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“…An important finding was that the detector response to radiation was not linear. It was assumed that most detectors would have a linear response to exposure, and therefore allow a wide exposure latitude . Making the assumption of a linear response rather than quantifying it would have resulted in different conclusions since detector noise would not have been accounted for.…”
Section: Discussionmentioning
confidence: 99%
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“…An important finding was that the detector response to radiation was not linear. It was assumed that most detectors would have a linear response to exposure, and therefore allow a wide exposure latitude . Making the assumption of a linear response rather than quantifying it would have resulted in different conclusions since detector noise would not have been accounted for.…”
Section: Discussionmentioning
confidence: 99%
“…A unique characteristic of digital imaging is that, unlike film‐screen radiography, the elements of image capture and display are separate entities. This feature of digital radiography results in the overall image quality, with the exception of noise, to be much less dependent on kVp and mAs . The broad exposure latitude, application of look‐up tables, and processing algorithms, as well as workstation manipulation can all affect contrast of the final image, despite the radiographic technique used.…”
Section: Introductionmentioning
confidence: 99%
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“…For example, the nature of the wide exposure latitude, the physics of Photostimulable Phosphers (PSP) and Photostimulable Luminescence (PSL), image processing algorithms, EIs, and the problem of exposure creep [12] all require a good knowledge and understanding to use the CR system. Such understanding is essential for the correct and appropriate use of the CR system in an effort to optimize dose and image quality, to ensure the ALARA philosophy is adhered to in routine daily operation [13].…”
Section: Literature Reviewmentioning
confidence: 99%