منابع مشابه
Breakthroughs in Radiography: Computed Radiography
CE Email comments/questions to [email protected], fax 800-556-3288, or log on to www.VetLearn.com Computed radiography (CR) is a digital imaging technology and digital x-ray image management system that has been used in human and veterinary medicine since the 1980s. CR helps eliminate many of the disadvantages of traditional radiography. A storage phosphor plate collects the pattern of x...
متن کاملComputed Radiography in Perspective
Introduction Imagine the excitement accompanying the first realization that noninvasive visualization of bones was possible. German physicist Wilhelm Conrad Roentgen was working in a darkened room on November 8, 1895, experimenting with electrical charges flowing through a vacuum tube, when a piece of paper coated with barium platinum cyanide glowed. Coincidentally, it had been left near a card...
متن کاملArtefacts found in computed radiography.
Artefacts on radiographic images are distracting and may compromise accurate diagnosis. Although most artefacts that occur in conventional radiography have become familiar, computed radiography (CR) systems produce artefacts that differ from those found in conventional radiography. We have encountered a variety of artefacts in CR images that were produced from four different models plate reader...
متن کاملComputed Radiography Technology 2004
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 The CR System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Image Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Point-Scan CR Readers . . . . . . . . . . . . . . . . . ...
متن کاملComputed Radiography dose optimization in pediatric patients
Radiation dose reduction in pediatric X-ray imaging is especially important because of children radiation sensitivity. For any radiographic examination performed at a fixed radiographic tube potential, the patient absorbed dose is directly proportional to the value of milliampere-seconds (mAs) selected by the operator. Nevertheless, reducing X-ray exposure has the unavoidable disadvantage of in...
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ژورنال
عنوان ژورنال: Acta Radiologica
سال: 1995
ISSN: 0284-1851,1600-0455
DOI: 10.1080/02841859509173402