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26 December 1979 Computed Radiography-A Low Dose X-Ray Imaging System
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Abstract
Scatter radiation in diagnostic radiology is recognized as an agent that adds noise to the imaging system and increases patient dose. A prototype computed radiography (CR) system by General Electric uses a highly collimated, 1.5 mm FWHM, pulsed fan-beam of x-rays, good geometry and well collimated xenon gas detector array to virtually eliminate scatter radiation resulting in high contrast sensitivity and low patient dose. The detectors with their high signal-to-noise ratio, wide dynamic range and large x-ray quantum efficiency provide added benefit in terms of wide latitude and reduced dose to the patient. The CR system is found to use radiation more efficiently than film-screen-grid standard radiography systems for imaging low-contrast objects in parts of the body such as abdomen.
© (1979) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. K. Wagner, G. Cohen, S. R. Amtey, F. A. DiBianca, and R. G. Lester "Computed Radiography-A Low Dose X-Ray Imaging System", Proc. SPIE 0206, Recent and Future Developments in Medical Imaging II, (26 December 1979); https://doi.org/10.1117/12.958197
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