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Proceedings Paper

Radiation Dose Reduction Methods For Use With Fluoroscopic Imaging, Computers And Implications For Image Quality
Author(s): E. W. Edmonds; D. M. Hynes; J. A. Rowlands; B. D. Toth; A. J. Porter
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Paper Abstract

The use of a beam splitting device for medical gastro-intestinal fluoroscopy has demonstrated that clinical images obtained with a 100mm photofluorographic camera, and a 1024 X 1024 digital matrix with pulsed progressive readout acquisition techniques, are identical. In addition, it has been found that clinical images can be obtained with digital systems at dose levels lower than those possible with film. The use of pulsed fluoroscopy with intermittent storage of the fluoroscopic image has also been demonstrated to reduce the fluoroscopy part of the examination to very low dose levels, particularly when low repetition rates of about 2 frames per second (fps) are used. The use of digital methods reduces the amount of radiation required and also the heat generated by the x-ray tube. Images can therefore be produced using a very small focal spot on the x-ray tube, which can produce further improvement in the resolution of the clinical images.

Paper Details

Date Published: 27 June 1988
PDF: 5 pages
Proc. SPIE 0914, Medical Imaging II, (27 June 1988); doi: 10.1117/12.968766
Show Author Affiliations
E. W. Edmonds, Mohawk College and McMaster University (Canada)
D. M. Hynes, St. Joseph's Health Centre (Canada)
J. A. Rowlands, St. Joseph's Health Centre (Canada)
University of Toronto (Canada)
B. D. Toth, St. Joseph's Health Centre (Canada)
A. J. Porter, St. Joseph's Health Centre (Canada)

Published in SPIE Proceedings Vol. 0914:
Medical Imaging II
Samuel J. Dwyer; Roger H. Schneider; Samuel J. Dwyer; Roger H. Schneider; Roger H. Schneider; Samuel J. Dwyer, Editor(s)

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