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Proceedings Paper

Digital methods for reducing radiation exposure during medical fluoroscopy
Author(s): Ernest W. Edmonds; John A. Rowlands; David M. Hynes; B. D. Toth; Anthony J. Porter
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Paper Abstract

There is increased concern over radiation exposure to the general population from many sources. One of the most significant sources is that received by the patient during medical diagnostic procedures, and of these, the procedure with the greatest potential hazard is fluoroscopy. The legal limit for fluoroscopy in most jurisdictions is SR per minute skin exposure rate. Fluoroscopes are often operated in excess of this figure, and in the case of interventional procedures, fluorocopy times may exceed 20 minutes. With improvements in medical technology these procedures are being performed more often, and also are being carried out on younger age groups. Radiation exposure during fluoroscopy, both to patient and operator, is therefore becoming a matter of increasing concern to regulating authorities, and it is incumbent on us to develop digital technology to minimise the radiation hazard in these procedures. This paper explores the technical options available for radiation exposure reduction, including pulsed fluoroscopy, digital noise reduction, or simple reduction in exposure rate to the x-ray image intensifier. We also discuss educational aspects of fluoroscopy which radiologists should be aware of which can be more important than the technological solutions. A "work in progress" report gives a completely new approach to the implementation of a large number of possible digital algorithms, for the investigation of clinical efficacy.

Paper Details

Date Published: 1 July 1990
PDF: 6 pages
Proc. SPIE 1231, Medical Imaging IV: Image Formation, (1 July 1990); doi: 10.1117/12.18818
Show Author Affiliations
Ernest W. Edmonds, Mohawk College and McMaster Univ. (Canada)
John A. Rowlands, Univ. of Toronto and St. Joseph's Health Ctr. (Canada)
David M. Hynes, Univ. of Toronto and St. Joseph's Health Ctr. (Canada)
B. D. Toth, St. Joseph's Health Ctr. (Canada)
Anthony J. Porter, St. Joseph's Health Ctr. (Canada)

Published in SPIE Proceedings Vol. 1231:
Medical Imaging IV: Image Formation
Roger H. Schneider, Editor(s)

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