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Proceedings Paper

Hybrid Subtraction In Digital Fluorography
Author(s): G. S. Keyes; S. J. Riederer; B. F. Belanger; W. R. Brody
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Paper Abstract

Digital fluorography using temporal subtraction techniques has achieved excellent visualization of the vascular anatomy with intravenous injections of contrast medium. However, clinical studies have demonstrated that a major limitation to this method is patient motion. Movements such as swallowing, breathing, peristalsis, cardiac motion, and arterial pulsations cause artifacts in difference images which can reduce the diagnostic accuracy of the procedure. Many of these artifacts can be eliminated by the use of hybrid subtraction, a second-order technique which combines temporal and dual-energy subtraction. This procedure is described and compared to both temporal and dual energy subtraction methods in terms of data acquisition, iodine signal-to-noise ratios, dose, and x-ray tube loading. Images are shown to demonstrate the viability of this new technique.

Paper Details

Date Published: 29 December 1982
PDF: 8 pages
Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); doi: 10.1117/12.933804
Show Author Affiliations
G. S. Keyes, General Electric Company (United States)
S. J. Riederer, General Electric Company (United States)
B. F. Belanger, General Electric Company (United States)
W. R. Brody, Stanford University School of Medicine (United States)


Published in SPIE Proceedings Vol. 0347:
Application of Optical Instrumentation in Medicine X
Gary D. Fullerton; James A. Mulvaney; Arthur G. Haus; William S. Properzio, Editor(s)

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