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Proceedings Paper

Subtraction Angiography: Comparative Performance And Cost Of Digital Vs. Film Subtraction Methods
Author(s): M J Flynn; S Patel; J Zerwekh; J Clark; S Wilderman
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Paper Abstract

The radiation dose, image signal-to-noise ratio, image resolution and cost of film/screen and digital subtraction angiography have been investigated. Theoretical analysis indicates that the dose normalized signal-to-noise ratio for DSA is 50% better than film/screen methods. Iodinated vessel phantoms have confirmed this result. An evaluation of 55 patients indicates improved small vessel detection, better delineation of diffuse contrast stains, and fewer artifacts with DSA when compared with film/screen results on the same patients. Substantial reduction in cost for DSA methods is attributed to film utilization reduction as well as reduced examining times.

Paper Details

Date Published: 19 September 1985
PDF: 8 pages
Proc. SPIE 0555, Medical Imaging and Instrumentation '85, (19 September 1985); doi: 10.1117/12.949499
Show Author Affiliations
M J Flynn, Henry Ford Hospital (United States)
S Patel, Henry Ford Hospital (United States)
J Zerwekh, Henry Ford Hospital (United States)
J Clark, Henry Ford Hospital (United States)
S Wilderman, Henry Ford Hospital (United States)


Published in SPIE Proceedings Vol. 0555:
Medical Imaging and Instrumentation '85
James A. Mulvaney, Editor(s)

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