Subtraction Angiography: Comparative Performance And Cost Of Digital Vs. Film Subtraction Methods

M J Flynn; S Patel; J Zerwekh; J Clark; S Wilderman

doi:10.1117/12.949499

19 September 1985 Subtraction Angiography: Comparative Performance And Cost Of Digital Vs. Film Subtraction Methods

M J Flynn, S Patel, J Zerwekh, J Clark, S Wilderman

Proceedings Volume 0555, Medical Imaging and Instrumentation '85; (1985) https://doi.org/10.1117/12.949499
Event: Medical Imaging and Instrumentation '85, 1985, Boston, United States

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.

Citation Download Citation

M J Flynn, S Patel, J Zerwekh, J Clark, and S Wilderman "Subtraction Angiography: Comparative Performance And Cost Of Digital Vs. Film Subtraction Methods", Proc. SPIE 0555, Medical Imaging and Instrumentation '85, (19 September 1985); https://doi.org/10.1117/12.949499

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