19 September 1985 Subtraction Angiography: Comparative Performance And Cost Of Digital Vs. Film Subtraction Methods
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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.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M J Flynn, M J Flynn, S Patel, S Patel, J Zerwekh, J Zerwekh, J Clark, J Clark, S Wilderman, 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); doi: 10.1117/12.949499; https://doi.org/10.1117/12.949499
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