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Research Abstracts Online
January 2010 - March 2011

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Augsburg College
Department of Mathematics

PI: Sridevi Pudipeddi

Estimation of Mask Image in DSA

Digital Subtraction Angiography (DSA) is an x-ray imaging modality for visualizing blood vessels. The DSA image is obtained by the logarithmic subtraction of an x-ray image with and without contrast agent in the blood vessel, called contrast image and mask image respectively. The aim of this work is to estimate the mask image from the given contrast image. Since the mask image will be estimated using the contrast image, the patient in a clinical setup will receive fewer x-ray doses for the same DSA protocol.