Schwegman, Lundberg, & Woessner P.A.
System and method for generating composite substraction images for magnetic resonance imaging
In time-resolved contrast-enhanced magnetic resonance angiography, a measure quantifying image quality provides a basis for generating a linear filtered composite image by facilitating selection of a mask and an arterial phase image for subtraction. Filtering of individual pixels of a temporal series of images provides enhanced contrast in a single image by allowing the temporal behavior of the pixel intensity to denote representation as an artery, vein or background tissue. Motion artifacts are suppressed by re-registering sequential images, adjusting weighting before averaging and subtraction and filtering the Fourier data to eliminate data corrupted by motion or other phenomena.
Cornell Research Foundation, Inc.
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Junhwan Ramin Jeff Hale Richard Martin R. Yi
Kim Zabih Bezanson Ersoy Watts Prince Wang