Inventors:
Martin R. Prince - New York NY, US
Ramin Zabih - New York NY, US
Yi Wang - Pittsburgh PA, US
Richard Watts - Christchurch, NZ
Junhwan Kim - Seoul, KR
Jeff Bezanson - Scarsdale NY, US
Hale Ersoy - Chestnut Hill MA, US
Assignee:
Cornell Research Foundation, Inc. - Ithaca NY
International Classification:
G06K 9/00
Abstract:
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.