Patents by Inventor Yousef Mazahheri

Yousef Mazahheri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dual resolution acquisition of magnetic resonance angiography data with vessel segmentation
    Patent number: 6556856
    Abstract: A magnetic resonance angiogram (MRA) is acquired using a contrast enhancement method in which a series of low resolution NMR images are rapidly acquired during a time resolved phase of the examination in which the contrast bolus makes a first pass through the arteries and veins. Additional, high spatial resolution NMR image data is acquired in a subsequent steady-state phase of the examination. The low resolution NMR image is segmented and masked to depict only arteries, and the central k-space region of this data is combined with the peripheral k-space data portion of the high resolution NMR data to produce one or more images.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: April 29, 2003
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Charles A. Mistretta, Thomas M. Grist, Yousef Mazahheri, Timothy J. Carroll, Jiang Du, Walter Block