Patents by Inventor Dwight B. Nishimura

Dwight B. Nishimura 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).

  • Rapid measurement of time-averaged blood flow using ungated spiral phase-contrast MRI
    Patent number: 6957097
    Abstract: Pulsatile flow is measured using magnetic resonance imaging without cardiac gating using a phase-contrast excitation method to rapidly quantify blood flow and using a spiral k-space trajectory for image data read-out to mitigate deleterious effects of pulsatility. Post-processing of the read-out data provides a cumulative-average velocity plot from which a period of a cardiac cycle is obtained. Time-averaged blood flow rates can be rapidly and robustly measured and is more repeatable than conventional gated techniques.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: October 18, 2005
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jong B. Park, Dwight B. Nishimura