Patents by Inventor Xecheng Liu

Xecheng Liu 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).

  • Prescan calibration of spatially dependent data errors in single echo sequences
    Patent number: 6313629
    Abstract: A method of magnetic resonance imaging includes subjecting a number of regions of an object being imaged to a magnetic resonance calibration pulse sequence. Each calibration pulse sequence generates a single calibration echo. Each of the calibration echoes are collected and therefrom correction factors are generated. Thereafter, the method includes subjecting the regions of the object being imaged to a plurality of magnetic resonance imaging pulse sequences. Each of the imaging pulse sequences generates a single imaging echo. Each imaging echo is collected into k-space as a plurality of sampled data points. The plurality of sampled data points are adjusted in accordance with the correction factors as each imaging echo is collected into k-space.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: November 6, 2001
    Assignee: Picker International, Inc.
    Inventors: Xecheng Liu, Francis H. Bearden