Patents by Inventor Yu L. Liu

Yu L. 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).

  • Breath-hold monitor for MR imaging
    Patent number: 5363844
    Abstract: In an NMR system a respiration monitor provides a visual feedback to the patient which enables the patient to perform a series of breath-holds with the patient's diaphragm positioned at the same reference point. This enables NMR data to be acquired over a series of breath-holds without introducing blurring or image artifacts. Between breath-holds a navigator pulse sequence is used to gather NMR data from which diaphragm position is measured, and during each breath-hold the pulse sequence is changed to gather NMR image data.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: November 15, 1994
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Stephen J. Riederer, Yu L. Liu, Richard L. Ehman