Patents by Inventor Jun Mei Zhang

Jun Mei Zhang 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).

  • Medical image processing methods and systems
    Patent number: 10636146
    Abstract: A medical image processing method of determining a fractional flow reserve through a stenosis of a coronary artery from medical image data is disclosed. The medical image data comprises a set of images of a coronary region of a patient. The coronary region includes the stenosis. The method comprises: reconstructing a three dimensional model of a coronary artery tree of the patient from the medical image data; determining stenosis dimensions from the three dimensional model of the coronary artery tree of the patient; simulating blood flow in the three dimensional model of the coronary artery tree of the patient to determine modeled flow rates; using an analytical model depending on the stenosis dimensions to predict a modeled pressure drop over the stenosis from the modeled flow rates; and determining the fractional flow reserve through the stenosis from the modeled pressure drop.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: April 28, 2020
    Assignee: Singapore Health Services Pte Ltd
    Inventors: Liang Zhong, Jun Mei Zhang, Ru San Tan
  • MEDICAL IMAGE PROCESSING METHODS AND SYSTEMS
    Publication number: 20180089829
    Abstract: A medical image processing method of determining a fractional flow reserve through a stenosis of a coronary artery from medical image data is disclosed. The medical image data comprises a set of images of a coronary region of a patient. The coronary region includes the stenosis. The method comprises: reconstructing a three dimensional model of a coronary artery tree of the patient from the medical image data; determining stenosis dimensions from the three dimensional model of the coronary artery tree of the patient; simulating blood flow in the three dimensional model of the coronary artery tree of the patient to determine modeled flow rates; using an analytical model depending on the stenosis dimensions to predict a modeled pressure drop over the stenosis from the modeled flow rates; and determining the fractional flow reserve through the stenosis from the modeled pressure drop.
    Type: Application
    Filed: May 6, 2016
    Publication date: March 29, 2018
    Inventors: Liang Zhong, Jun Mei Zhang, Ru San Tan