Patents by Inventor Stefan T. Skare

Stefan T. Skare 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).

  • MRI data acquisition using propeller k-space data acquisition
    Patent number: 7535222
    Abstract: Disclosed is a new propeller EPI pulse sequence with reduced sensitivity to field inhomogeneities is proposed. Image artifacts such as blurring due to Nyquist ghosting and susceptibility gradients are investigated and compared with those obtained in previous propeller EPI studies. The proposed propeller EPI sequence uses a readout that is played out along the short axis of the propeller blade, orthogonal to the readout used in previous propeller methods. In contrast to long-axis readout propeller EPI, this causes the echo spacing between two consecutive phase-encoding (PE) lines to decrease, which in turn increases the k-space velocity in this direction and hence the pseudo-bandwidth.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: May 19, 2009
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Roland Bammer, Stefan T. Skare
  • MRI DATA ACQUISITION USING PROPELLER K-SPACE DATA ACQUISITION
    Publication number: 20080157767
    Abstract: Disclosed is a new propeller EPI pulse sequence with reduced sensitivity to field inhomogeneities is proposed. Image artifacts such as blurring due to Nyquist ghosting and susceptibility gradients are investigated and compared with those obtained in previous propeller EPI studies. The proposed propeller EPI sequence uses a readout that is played out along the short axis of the propeller blade, orthogonal to the readout used in previous propeller methods. In contrast to long-axis readout propeller EPI, this causes the echo spacing between two consecutive phase-encoding (PE) lines to decrease, which in turn increases the k-space velocity in this direction and hence the pseudo-bandwidth.
    Type: Application
    Filed: January 2, 2007
    Publication date: July 3, 2008
    Inventors: Roland BAMMER, Stefan T. SKARE