Patents by Inventor Armando Manduca

Armando Manduca 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).

  • Autocorrection of MR images acquired using phased-array coils
    Patent number: 6469506
    Abstract: An MRI image acquired with a phase-array coil is corrected for motion artifacts using an iterative, autocorrection process in which corrections are tried and the quality of the resulting reconstructed image is measured. In one embodiment autocorrections are calculated for the data acquired with one coil element and the same corrections are made to data acquired with the other coil elements. In another embodiment autocorrections are calculated separately for the data acquired with each coil element. In either embodiment, the separate corrected images are combined to form the output image.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: October 22, 2002
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Joel P. Felmlee, Kiaran P. McGee, Richard L. Ehman, Armando Manduca
  • Autocorrection of MR images for motion artifacts
    Patent number: 6329819
    Abstract: An MRI image is corrected for motion artifacts using an iterative, autocorrection process in which corrections are tried and the quality of the resulting reconstructed image is measured. Metrics based on the gradient of the reconstructed image are employed to measure image quality.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: December 11, 2001
    Assignee: Mayo Foundation For Medical Education and Research
    Inventors: Armando Manduca, Richard L. Ehman
  • Autocorrection of 3D MR images for motion artifacts
    Patent number: 6307369
    Abstract: A three-dimensional image data set is acquired with an MRI system and autocorrected to reduce artifacts caused by subject motion during image acquisition. Correction for motion along one or two axes is performed by selecting a 2D slice of data and autocorrecting it to produce phase corrections that are then made to the entire 3D image data set. This may be repeated by autocorrecting an additional 2D slice perpendicular to the first 2D slice to produce phase corrections for the 3D image data set for motion along the third axis.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: October 23, 2001
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Joel P. Felmlee, Kiaran P. McGee, Richard L. Ehman, Armando Manduca
  • Autocorrection of MR images using multiple metrics
    Patent number: 6265874
    Abstract: An MRI image is corrected for motion artifacts using an iterative, autocorrection process in which corrections are tried and the quality of the resulting reconstructed image is measured. Different metrics for evaluating image quality are used during the autocorrection process to take advantage of their different attributes.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: July 24, 2001
    Assignee: Mayo Foundation For Medical Education and Research
    Inventors: Kiaran McGee, Joel P. Felmlee, Richard L. Ehman, Armando Manduca
  • Correction of MR images for motion artifacts using navigator echoes and autocorrection
    Patent number: 6184682
    Abstract: Navigator echo signals are acquired during an MRI scan in which image data is acquired. The navigator echo signals are used to estimate an initial correction of the acquired image data for patient motion during the scan. The initially corrected image data is then autocorrected in an iterative process which measures image quality and makes further corrections to the image data until the measured image quality is within tolerance.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: February 6, 2001
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Richard L. Ehman, Joel P. Felmlee, Armando Manduca, Kiaran P. McGee