Patents by Inventor Joel Felmlee

Joel Felmlee 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).

  • Imaging elastic properties of the lung with magnetic resonance elastography
    Publication number: 20060264736
    Abstract: A noble gas is administered to a subject to fill the lungs and magnetic resonance elastography image data is acquired while. vibrations are applied to the chest wall. Shear waves are established in the gas-filled lungs by the vibrations and a shear modulus image is reconstructed from the MRE image data that may be used in the diagnosis of lung disease.
    Type: Application
    Filed: April 20, 2006
    Publication date: November 23, 2006
    Inventors: Richard Ehman, Kiaran McGee, Brian Goss, Joel Felmlee
  • Magnetic resonance imaging of prostate brachytherapy seeds
    Patent number: 6809517
    Abstract: Two magnetic resonance images are acquired of seeds used in brachytherapy of the prostate with different pulse sequences. Phase images and magnitude images are reconstructed and a phase difference image is calculated and combined with the magnitude images. The magnitude images differentiate soft tissues and the phase difference image differentiates the locations of the seeds.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: October 26, 2004
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Kiaran McGee, Joel Felmlee
  • Autocorrection of MR projection images
    Patent number: 6647134
    Abstract: An MRA 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. Corrections are made to the acquired three-dimensional data while the metric which measures image quality is applied to a two-dimensional projection image.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: November 11, 2003
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Kiaran P. McGee, Joel Felmlee, Richard Ehman, Armando Manduca
  • Magnetic resonance imaging of prostate brachytherapy seeds
    Publication number: 20030107375
    Abstract: Two magnetic resonance images are acquired of seeds used in brachytherapy of the prostate with different pulse sequences. Phase images and magnitude images are reconstructed and a phase difference image is calculated and combined with the magnitude images. The magnitude images differentiate soft tissues and the phase difference image differentiates the locations of the seeds.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 12, 2003
    Inventors: Kiaran McGee, Joel Felmlee
  • Phase-aligned NMR surface coil image reconstruction
    Patent number: 5759152
    Abstract: An MRI system employs a multicoil array to acquire NMR data. A calibration scan is performed and a phase map is produced for each coil element in the array. A region of interest in the field of view is identified and corresponding phase values are extracted from each phase map and used to correct the phase of the k-space NMR data set acquired by each coil element in subsequent image scans. The corrected k-space NMR data sets for the coil elements are combined into a single k-space NMR data set to enable an image to be reconstructed therefrom by Fourier transformation.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: June 2, 1998
    Assignee: Mayo Foundation For Medical Education and Research
    Inventors: Joel Felmlee, Josef P. Debbins