Michael G. Garwood - Medina MN, US Djaudat S. Idiyatullin - New Brighton MN, US Curtis A. Corum - Shoreview MN, US Steen Moeller - Golden Valley MN, US
Assignee:
Regents of the University of Minnesota - St. Paul MN
International Classification:
G01V 3/00
US Classification:
324307
Abstract:
A method of magnetic resonance is provided that uses a frequency swept excitation wherein the acquired signal is a time domain signal is provided. In one embodiment, the method comprises, applying a sweeping frequency excitation and acquiring a time domain signal. The sweeping frequency excitation has a duration and is configured to sequentially excite isochromats having different resonant frequencies. Acquisition of the time domain signal is done during the duration of the sweeping frequency excitation. The time domain signal is based on evolution of the isochromats.
Rf Pulse Distortion Correction
US Patent:
8212560, Jul 3, 2012
Filed:
Apr 9, 2009
Appl. No.:
12/384888
Inventors:
Steen Moeller - St. Louis Park MN, US Michael G. Garwood - Medina MN, US Curtis A Corum - Shoreview MN, US Djaudat S. Idiyatullin - Minneapolis MN, US
Assignee:
Regents of the University of Minnesota - St. Paul MN
International Classification:
G01V 3/00
US Classification:
324309
Abstract:
This document discloses, among other things, a method for removing a bullseye artifact from a radial image generated using magnetic resonance and using a swept frequency pulse.
Adiabatic Magnetization Preparation For B1 And B0 Insensitive High Contrast Mri
US Patent:
8502537, Aug 6, 2013
Filed:
Apr 1, 2010
Appl. No.:
12/752633
Inventors:
Curtis A. Corum - Shoreview MN, US Steen Moeller - Golden Valley MN, US Djaudat S. Idiyatullin - New Brighton MN, US Michael G. Garwood - Medina MN, US
Assignee:
Regents of the University of Minnesota - St. Paul MN
International Classification:
G01V 3/00
US Classification:
324314
Abstract:
A magnetic resonance image is produced by radial imaging using one or more preparatory pulses. The magnetic preparation pulse can include one or more adiabatic pulses.
Pulse Gap Cycling For Improved Swift
US Patent:
8519707, Aug 27, 2013
Filed:
Apr 1, 2010
Appl. No.:
12/752668
Inventors:
Curtis A Corum - Shoreview MN, US Djaudat S. Idiyatullin - New Brighton MN, US Steen Moeller - Golden Valley MN, US Michael G. Garwood - Medina MN, US
Assignee:
Regents of the University of Minnesota - St. Paul MN
International Classification:
G01V 3/00
US Classification:
324307
Abstract:
A magnetic resonance image is produced by shifting a gap during acquisition of spin data for a specimen. The spin data is generated by a gapped excitation sequence.
Mri Contrast Using High Transverse Relaxation Rate Contrast Agent
US Patent:
20090264733, Oct 22, 2009
Filed:
Apr 16, 2009
Appl. No.:
12/425113
Inventors:
Curtis A. Corum - Shoreview MN, US Michael G. Garwood - Medina MN, US Djaudat S. Idiyatullin - Minneapolis MN, US Steen Moeller - St. Louis park MN, US
Assignee:
Regents of the University of Minnesota - St. Paul MN
International Classification:
A61B 5/055
US Classification:
600420
Abstract:
This document discloses, among other things, a system and method of creating a positive contrast magnetic resonance imaging (MRI) feature using a high transverse relaxation rate contrast agent.
Dipole Matched Filter For Mri
US Patent:
20110116696, May 19, 2011
Filed:
Nov 9, 2010
Appl. No.:
12/942658
Inventors:
Curtis A. Corum - Shoreview MN, US Michael G. Garwood - Medina MN, US Steen Moeller - Golden Valley MN, US Djaudat S. Idiyatullin - New Brighton MN, US Ryan Chamberlain - Maplewood MN, US
Assignee:
Regents of the University of Minnesota - St. Paul MN
International Classification:
G06K 9/00
US Classification:
382131
Abstract:
A method includes receiving k-space data corresponding to magnetic resonance data for a subject and selecting a template for analysis. In addition, the method includes generating an image using the k-space data and using the template.
Localisation Of Magnetic Particles By Means Of Swift-Mri
US Patent:
20120092010, Apr 19, 2012
Filed:
Apr 1, 2010
Appl. No.:
13/262397
Inventors:
Curtis A. Corum - Shoreview MN, US Djaudat S. Idiyatullin - New Brighton MN, US Steen Moeller - Golden Valley MN, US Michael G. Garwood - Medina MN, US
Assignee:
Regents of the Univeristy of Minnesota - St Paul MN
International Classification:
G01R 33/48 G01R 33/32
US Classification:
324309, 324318
Abstract:
Positive contrast localization of magnetic (e.g. superparamagnetic) particles in vivo or in vitro by means of SWIFT-MRI using the imaginary component of MR image data in combination with an anatomic reference image derived from the real or magnitude component.
Sideband Processing For Magnetic Resonance
US Patent:
20130043867, Feb 21, 2013
Filed:
Jun 19, 2012
Appl. No.:
13/527283
Inventors:
Curtis A. Corum - Shoreview MN, US Steen Moeller - Golden Valley MN, US Djaudat S. Idiyatullin - New Brighton MN, US Ryan Chamberlain - Maplewood MN, US Michael G. Garwood - Medina MN, US
Assignee:
Regents of the University of Minnesota - St. Paul MN
International Classification:
G01R 33/54 G01R 33/56
US Classification:
324309
Abstract:
A method includes applying a pulse train to a spin system in a scanner. The pulse train has a plurality of discontinuities in a time domain. The method includes receiving a response from the spin system. The response corresponds to a gated signal. The method includes accessing a correction factor corresponding to the scanner. The method includes calculating a correction to the response based on the correction factor. The method includes generating an output based on the correction.
