Adiabatic magnetization preparation for B1 and B0 insensitive high contrast MRI

• US 8,502,537 B2
• Filed: 04/01/2010
• Issued: 08/06/2013
• Est. Priority Date: 04/02/2009
• Status: Active Grant

• Current Assignee: Regents of The University of Minnesota (University of Minnesota)
• Original Assignee: Regents of The University of Minnesota (University of Minnesota)
• Inventors: Corum, Curtis A., Moeller, Steen, Idiyatullin, Djaudat S., Garwood, Michael G.
• Primary Examiner(s): Vargas, Dixomara
• Application Number:
  US12/752,633
• Publication Number:
  US 20100253340A1
• Time in Patent Office: 1,223 Days
• Field of Search: 324300-322, 600410-435
• US Class Current: 324/314
• CPC Class Codes: G01R 33/4816 NMR imaging of samples with ultrashort relaxation times such as solid samples, e.g. MRI using ultrashort TE [UTE], single point imaging, constant time imaging

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.

Claims

1. A system comprising:

a magnetic resonance scanner; and

a processor coupled to the scanner and configured to provide an excitation sequence to a sample, the excitation sequence including a gapped pulse having swept frequency and swept amplitude, the processor configured to interleave at least one magnetization preparation pulse in the excitation sequence, and configured to acquire spin system data for use in generating an image.

2. The system of claim 1 wherein the magnetic resonance scanner includes an inhomogeneous magnet.

3. The system of claim 1 wherein the processor is configured to provide at least one adiabatic pulse.

4. The system of claim 1 wherein the at least one magnetization preparation pulse includes a hyperbolic secant pulse.