Magnetic field homogenization in NMR spectroscopy

US5121060A · kind A · utility

Assignee

• The University Of Queensland · AU

Inventors

• David M. Doddrell · Brisbane, AU
• Graham John Galloway · Calle de la Era, AU
• Ian Malcolm Brereton · Forsayth, AU

Key dates

• Filing date: Jun 15, 1990
• Grant date: Jun 9, 1992
• Expiry date: Jun 15, 2010

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/3875
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for providing B.sub.0 homogeneity at voxels away from the magnet isocenter for use in volume selected NMR spectroscopy wherein voxels are shimmed using only first-order X, Y and Z shims to produce three dimensional shim current maps that are utilized in setting up for in vivo spectroscopy.