Rotating-frame gradient fields for magnetic resonance imaging and nuclear magnetic resonance in low fields

US8633693B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Louis Bouchard · Los Angeles, US
• Alexander Pines · Berkeley, US
• Vasiliki Demas · San Jose, US

Key dates

• Filing date: Apr 2, 2008
• Grant date: Jan 21, 2014
• Expiry date: Sep 28, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/56581
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system and method for Fourier encoding a nuclear magnetic resonance (NMR) signal is disclosed. A static magnetic field B0 is provided along a first direction. An NMR signal from the sample is Fourier encoded by applying a rotating-frame gradient field BG superimposed on the B0, where the BG comprises a vector component rotating in a plane perpendicular to the first direction at an angular frequency ω in a laboratory frame. The Fourier-encoded NMR signal is detected.