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

Abstract

A system and method for Fourier encoding a nuclear magnetic resonance (NMR) signal is disclosed. A static magnetic field B.sub.0 is provided along a first direction. An NMR signal from the sample is Fourier encoded by applying a rotating-frame gradient field B.sub.G superimposed on the B.sub.0, where the B.sub.G comprises a vector component rotating in a plane perpendicular to the first direction at an angular frequency .omega.in a laboratory frame. The Fourier-encoded NMR signal is detected.

Inventors:
; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1117841
Patent Number(s):
8,633,693
Application Number:
12/594,341
Assignee:
The Regents of the University of California (Oakland, CA)
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Resource Relation:
Patent File Date: 2008 Apr 02
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Bouchard, Louis-Serge, Pines, Alexander, and Demas, Vasiliki. Rotating-frame gradient fields for magnetic resonance imaging and nuclear magnetic resonance in low fields. United States: N. p., 2014. Web.
Bouchard, Louis-Serge, Pines, Alexander, & Demas, Vasiliki. Rotating-frame gradient fields for magnetic resonance imaging and nuclear magnetic resonance in low fields. United States.
Bouchard, Louis-Serge, Pines, Alexander, and Demas, Vasiliki. Tue . "Rotating-frame gradient fields for magnetic resonance imaging and nuclear magnetic resonance in low fields". United States. https://www.osti.gov/servlets/purl/1117841.
@article{osti_1117841,
title = {Rotating-frame gradient fields for magnetic resonance imaging and nuclear magnetic resonance in low fields},
author = {Bouchard, Louis-Serge and Pines, Alexander and Demas, Vasiliki},
abstractNote = {A system and method for Fourier encoding a nuclear magnetic resonance (NMR) signal is disclosed. A static magnetic field B.sub.0 is provided along a first direction. An NMR signal from the sample is Fourier encoded by applying a rotating-frame gradient field B.sub.G superimposed on the B.sub.0, where the B.sub.G comprises a vector component rotating in a plane perpendicular to the first direction at an angular frequency .omega.in a laboratory frame. The Fourier-encoded NMR signal is detected.},
doi = {},
url = {https://www.osti.gov/biblio/1117841}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {1}
}

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Works referenced in this record:

New approaches to NMR imaging in a rotating field gradient
journal, April 1989


Theory of MRI in the presence of zero to low magnetic fields and tensor imaging field gradients
journal, September 2006


Image artifacts in very low magnetic field MRI: The role of concomitant gradients
journal, June 2005