skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System and method for magnetic current density imaging at ultra low magnetic fields

Patent ·
OSTI ID:1241354

Preferred systems can include an electrical impedance tomography apparatus electrically connectable to an object; an ultra low field magnetic resonance imaging apparatus including a plurality of field directions and disposable about the object; a controller connected to the ultra low field magnetic resonance imaging apparatus and configured to implement a sequencing of one or more ultra low magnetic fields substantially along one or more of the plurality of field directions; and a display connected to the controller, and wherein the controller is further configured to reconstruct a displayable image of an electrical current density in the object. Preferred methods, apparatuses, and computer program products are also disclosed.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Number(s):
9,254,097
Application Number:
13/622,940
OSTI ID:
1241354
Resource Relation:
Patent File Date: 2012 Sep 19
Country of Publication:
United States
Language:
English

References (23)

Toward direct mapping of neuronal activity: MRI detection of ultraweak, transient magnetic field changes journal June 2002
SQUID-Based Simultaneous Detection of NMR and Biomagnetic Signals at Ultra-Low Magnetic Fields journal June 2005
SQUID detected NMR in microtesla magnetic fields journal September 2004
Liquid-State NMR and Scalar Couplings in Microtesla Magnetic Fields journal March 2002
Directly mapping magnetic field effects of neuronal activity by magnetic resonance imaging journal August 2003
Zeugmatography process patent June 1983
Apparatus and method for generating short pulses for NMR and NQR processing patent September 1998
Electrical impedance tomography method and apparatus patent July 1999
Magnetic resonance—electrical impedance tomography patent May 2002
Temperature compensated magnetic field apparatus for NMR measurements patent June 2003
Method and apparatus for high resolution ex-situ NMR spectroscopy patent January 2004
Nuclear resonance based scanning system having an automatic object identification and attribute information acquisition and linking mechanism integrated therein patent June 2006
Remote NMR/MRI detection of laser polarized gases patent June 2006
NMR and MRI apparatus and method patent March 2007
Method and apparatus for detecting contraband using radiated compound signatures patent July 2007
Mine detector with NQR-SQUID patent July 2008
Method for determining the content of at least one component of a sample by means of a nuclear magnetic resonance pulse spectrometer patent July 2008
Method for molecule examination by NMR spectroscopy patent June 2009
Direct imaging of neural currents using ultra-low field magnetic resonance techniques patent August 2009
Current density impedance imaging (CDII) patent October 2009
Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials patent March 2010
Noise cancellation in magnetoencephalography and electroencephalography with isolated reference sensors patent June 2010
Method of Performing MRI with an Atomic Magnetometer patent-application April 2010