Method and apparatus for magnetic resonance analysis
AssigneeBBMS Ltd.
InventorsEhud Katzenelson, Uzi Dan, Alex Harel
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Abstract
A method of designing a magnetic structure for providing a monotonic static magnetic field for magnetic resonance analysis. The method comprises: selecting a first geometry defining a volume-of-interest and selecting a magnetic field query, which is defined on a plurality of coordinates within the first geometry, the magnetic field query being monotonic. The method further comprises selecting a second geometry defining the magnetic structure and calculating a remanence distribution within the second geometry, by using the first geometry, the second geometry and the magnetic field query.
Claims199
A method of designing a magnetic structure for providing a monotonic static magnetic field for magnetic resonance analysis, the method comprising:
- selecting a first geometry defining a volume-of-interest;
- selecting a magnetic field query, defined on a plurality of coordinates within said first geometry, said magnetic field query being monotonic;
- selecting a second geometry defining the magnetic structure;
- and
- calculating a remanence distribution within said second geometry by using said first geometry, said second geometry and said magnetic field query, thereby designing the magnetic structure.
A magnetic structure for magnetic resonance analysis, the magnetic structure comprising a plurality of domains, arranged within a volume having predetermined geometry, each of said plurality of domains being characterized by a predetermined and different magnetization vector;
- wherein said predetermined geometry and said plurality of domains are selected so as to generate a monotonic static magnetic field having a gradient.
An apparatus for magnetic resonance analysis, the apparatus comprising:
- a processing unit;
- a radiofrequency coil designed and configured for generating a broad-band radiofrequency magnetic field;
- and
- a magnetic structure for generating a monotonic static magnetic field having a gradient, said magnetic structure comprising a plurality of domains, said plurality of domains being arranged within a volume having predetermined geometry, each of said plurality of domains being characterized by a predetermined and different magnetization vector, wherein said predetermined geometry and said plurality of domains are selected so as to generate said monotonic static magnetic field.
A magnetic structure for magnetic resonance analysis, comprising a structure defined according to a remanence distribution, said remanence distribution being determined according to a first geometry for defining a volume-of-interest, a second geometry for defining the magnetic structure and a magnetic field query being defined on a plurality of coordinates within said first geometry, said magnetic field query being monotonic.
A system for analyzing an object, the system comprising:
- a processing unit;
- a first imaging device;
- and
- a magnetic resonance probe, said magnetic resonance probe comprising a radiofrequency coil, designed and configured for generating a broad-band radiofrequency magnetic field, and a magnetic structure for generating a monotonic static magnetic field having a gradient, said magnetic structure comprising a plurality of domains, said plurality of domains being arranged within a volume having predetermined geometry, each of said plurality of domains being characterized by a predetermined and different magnetization vector, wherein said predetermined geometry and said plurality of domains are selected so as to generate said monotonic static magnetic field.
The system of claim, 83 wherein said first imaging device is an optical imaging device.
A system for analyzing an object, the system comprising:
- a processing unit;
- a magnetic resonance probe;
- and
- a position tracking system for determining a position of said magnetic resonance probe;
- wherein said magnetic resonance probe comprising a radiofrequency coil, designed and configured for generating a broad-band radiofrequency magnetic field, and a magnetic structure for generating a monotonic static magnetic field having a gradient, said magnetic structure comprising a plurality of domains, said plurality of domains being arranged within a volume having predetermined geometry, each of said plurality of domains being characterized by a predetermined and different magnetization vector, wherein said predetermined geometry and said plurality of domains are selected so as to generate said monotonic static magnetic field.
Dependencies are inferred from the claim text.