Single-sided fast MRI gradient field coils and applications thereof
AssigneePromaxo, Inc.
InventorsAleksandar Nacev, Pulkit Malik
Life of this patent
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Abstract
A single-sided gradient coil set for single-sided magnetic resonance imaging system is disclosed. The coil set is configured to generate a magnetic field outwards away from the coil set. The coil set includes one or more first spiral coils at a first position relative to the aperture and one or more second spiral coils at a second position relative to the aperture. The coil set is configure to flow a current through the one or more first spiral coils and the one or more second spiral coils to generate an electromagnetic field gradient configured to project away from the coil set and into an imaging region of the magnetic imaging system.
Claims31
A magnetic imaging apparatus comprising:
- a power source for providing a current;
- and
- a single-sided gradient coil set connected to the power source, wherein the coil set is configured to generate an electromagnetic field gradient having a rise time less than about 10 μs and configured to project away from the coil set and into an imaging region of the magnetic imaging apparatus, wherein the coil set comprises:
- an aperture, and
- one or more first spiral coils at a first position relative to the aperture and one or more second spiral coils at a second position relative to the aperture, the first position being across from the second position with respect to the aperture, wherein a primary first spiral coil of the one or more first spiral coils and a secondary first spiral coil of the one or more first spiral coils adjacent to the primary first spiral coil overlap by up to 50% to generate a more parallel first electromagnetic field gradient.
A method for using a magnetic imaging apparatus comprising:
- providing a power source;
- providing a single-sided gradient coil set connected to the power source;
- turning on the power source so as to flow a current through the coil set, wherein the coil set comprises:
- an aperture, and
- one or more first spiral coils at a first position relative to the aperture and one or more second spiral coils at a second position relative to the aperture, the first position being across from the second position with respect to the aperture, wherein a primary first spiral coil of the one or more first spiral coils and a secondary first spiral coil of the one or more first spiral coils adjacent to the primary first spiral coil overlap by up to 50% to generate a more parallel first electromagnetic field gradient;
- generating an electromagnetic field gradient having a rise time less than about 10 μs;
- and
- projecting the electromagnetic field gradient away from the coil set and into an imaging region of the magnetic imaging apparatus.
Dependencies are inferred from the claim text.