System and apparatus for reducing high field shading in MR imaging
AssigneeGeneral Electric Company
InventorsSelaka Bandara Bulumulla, Christopher Judson Hardy, Florian Wiesinger
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Abstract
A system for receiving MR data that includes an RF coil array for a magnetic resonance (MR) imaging apparatus. The RF coil array includes a plurality of non-concentric receiver coils arrayed along a first direction. A receiver coil at a first end of the RF coil array has a perimeter width greater than a perimeter width of a receiver coil at a second end of the RF coil array that is opposite from the first end along the first direction.
Claims21
A two-dimensional RF coil array for a magnetic resonance (MR) imaging apparatus comprising:
- a plurality of receiver coil arrays wherein at least one of the receiver coil arrays comprises a plurality of non-concentric receiver coils arrayed along a first direction, wherein a receiver coil at a first end of the at least one receiver coil array has a perimeter width greater than a perimeter width of a receiver coil at a second end of the at least one receiver coil array that is opposite from the first end along the first direction.
A two-dimensional magnetic resonance (MR) coil array comprising:
- a plurality of receiving coil arrays, wherein at least one of the receiving coil arrays comprises
- a first receiving coil having a perimeter that surrounds a first area;
- a second receiving coil having a perimeter that surrounds a second area, wherein the second area is less than the first area, and wherein the second receiving coil is set off in a first direction from the first receiving coil;
- and
- a third receiving coil having a perimeter that surrounds a third area, wherein the third area is less than the second area, and wherein the third receiving coil is set off in the first direction from the second receiving coil.
A magnetic resonance imaging (MRI) apparatus comprising:
- an MRI system having a plurality of gradient coils positioned about a bore of a magnet;
- and
- an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to a two-dimensional phased array to acquire MR images, the two-dimensional phased array comprising:
- a first coil having a first boundary surrounding a first area;
- a second coil having a second boundary surrounding a second area, wherein a length of the second boundary is less than a length of the first boundary;
- a third coil having a third boundary surrounding a third area, wherein a length of the third boundary is less than the length of the second boundary;
- and
- wherein the first, second, and third coils are arrayed along a first direction such that the second coil is offset in a first direction from the first coil and such that the third coil is offset in the first direction from the second coil.
Dependencies are inferred from the claim text.