Spatially coincident MRI receiver coils and method for manufacturing
AssigneeMayo Foundation for Medical Education and Research
InventorJoel P. Felmlee
Life of this patent
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Abstract
A magnetic resonance imaging receiver coil provides for high SNR and high uniformity over a range of loading conditions with layers, or stacks, of independent conductive elements. The plurality of layers preload the receiver coil reducing the circuit variation as the subject coupling and loading varies. The preload is such that coil performance, or SNR, is maintained over a large range of impedance variation. This configuration is designed to exceed the performance of single trace coils over a range of impedance consistent with variations associated with different subjects, and may also incorporate coils of different resonance frequencies.
Claims9
A radio frequency (RF) coil for use with a magnetic resonance system, comprising:
- an insulating layer extending from a top surface to a bottom surface to define a thickness of the insulating layer;
- a first conductor element alternating between the top surface of the insulating layer and the bottom surface of the insulating layer;
- a second conductor element that is electrically independent from the first conductor element and alternating between the top surface of the insulating layer and the bottom surface of the insulating layer;
- a plurality of vias, each of the plurality of vias extending through the insulating layer from the top surface to the bottom surface;
- and
- wherein the first conductor element alternates between the top surface of the insulating layer and the bottom surface of the insulating layer while the second conductor element respectively alternates between the bottom surface and the top surface of the insulating layer at each of the plurality of vias such that the first conductor element and the second conductor element share a substantially similar field-of-view.
Dependencies are inferred from the claim text.