Radio frequency coil-array for magnetic resonance examination system
First Claim
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1. A radiofrequency (RF) coil array comprising:
- multiple RF coil elements,sets of transformers arranged between adjacent RF coil elements andtransformers of said sets having a mutual coupling that compensates for a mutual coupling between the adjacent RF coil elements, and whereinthe multiple coils arranged in a two-dimensional pattern that is spanned by a first and a second principal axis,mutually transverse diagonal axes each having an orientation between the first and second principal axes,a first transformer decoupling the coils offset along the first diagonal axis,a second transformer decoupling the coils offset along the second diagonal axis,wherein the first and second transformers are coupled to compensate coupling between coils offset along the second principal axis.
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Abstract
A radio frequency (RF) coil array with multiple RF coil elements for a magnetic resonance examination system is disclosed. The decoupling of RF coil elements involves sets (pairs) of transformers and may also include geometrical overlap of adjacent coils. The mutual coupling between the transformers is adjustable. This provides additional degrees of freedom to fully decouple the RF coil elements from each other.
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13 Claims
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1. A radiofrequency (RF) coil array comprising:
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multiple RF coil elements, sets of transformers arranged between adjacent RF coil elements and transformers of said sets having a mutual coupling that compensates for a mutual coupling between the adjacent RF coil elements, and wherein the multiple coils arranged in a two-dimensional pattern that is spanned by a first and a second principal axis, mutually transverse diagonal axes each having an orientation between the first and second principal axes, a first transformer decoupling the coils offset along the first diagonal axis, a second transformer decoupling the coils offset along the second diagonal axis, wherein the first and second transformers are coupled to compensate coupling between coils offset along the second principal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification