Asymmetric single-channel radio frequency helmet coil for magnetic resonance imaging
AssigneeThe General Hospital Corporation
InventorsLawrence L. Wald, Clarissa Zimmerman-Cooley, Patrick C. McDaniel, Sai Abitha Srinivas
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Abstract
Asymmetric, single-channel radio frequency (“RF”) coils are provided for use with portable or other low-field magnetic resonance imaging (“MRI”) systems. In general, the asymmetric, single-channel RF coils make use of asymmetric, optimized winding configurations in order to reduce B1+ inhomogeneities and to reduce signal sensitivity outside of the desired imaging field-of-view (“FOV”).
Claims20
A radio frequency (RF) coil system for performing a magnetic resonance imaging (MRI) process using an MRI system, the RF coil system comprising:
- a substrate configured to follow a contour of a portion of a subject to be imaged by the MRI system;
- and
- at least one RF coil coupled to the substrate and forming an asymmetrical three-dimensional spiral pattern extending over the substrate, wherein the asymmetrical three-dimensional spiral pattern includes adjacent portions of the at least one RF coil that are non-uniformly spaced apart over the substrate.
A single channel radio frequency (RF) coil configured for a portion of human anatomy, the single channel RF coil comprising:
- a conductor arranged in a three-dimensional asymmetrical geometry about a region-of-interest, wherein, when the single channel RF coil is operated in conjunction with performing magnetic resonance of the portion of the human anatomy of a subject, the conductor is configured to produce and detect magnetic fields substantially parallel to a longitudinal axis of the subject's body.
Dependencies are inferred from the claim text.