Shielded multix coil array for parallel high field MRI
AssigneeKoninklijke Philips Electronics N.V.
InventorChristoph Leussler
Life of this patent
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Abstract
A coil arrangement (32) comprises individual coil segments (381, 382, . . . , 38n) disposed adjacently one another adjacent an examination field (14). At least one radio frequency shield (40) is associated with the coil segments (381, 382, . . . , 38n). The radio frequency shield (40) has a first portion (70), which shields the associated coil segments from adjacent magnetic field and magnetic field gradient generating coils (20, 30), and side elements (72, 74), which shield the coil segments or groups of the segments from each other.
Claims20
A coil arrangement comprising:
- individual coil segments disposed adjacently one another adjacent an examination field;
- and
- at least one radio frequency shield associated with the coil segments, which radio frequency shield has a first portion, which shields the associated coil segments from adjacent magnetic field and magnetic field gradient generating coils, and side elements, which shield the coil segments or groups of the coil segments from each other.
A magnetic resonance method comprising:
- generating a substantially spatially and temporally constant magnetic field in an examination region;
- imposing selected magnetic field gradients on the main magnetic field within the examination region;
- disposing individual coil segments or groups of coil segments adjacently one another adjacent the examination region;
- shielding each individual or group of coil segments from adjacent coil segment;
- and
- conducting a magnetic resonance sequence including applying RF pulses to and receiving resonance signals with the coil segments.
A magnetic resonance system comprising:
- a main magnet which generates a main magnetic field through an examination region;
- a plurality of RF coils disposed adjacent the examination region;
- and
- at least one RF shield which shields the RF coils from the main magnet and from each other.
Dependencies are inferred from the claim text.