External mri imaging coil arrays and mri-guided...

G - Physics – 01 – R

Patent

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Details

G01R 33/3415 (2006.01) G01R 33/28 (2006.01)

Patent

CA 2700529

An MRI imaging coil assembly includes a primary external MRI imaging coil and a secondary external MRI imaging coil positioned proximate to the primary MRI imaging coil. The primary imaging coil has a plurality of spaced-apart RF coils and is configured to surround at least a portion of a patient. The secondary imaging coil has at least one RF coil and cooperates with the primary imaging coil to provide MRI signals to an MRI scanner. The secondary imaging coil can be movably positioned relative to the primary imaging coil. The secondary imaging coil can be movably secured to the primary imaging coil or to a patient support surface. The coil aasembly may form part of an MRI-guided interventional system comprising a frame secured to the skull of a patient wherein the frame cannula for guiding the placement of an interventional device.

L'invention concerne un ensemble de bobines pour IRM comprenant une bobine externe primaire et une bobine externe secondaire positionnée à proximité de la bobine primaire. La bobine d'imagerie primaire comporte une pluralité de bobines HF espacées et est configurée pour entourer au moins une partie d'un patient. La bobine d'imagerie secondaire comporte au moins une bobine HF et coopère avec la bobine d'imagerie primaire pour générer des signaux d'IRM vers un dispositif de balayage IRM. La bobine d'imagerie secondaire peut être placée amovible par rapport à la bobine d'imagerie primaire et peut être fixée amovible à la bobine d'imagerie primaire ou à une surface de support d'un patient. L'ensemble de bobines peut faire partie intégrante d'un système d'intervention guidé par IRM et comprenant un cadre fixé au crâne d'un patient, la canule du cadre étant destinée à guider et à placer un dispositif d'intervention.

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