MRI coil assembly with a radio frequency shield switchable between a blocking state and a transparent state
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Oct 3, 2012
filing date -
Oct 18, 2011
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Abstract
A magnetic resonance imaging system (300, 400) acquires magnetic resonance data (342). The magnetic resonance imaging system includes a coil assembly (319) configured for radiating and/or receiving radio frequency energy from an imaging zone. The coil assembly has a first surface (315) configured for being directed towards the imaging zone and includes at least one coil element (317). The coil assembly further comprises a radio frequency shield (319) switchable between an RF blocking state (804) and an RF transparent state (802). The at least one coil element is between the first surface and the radio frequency shield. The switchable radio frequency shield includes at least two conductive elements (322). The radio frequency shield includes at least one radio frequency switch (324) configured for electrically connecting the at least two conductive elements in the blocking state and disconnecting the at least two conductive elements in the transparent state.
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