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DEVICES AND METHODS FOR TRACKABLE HEARING PROTECTION IN MAGNETIC RESONANCE IMAGING
DEVICES AND METHODS FOR TRACKABLE HEARING PROTECTION IN MAGNETIC RESONANCE IMAGING
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机译:磁共振成像中可追踪听力保护的装置和方法
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摘要
Hearing protection combined with head motion tracking for magnetic resonance (MR) procedures is provided. Trackable earplugs include an MR-visible sample combined with a passive resonant circuit. The trackable earplugs act as wireless markers for the MR system. A third wireless MR marker can be disposed on the forehead of the subject to facilitate motion tracking in six degrees of freedom (i.e., 3 rotations, 3 translations). Preferably, the coordinate system for motion tracking is rotated relative to standard MR coordinates to ensure distinct tracking peaks from the two trackable earplugs.
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