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Clinical workflow optimized calibration-method for stereo-optical tracking in MRI

: Hoßbach, Martin; Gregori, Johannes; Wesarg, Stefan; Günther, Matthias


Magnetic resonance materials in physics, biology and medicine : MAGMA 25 (2012), No.1, Supplement, pp.580
ISSN: 0968-5243
ISSN: 1352-8661
European Society for Magnetic Resonance in Medicine and Biology (ESMRMB Annual Scientific Meeting) <29, 2012, Lisbon>
Fraunhofer IGD ()
motion tracking; magnetic resonance imaging (MRI); calibration; Business Field: Digital society; Research Area: Generalized digital documents

Though motion tracking for head motion compensation in MRI has been a research topic for some time [1-4], literature is not giving much attention to the calibration of such systems. We present a method to calibrate the coordinate systems of a stereo-optical camera setup mounted to the MRI head coil and show that, though using a simple setup and visible light [1], it is possible to achieve a sub-millimeter tracking precision.