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Head motion compensation for arterial spin labeling using optical motion tracking

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


Drechsler, Klaus (Ed.); Erdt, Marius (Ed.); Linguraru, Marius George (Ed.); Oyarzun Laura, Cristina (Ed.); Sharma, Karun (Ed.); Shekhar, Raj (Ed.); Wesarg, Stefan (Ed.):
Clinical image-based procedures. From planning to intervention : International Workshop, CLIP 2012, held in conjunction with MICCAI 2012, Nice, France, October 5, 2012, Revised Selected Papers
Berlin: Springer, 2013 (Lecture Notes in Computer Science 7761)
DOI: 10.1007/978-3-642-38079-2
ISBN: 978-3-642-38078-5 (Print)
ISBN: 978-3-642-38079-2 (Online)
ISSN: 0302-9743
International Workshop on Clinical Image-Based Procedures (CLIP) <1, 2012, Nice>
International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI) <15, 2012, Nice>
Conference Paper
Fraunhofer IGD ()
Fraunhofer MEVIS ()
magnetic resonance imaging (MRI); motion tracking; Workflow; monitoring

Monitoring of Brain perfusion using Arterial Spin Labeling (ASL) during thrombolysis is an example of an MR procedure that will take over one hour. During this time, patient head motion is inevitable. Among the solutions to this problem is motion tracking, which is used to provide the patient's head motion to the MRI scanner to compensate for this motion. We present an approach for head motion tracking which is designed to fit into clinical workflow: Blue paper dots are attached to the patient's forehead and tracked using a stereo camera setup which is mounted to the MRI head coil and easily removed and replaced. The core algorithms are explained and evaluated. Results from clinical experiments conclude the evaluation.