Abstract
The tracking and compensation of patient motion during a magnetic resonance imaging (MRI) acqusition is an unsolved problem. For brain MRI, a promising approach recently suggested is to track the patient using an in-bore camera and a checkerboard marker attached to the patient’s forehead. However, the possible tracking range of the head pose is limited by the locally attached marker that must be entirely visible inside the camera’s narrow field of view (FOV). To overcome this shortcoming, we developed a novel self-encoded marker where each feature on the pattern is augmented with a 2-D barcode. Hence, the marker can be tracked even if it is not completely visible in the camera image. Furthermore, it offers considerable advantages over the checkerboard marker in terms of processing speed, since it makes the correspondence search of feature points and marker-model coordinates, which are required for the pose estimation, redundant. The motion correction with the novel self-encoded marker recovered a rotation of 18° around the principal axis of the cylindrical phantom in-between two scans. After rigid registration of the resulting volumes, we measured a maximal error of 0.39 mm and 0.15° in translation and rotation, respectively. In in-vivo experiments, the motion compensated images in scans with large motion during data acquisition indicate a correlation of 0.982 compared to a corresponding motion-free reference.
This work was supported in part by the National Institutes of Health (Grant numbers: 1R01EB008706, 5R01EB002711, 1R01EB006526, 1R21EB006860, P41RR09784), Lucas Foundation, Oak Foundation, Bavarian California Technology Center, and GE Healthcare.
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References
Pipe, J.G.: Motion Correction With PROPELLER MRI: Application to Head Motion and Free-Breathing Cardiac Imaging. Magn. Reson. Med. 42(5), 963–969 (1999)
Sarty, G.E.: Single TrAjectory Radial (STAR) imaging. Magn. Reson. Med. 51(3), 445–451 (2004)
Thesen, S., Heid, O., Mueller, E., Schad, L.R.: Prospective Acquisition Correction for Head Motion With Image-Based Tracking for Real-Time fMRI. Magn. Reson. Med. 44(3), 457–465 (2000)
Aksoy, M., Liu, C., Moseley, M., Bammer, R.: A Self-navigated Spiral In & Out Pulse Sequence Design for Retrospective Motion Correction. In: Proceedings of the 14th Annual Meeting of the ISMRM, Seattle, Washington (2006)
White, N., Roddey, C., Shankaranarayanan, A., Han, E., Rettmann, D., Santos, J., Kuperman, K., Dale, A.M.: PROMO: Real-Time Prospective Motion Correction in MRI Using Image-Based Tracking. Magn. Reson. Med. 63(1), 91–105 (2010)
Ooi, M.B., Krueger, S., Thomas, W.J., Swaminathan, S.V., Brown, T.R.: Prospective real-time correction for arbitrary head motion using active markers. Magn. Reson. Med. 62(4), 943–954 (2009)
Dold, C., Zaitsev, M., Speck, O., Firle, E.A., Hennig, J., Sakas, G.: Prospective Head Motion Compensation for MRI by Updating the Gradients and Radio Frequency During Data Acquisition. In: Duncan, J.S., Gerig, G. (eds.) MICCAI 2005. LNCS, vol. 3749, pp. 482–489. Springer, Heidelberg (2005)
Aksoy, M., Newbould, R., Straka, M., Holdsworth, S., Skare, S., Santos, J., Bammer, R.: A Real Time Optical Motion Correction System Using a Single Camera and 2D Marker. In: Proceedings of the 16th Annual Meeting of the ISMRM, Toronto, Canada (2008)
Zaitsev, M., Dold, C., Sakas, G., Hennig, J., Speck, O.: Magnetic Resonance Imaging of Freely Moving Objects: Prospective Real-time Motion Correction Using an External Optical Motion Tracking System. NeuroImage 31(3), 1038–1050 (2006)
Fiala, M.: ARTag, a Fiducial Marker System Using Digital Techniques. In: Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), pp. 590–596 (2005)
Edwards, A.L.: An Introduction to Linear Regression and Correlation. W. H. Freeman and Co., San Francisco (1993)
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Forman, C., Aksoy, M., Hornegger, J., Bammer, R. (2010). Self-encoded Marker for Optical Prospective Head Motion Correction in MRI. In: Jiang, T., Navab, N., Pluim, J.P.W., Viergever, M.A. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI 2010. MICCAI 2010. Lecture Notes in Computer Science, vol 6361. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15705-9_32
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