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Abstract #4596

Non-Iterative Navigator-Based Approach: Advances Towards Real Time 3D Motion Correction

Junmin Liu1,2, Maria Drangova1,2

1Robarts Research Institute, the University of Western Ontario, London, Ontario, Canada; 2Schulich School of Medicine & Dentistry, the University of Western Ontario, London, Ontario, Canada

This abstract presents a non-iterative navigator-based motion correction technique applied to spherical navigator (SNAV) data acquired using multi-element RF coils. The method is based on the pre-rotated SNAV (preRot-SNAV) technique where rotation is determined by identifying the best match template from a set of pre-rotated baseline SNAVs. Three different methods for combining the raw data were evaluated. In vivo results demonstrate the feasibility and practicality of using the preRot-SNAV in conjunction with multi-element RF coil acquisition. The results confirm that the preRot-SNAV technique is a viable, accurate approach for use in real time 3D motion correction.