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Abstract #1014

Motion Correction for Interleaved EPI Diffusion Imaging using a Markerless Optical Tracking System

Yi Xiao1, Chunyao Wang1, Sisi Li1, Huijun Chen1, and Hua Guo1
1Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University, Beijing, China

Synopsis

Keywords: Motion Correction, Diffusion Tensor ImagingMulti-shot interleaved EPI can achieve high-resolution diffusion imaging and effectively reduce geometric distortions. However, multi-shot acquisitions are susceptible to bulk motion which causes artifacts. Optical tracking-based motion correction is an effective method to reduce motion artifacts in DWI. Based on a self-developed Structured Light Optical MOtion tracking (SLOMO) system, a retrospective motion correction method was developed for multi-shot interleaved EPI DWI. The performance was evaluated by in-vivo experiments and compared with software-based correction.

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