Journal
2019 IEEE 16TH INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING (ISBI 2019)
Volume -, Issue -, Pages 1696-1699Publisher
IEEE
DOI: 10.1109/isbi.2019.8759196
Keywords
Diffusion MRI; Spinal Cord; Distortion correction
Funding
- EMISEP PHRC
- Britanny region
- MITACS-Inria Cilobalink travel grant
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Acquiring and processing Diffusion MRI in spinal cord present inherent challenges. Differences in magnetic susceptibility between soft tissues, air and bone make the magnetic field of spinal cord non-uniform and inhomogeneous. In this context various procedures were proposed for correcting this distortion. In this work, we propose novel geometric statistics to measure the alignment of the reconstructed diffusion model with the apparent centerline of the spine. In parallel of the correlation with an anatomical T2-weighted image, we show the utility of these statistics to study and evaluate the impact of distortion correction by comparing 3 distortion correction methods from reversed gradient polarity strategy.
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