Title | A statistical framework to characterise microstructure in high angular resolution diffusion imaging |
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Authors | Olhede, S. and Whitcher, B. |
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Type | Conference paper |
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Abstract | High angular resolution diffusion imaging (HARDI) is an MR acquisition technique that has been used to identify and estimate multi-modal structure in white matter. We introduce a multiresolution estimator of the diffusion density in g-space based on a wavelet lifting scheme for HARDI data. The proposed technique avoids imposing isotropic smoothing with a fixed bandwidth that is a common feature in other higher-order methods. Summary statistics for the properties of the diffusion density are derived entirely in q-space, based on great circle and perpendicular great circle statistics. A framework is developed to characterise structural features of the diffusion using these statistics. |
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Year | 2008 |
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Conference | 2008 5th IEEE international symposium on biomedical imaging: From nano to macro |
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Publisher | IEEE |
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Publication dates |
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Published | 2008 |
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Book title | 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro |
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ISBN | 9781424420032 |
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Digital Object Identifier (DOI) | https://doi.org/10.1109/isbi.2008.4541142 |
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