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Abstract #0831

1.5T Versus 3.0T MRI Texture Analysis in the Normal Appearing White Matter of Multiple Sclerosis Patients

Yunyan Zhang1, Luanne M. Metz2

1Depts of Radiology and Clinical Neurosciences, University of Calgary, Calgary, AB, Canada; 2Dept of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada

Ten MS patients were imaged at both 1.5T and 3.0T within 48 hours using identical MRI protocols. T2-weighted MRI were corrected for non-uniformity and then were co-registered between scanners. Pixel-wise MRI texture was computed using polar Stockwell transform, from which the texture of normal appearing white matter (NAWM) regions were extracted. There was a similar pattern of regional variability in NAWM structures between field strength while texture heterogeneity was generally greater at 3.0T. No texture laterality was seen between bi-hemispheric NAWM. Texture analysis may be feasible at different scanners with different field strength by controlling for contralateral NAWM.