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.