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British Journal of Radiology 74 (2001),642-647 © 2001 The British Institute of Radiology

Short communication

MR diffusion tensor imaging of white matter tract disruption in stroke at 3 T

J H Gillard, BSc, MD, FRCR1,, N G Papadakis, PhD2,5, K Martin5, C J S Price, BSc, MRCP3, E A Warburton, MA, DM, MRCP3, N M Antoun, FRCP, FRCR1, C L-H Huang, PhD2, T A Carpenter, PhD5 and J D Pickard, MA, MChir, FRCS4,5

Departments of 1Radiology, 2Physiology, 3Neurology and 4Neurosurgery and 5The Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 2QQ, UK

Recent advances in MR diffusion weighted imaging (DWI) enable the identification of anisotropic white matter tracts with diffusion tensor imaging (DTI). We aimed to use a novel DTI technique to safely study patients with recent stroke in a high field (3 T) MR machine with its intrinsically higher spatial resolution and signal-to-noise ratio. Of ten patients studied, six had disruption of white matter tracts as determined by DTI. A further patient had distortion of white matter tracts around an infarct rather than actual disruption of the tracts themselves. The lack of tract destruction may imply a beneficial prognosis, information that is not available with conventional DWI.




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