Diffusion Tensor MR Imaging of High-Grade Cerebral Gliomas
Saurabh Sinhaa,
Mark E. Bastinb,
Ian R. Whittlea and
Joanna M. Wardlawa
a Department of Clinical Neurosciences, University of Edinburgh, Western General Hospital, Crewe Road, Scotland
b Department of Medical and Radiological Sciences (Medical Physics), University of Edinburgh, Western General Hospital, Crewe Road, Scotland
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FIG 1. Images in patient 4.
A and B, Contrast-enhanced T1-weighted volume images. In B, the solid arrow indicates a region of an enhancing tumor margin; dashed arrow, enhancing tumor core; dotted arrow, nonenhancing tumor core.
C and D, T2-weighted EP images. Arrow in D indicates a region of edematous brain.
E,  D parametric map.
F, FA parametric map.
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FIG 2. Images in patient 5.
A, Contrast-enhanced T1-weighted volume image. The solid arrow indicates a region of enhancing tumor margin; dashed arrow, enhancing tumor core; dotted arrow, nonenhancing tumor core.
B, T2-weighted EP images. Arrow indicates a region of edematous brain.
C and D, Note the high D and low FA values in the nonenhancing tumor core and edematous brain on the D parametric map (C) and FA parametric map (D).
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FIG 3. Images in patient 3. The thick arrow indicates a region of enhancing tumor margin; the thin arrow in B indicates edematous brain.
A, Contrast-enhanced T1-weighted volume image.
B, T2-weighted EP images.
C, D parametric map. Note the diffuse nature of the edema.
D, FA parametric map.
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