Type:
Educational Exhibit
Keywords:
Neuroradiology brain, MR-Diffusion/Perfusion, Diagnostic procedure, Pathology
Authors:
M. Recio1, L. C. Hernández González2, V. Martinez de Vega3, M. Jimenez De La Peña3, S. Gil Robles3, J. Carrascoso Arranz1, R. Cano Alonso3, E. Alvarez3, L. Herraiz Hidalgo1; 1Pozuelo de Alarcón, Madrid/ES, 2Oviedo/ES, 3Madrid/ES
DOI:
10.1594/ecr2011/C-0542
Learning objectives
We review the normal anatomy of the white matter (WM) tracts as they appear on directional diffusion tensor imaging (DTI) color maps and tractography.
Anatomic gross dissection photographs are correlated with tractography to review the anatomy of those tracts,
which are readily seen in most cases.
We describe the principles of diffusion contrast and anisotropy,
as well as their main clinical applications in developmental abnormalities,
demyelinating disease,
ischemic disease,
infectious diseases,
neurodegenerative disordes,
neoplasms and preoperative studies.
DTI MR images were obtained with a 3T system and b values of 0 and 1000 s/mm2 were used.
Our imaging protocol consisted of 82 diffusion encoding gradient directions when comparing with anatomic sections from cadavers and 25 diffusion encoding gradient directions when clinical applications were under evaluation.