A, Illustration shows the anatomic relationships of several WM fiber tracts in the coronal plane. A, Illustration shows the anatomic relationships of several.

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Presentation transcript:

A, Illustration shows the anatomic relationships of several WM fiber tracts in the coronal plane. A, Illustration shows the anatomic relationships of several WM fiber tracts in the coronal plane. Circled tracts are those further illustrated in this review. The corpus callosum is “sandwiched” between the cingulum superomedially and the superior occipitofrontal fasciculus inferolaterally. The superior longitudinal fasciculus sweeps along the superior margin of the claustrum in a great arc. The inferior occipitofrontal fasciculus lies along the inferolateral edge of the claustrum. (Reproduced with permission from reference 20.)B, Directional map corresponding to A. The paired cingula are easily identified in green (yellow arrows) just cephalad to the red corpus callosum (thick white arrow). White arrowheads indicate superior occipitofrontal fasciculus; thin white arrows, inferior occipitofrontal fasciculus; yellow arrowheads, superior longitudinal fasciculus. Like the corpus callosum, the commissural fibers of the anterior commissure are left-right oriented toward the midline, resulting in the characteristic red (open arrows) on this DTI map. Further lateral, the fibers diverge and mingle with other tracts; they are no longer identifiable with DTI, but can be traced with tractography. Brian J. Jellison et al. AJNR Am J Neuroradiol 2004;25:356-369 ©2004 by American Society of Neuroradiology