The Complex Structure of the Anterior White Commissure of the Human Brain: Fiber Dissection and Tractography Study

Commissural fibers are necessary for bilateral integration, body coordination, and complex cognitive information flow between the hemispheres. The anterior commissure (AC) has a architecture interconnecting areas of frontal, temporal occipital lobes. present study aims to demonstrate connections course (ACa) posterior (ACp) limb AC using fiber dissection diffusion tensor imaging (DTI) human brain. Fiber was performed in stepwise manner from lateral medial on 6 left gray matter decorticated ACa–ACp exposed. ACa ACp tracts were demonstrated high-spatial-resolution DTI with 3T magnetic resonance unit 13 cases. Using both techniques showed that interconnections large frontal (olfactory tubercles, olfactory nucleus, bulb, orbital gyri), (amygdaloidal nuclei, perirhinal cortex), (visual cortex) makes up major component is composed fibers. We observed these do not make distinct bundle; joined uncinate fasciculus sagittal striatum reach their targets. Being aware important during transcallosal interforniceal approaches third ventricle tumors lobe epilepsy surgery. intermingling can provide better understanding unexplained deficit may occur regional