CLINICAL APPLICATIONS OF MEYER’S LOOP TRACTOGRAPHY
Abstract:
Visual field defects (VFD) due to Meyer’s loop injury may occur after temporal lobe resection
surgery. Diffusion tensor tractography (DTT) of the Meyer’s loop may reduce the risk of postoperative
VFD. Currently, there is no standardized method to perform tractography for this structure. We
performed DTT of the Meyer’s loop in 10 healthy subjects and demonstrated the complex arrangement
of the various projection fibers that compose the Meyer’s loop and the complex relations with the
neighbouring fiber systems. Evaluation of the Meyer’s loop through the use of tractography may be a
useful method to predict VFD after temporal resection surgery and this anatomical knowledge may be
used to build surgical strategies and tactics to avoid the risk of intraoperative damage to this structure.
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