Pre-operative reconstruction of the Meyer’s loop (ML) using diffusion MRI has a clinical utility when planning temporal lobe resection in order to avoid post-operative visual field deficit. Due to its complex anatomy, precise reconstruction of the ML is challenging. Previous literature has suggested that state-of-the-art hardware and tractography using oriented priors better approximates reconstruction to the reported histological prosections. This pilot work evaluates the ability of these improvements to predict visual field deficit in surgical patients. We report a good association in three out of four cases and suggest that simplistic metrics may not necessarily correlate with function.
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