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Related to motor tract: pyramidal motor system, Pyramidal Tracts
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Different studies have focused on the safety of the tractography guided surgery of tumors near the motor tract, based on lower postoperative morbidity mainly when associated with intraoperative brain stimulation [2,11,16,17,18,25].
However a moderately complicated but sensible method called triple stimulation technique (TST) showed that all the fibers of the descending motor tracts can be activated, and the amount of the lesions in the pyramidal tracts or in the most proximal segments of the peripheral nerves can be measured (9,10).
Tractography revealed that the tumor was pushing the motor tracts posteriorly.