Application Of Diffusion Tensor Imaging Tractography And Neuroelectrophysiological Monitoring In Microsurgery For Spinal Cord Tumor

Objective To evaluate the clinical value of diffusion tensor imaging tractography andneuroelectrophysiological monitoring in microsurgery for spinal cord tumors.Methods22patients were scanned by routine T1WI、T2WI、DTI sequence, and spinalcord tracts were visualized by using functool software, provide the visualized operation guide forneurosurgery. Evaluated spatial relationship between tumors and spinal cord tracts, andpredicted the extent of resection on DTT maps before surgery. Assisted with somatonsensoryevoked potential, motor evoked potential and electromyography to protect neurologicalfunction during surgery, the tumor was resected under the microscope. DTT predicted resultsand surgical findings were compared by χ2test.Results Total lesion resection was achieved in20patients, and subtotal resection in2cases.Neurological functions were improved or unchanged in21cases, worsen in1cases．The results difference between DTT predicted and surgical findings were notsignificant difference (P>0.05).Conclusions Diffusion tensor imaging (DTI) was a Non-Invasive MR imagingtechnique.DTT can clearly visualize the integrity of spinal cord tracts and can provide usefulinformation for the relationship between tumors and tracts, provide the visualized operationguide for neurosurgery, combined intraoperative neuroelectrophysiological monitoring canincrease the accuracy of resection and protect neurological function. There is important clinical value to guide microsurgery planning and effective protect spinal cord and to improvethe prognosis of patients.