Clinic Application Value of MR Trigeminal Nerve Imaging in the Diagnosis of Trigeminal Neuralgia

Objective To explore the value of 3.0T MR trigeminal nerve imaging in showing vascular conflicts of trigeminal nerve and evaluate it's clinical significance of etiological diagnosis of trigeminal neuralgia. Materials and Methods Collect data of 35 patients who were diagnosed as trigeminal neuralgia in our hospital from 2011.10 to 2012.10, all of them had MRI trigeminal nerve imaging examination(including T2-SPC sequence and T1-VIBE sequence). Two experts in nervous system imaging analyzed the relationship between trigeminal nerve and adjacent vessels in MRI trigeminal nerve imaging,and evaluated the relationship between vascular conflicts of trigeminal nerve and clinical symptoms. Using the SPSS 16.0 package for c2 test,P 0.05 is considered statistically significant difference. Results In the trigeminal nerve imaging,considering the 35 cases of patients with trigeminal neuralgia(unilateral pain),there were 31 cases with vascular conflicts or adjacent to trigeminal nerve in symptoms side,and 4 cases with no relationship with the blood vessels beside trigeminal nerve;there were 6 cases with vascular adjacent to trigeminal nerve in Symptomless side,and 29 cases with no relationship with the blood vessels beside. After Statistical analysis, vascular conflicts or adjacent to trigeminal nerve displayed by trigeminal nerve imaging had close relationship with trigeminal neuralgia symptoms,and there was significant statistics difference. Conclusion 3.0T MR trigeminal nerve imaging can clearly show vascular conflicts of the trigeminal nerve,with high positive rate,and it has a good correlation with the clinical symptoms. So it has played an important role in etiological diagnosis of trigeminal neuralgia.