Scan And Enhanced3D-TOF-MRA Of Vascular Compression To Assess The Diagnostic Value Of Trigeminal Neuralgia And Facial Spasm

Objective:Study of MRI sequence3D-TOF-MRA scan and enhancement scan+3D-TOF-MRA two methods in vascular compression of trigeminal neuralgia and the diagnostic value of facial spasms and M VD preoperative instruction significance.Methods:First, Retrospective analysis110cases of patients with unilateral classical trigeminal neuralgia footage, all patients undergoing routine SET1W1and TSET2WI screening the surrounding area of trigeminal nerve vascular compression of the trigeminal nerve pathological changes after on the scan3D-TOF-MRA sequence (including97patients line scan3D-TOF-MRA,13cases with line scan+enhanced3D-TOF-MRA), determine the trigeminal contorts the presence of vascular compression or contact area and the root, symptoms compared to side with the symptoms of side vascular compression signs, symptoms analysis side responsibility the source of the blood vessels. Compared with35cases of patients with primary trigeminal neuralgia in MVD can see with3D-TOF-MRA can see nerve blood vessels.Second, Retrospective analysis of50cases of patients with unilateral primary facial spasms image information, all patients undergoing routine SET1WI and FSET2WI screening after the facial nerve in the surrounding area of vascular compression lesions in facial nerve are sequences of3D-TOF-MRA scan (43patients line scan3D-TOF-MRA examination;7patients line scan+enhanced3D-TOF-MRA-sequence checks), determine facial nerve contorts the presence of vascular compression or contact area and the root, symptoms compared to side with the symptoms of side vascular compression signs, symptoms analysis side responsibility the source of the blood vessels. Contrast seen in13patients with facial spasm in MVD with3D-TOF-MRA can see nerve blood vessels.Three, Comparative scan3D-TOF-MRA and scan+enhanced3D-TOF-MRA in primary trigeminal neuralgia of the two methods and the positive detection rate of primary facial spasm.Result:First,110patients with unilateral classical trigeminal neuralgia.110routine scan3D-TOF-MRA symptoms checked out side responsible blood vessels in85patients, positive detection rate of87.5%.12cases symptoms side responsibility are not found in blood vessels, the symptoms of side found that is close to the nerve blood vessels with18cases;13routine scan+enhanced3D-TOF-MRA-CTN of patients, symptoms of13cases all checked out responsible blood vessels (including12cases were detected for arterial blood vessels.1case of vein) positive detection rate was100%, the symptom side found that three closely related to nerve blood vessels.110cases of liability for superior cerebellar artery vascular source distribution45cases, anterior artery34cases, after cerebellar artery6cases, vertebral artery(3cases), basilar artery in4cases, vertebral artery and basilar arten in2cases, basal+superior cerebellar artery in2cases, vertebral artery-cerebellar artery in1case,1case of varicose veins.Second.110cases of patients,35underwent microvascular decompression:32cases of symptom side3D-TOF-MRA showed neurovascular compression or contact, operation confirmed all vascular contact or oppression;3cases symptoms side3D-TOF-MRA showed no nerve vascular compression, contacts, operation confirmed that vascular contact or oppression. This group of data in3D-TOF-MRA diagnosis sensitivity CTN patients was-91.43%. the missed diagnosis rate was8.57%.Three,50in patients with unilateral primary facial spasms,43cases of scan3D-TOF-MRA symptoms checked out side responsible blood vessels in41cases, positive detection rate was95.3%.2cases of symptom side responsibility are not found in blood vessels, the symptoms of side found that three that is close to the nerve blood vessels;7routine scan+enhanced3D-TOF-MRA HFS patients, symptoms side responsibility all7cases detected blood vessels, positive detection rate was100%, the symptom side found in1case is close to the nerve blood vessels.50cases responsible blood vessels under the source distribution for anterior artery26cases.10cases of superior cerebellar artery, after cerebellar artery in2cases, vertebral artery in5cases, basal artery in3cases, vertebral artery and basilar artery in1case, vertebral artery and anterior artery in1case.Four.In50patients with HFS.13underwent microvascular decompression:12cases of side3D-TOF-MRA showed symptoms of neurovascular compression, contact, operation confirmed all vascular contact or oppression;1case symptom side3D-TOF-MRA showed no nerve vascular compression, contacts, operation confirmed that vascular contact or oppression. This group of data in3D-TOF-MRA diagnosis in patients with HFS sensitivity was92.3%, the missed diagnosis rate was7.69%.Conclusion:Frist, Magnetic resonance imaging (mri) scan3D-TOF-MRA can be used in the classical trigeminal neuralgia and idiopathic facial spasm in patients with early clinical screening tests.Second, Enhanced3D-TOF-MRA sequence detection classical trigeminal neuralgia and the positive rate of primary facial spasms of responsible blood vessels, are100%, can be used as a clinical diagnosis of trigeminal neuralgia and classic idiopathic facial spasms of one of the standard.Three, Enhanced3D-TOF-MRA sequence can be used as scan3D-TOF-MRA supplement, in order to increase credibility.