RESUMEN
Objective:To investigate the clinical value of 3D-FLAIR MRI in the diagnosis of paroxysmal vestibular syndrome.Methods:The clinical data of 72 patients with suspected disease of paroxysmal vestibular syndrome diagnosed and treated in vertigo clinic of our hospital from July 2018 to December 2019 were analyzed retrospectively.All patients had a history of hearing loss, tinnitus and recurrent vertigo.They were divided into two groups: 37 patients suspected of Meniere and 35 patients suspected of vestibular migraine.3D-FLAIR MRI of inner ear was performed after 4 hours of intravenous injection of GD DTPA diluent.The results of diagnosis were compared with those of gadolinium radiography.The data were analyzed by SPSS 19.0.Results:Twenty-one patients with suspected Meniere's disease showed signs of water accumulation in the membranous labyrinth, 4 patients with suspected vestibular migraine showed signs of water accumulation in the membranous labyrinth ( P<0.01). Twenty-three patients with positive signs of water accumulation in the membranous labyrinth were finally diagnosed as Meniere's disease, while Meniere's disease was found in 2 cases of 47 patients with negative signs of membranous labyrinthine hydrops(the sensitivity, specificity and accuracy of the diagnosis of Meniere's disease were 92.0%, 95.9% and 94.6%, respectively). Three cases were complicated with vestibular migraine in the 25 cases with positive signs of membranous labyrinthine hydrops, and 29 cases were finally diagnosed as vestibular migraine in 47 cases with negative signs of membranous labyrinthine hydrocephalus (the sensitivity, specificity and accuracy of diagnosing vestibular migraine with signs of membranous labyrinthine hydrops were 90.6%, 52.4% and 68.9%, respectively). Conclusion:The 3D-FLAIR MRI technique of inner ear after gadolinium radiography has an important role in distinguishing the suspected diseases of paroxysmal vestibular syndrome, and is helpful to improve the diagnosis level of vestibular diseases.