Abstract: This article discusses the predictive value of enhanced inner ear magnetic resonance 3D-FLAIR characteristics for the prognosis of sudden sensorineural hearing loss(SNHL)patients. This study took 89 single-ear SNHL patients as the research object. All patients underwent 3D-FLAIR examination and related data, and they were followed up for 6 months after a complete cycle of treatment. The results showed that of the 87 patients who completed the follow-up, 64 had a good prognosis and 23 had a poor prognosis. The average pure tone audiometry threshold (PTA) and the proportion of abnormal membrane labyrinth structure in water imaging scan of patients with good prognosis were significantly lower than those of patients with poor prognosis, and there were also significant differences in 3D-FLAIR scan results between the two groups (P<0.05). PTA and 3D-FLAIR scanning signals are independent factors affecting the prognosis of SNHL patients. PTA, 3D-FLAIR and the combination of the two have good predictive value for the prognosis of patients (P<0.05). The combined detection of AUC was significantly greater than PTA and 3D-FLAIR, and the Youden index was higher than PTA and 3D-FLAIR. It shows that 3D-FLAIR has a certain predictive power for the prognosis of SNHL patients, but it still needs to be combined with other effective detection methods to further improve the effect of judging the prognosis of SNHL patients.

Key words: 3D-FLAIR, sensorineural hearing loss, sudden, MRI