Analysis of Application Value of Three-dimensional Fluid-attenuated Inversion Recovery Sequence(3D-FLAIR)in the Clinical Diagnosis of Sudden Deafness
Objective To analyze the application value of three-dimensional fluid-attenuated inversion recovery sequence(3D-FLAIR)in the clinical diagnosis of sudden deafness(SD).Methods 84 patients with SD admitted to our hospital from May 2022 to May 2023 were selected as the study subjects,and underwent 3D-FLAIR examination and routine laboratory examinations[pure tone threshold test,electrocochleogram,vestibular evoked myogenic potential(VEMP)].The patients were divided into normal inner ear group and abnormal inner ear group according to 3D-FLAIR results.The abnormal inner ear group included abnormal inner ear group A(exudation of blood labyrinth barrier)and abnormal inner ear group B(destruction of blood labyrinth barrier).The application value of 3D-FLAIR in the clinical diagnosis of SD was explored,and the hearing loss,vestibular function impairment and efficacy distribution of SD patients with different 3D-FLAIR examination results were analyzed.Results There was a significant difference in the positive rate of abnormal inner ear in SD patients among electrocochleogram,VEMP and 3D-FLAIR(P＜0.05),and the positive rate of 3D-FLAIR was significantly higher than that of electrocochleogram and VEMP(P＜0.05).Among the 84 SD patients,the degree of hearing loss was mainly severe hearing loss(44 cases,52.38％),and the type of hearing curve was mainly total hearing loss(43 cases,51.19％).There were 78 cases with abnormalities in 3D-FLAIR,including 12 cases in group A(abnormal inner ear group A)and 66 cases in group B(abnormal inner ear group B).There was no statistically significant difference in hearing loss degree distribution among the three groups(P＞0.05),but there was a statistical difference in hearing curve type distribution among the three groups(P＜0.05).Among the 84 SD patients,62 abnormal cases(73.81％)were shown by VEMP,29 abnormal cases(34.52％)by HIT,60 abnormal cases(71.43％)by VAT,and 54 cases abnormal(64.29％)by caloric test.There was a statistical significance in abnormal distribution of VEMP,VAT and caloric test among the three groups(P＜0.05).Among the 84 SD patients,there were 12 cured cases(14.29％),19 markedly effective cases(22.62％),20 effective cases(23.81％)and 33 ineffective cases(39.28％).The distribution of efficacy revealed a statistical significance among the three groups(P＜0.05).Conclusion 3D-FLAIR is helpful to understand the pathological status of inner ear in SD patients,and has a high detection rate of inner ear abnormality,and it can be used in the auxiliary diagnosis of SD to improve the effectiveness of treatment regimen.
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