CE-Chirp刺激声诱发的听性稳态反应阈与行为测听阈值的相关性

目的:比较CE-Chirp刺激声诱发的听性稳态反应(ASSR)阈与行为测听阈的差值,探讨不同性质和不同程度听力损失患者的CE-Chirp ASSR反应阈与行为听阈之间的相关性.方法:根据电测听结果分为听力正常组(15例,30耳)和听力异常组(99例,144耳).听力异常组根据不同性质听力损失分为传导性(25耳)、混合性(42耳)和感音神经性聋(77耳),根据不同程度听力损失分为轻度(53耳)、中度(45耳)、重度(21耳)及极重度(25耳).分别测试正常和异常听力者CE-Chirp ASSR的反应阈,与在频率0.5、1、2和4kHz的行为听阈进行相关性分析;两阈值差分别在同一频率不同听力组间、同一听力组内不同频率间进行比较.结果:听力正常和异常组的CE-Chirp ASSR反应阈与行为听阈之间关系密切(P＜ 0.01);CE-Chirp ASSR反应阈与行为听阈差值在同一频率各听力异常组间及4个不同频率同一听力异常组内差异均无统计学意义(P＞0.05).结论:CE-Chirp ASSR反应阈与行为测听阈有显著相关性；CE-Chirp ASSR是一种快速、具有频率特异性的新型听力检测方法,可对不同性质、不同程度听力损失患者进行客观听力评估.

Analysis of the correlation between CE-Chirp ASSR and the behavioral hearing thresholds

Objective To compare the difference of threshold estimation by CE-Chirp auditory steady state evoked response (ASSR) and behavioral audiometry in normal ears and ears with different characteristic and different degree hearing loss, and to investigate the correlation and differences between thresholds of CE-Chirp ASSR and behavioral auditory. Methods Thirty normal ears (15 people) and 144 abnormal ears (99 people) were enrolled and separately tested by CE-Chirp ASSR and behavioral audiometry. The correlation and differences between thresholds of CE-Chirp ASSR and the behavior audiometry at 0.5, 1, 2 and 4 kHz were analyzed respectively. Results The correlation coefficients of the thresholds of CE-Chirp ASSR were positively correlated with the thresholds of behavioral auditory in normal and abnormal ears group (P < 0.01). The differences of thresholds between CE-Chirp ASSR and the behavior audiometry at 0.5, 1, 2 and 4 kHz in hearing loss groups were not statistically significant (P > 0.05, respectively). Conclusions Thresholds of CE-Chirp ASSR positively correlates with that of behavioral auditory. CE-Chirp ASSR provides a new method for impersonal hearing evaluation with shorter time and better frequency specificity.