摘要
目的 :测定正常青年人多频稳态听觉诱发反应 (ASSR)阈值 ,为临床诊断提供客观依据。方法 :选正常青年人 2 2例 (4 4耳 ) ,行ASSR阈值测试。结果 :在 0 .2 5～ 8.0kHz频区间 ,ASSR平均阈值约在 4 0～ 6 0dBHL之间 ,从低频到高频其阈值越来越高 ,0 .2 5kHz、0 .5kHz、1.0kHz处的ASSR平均阈值约为 4 0dBHL ,2 .0kHz处约为 4 5dBHL ,4 .0kHz处约为 5 0dBHL ,8.0kHz处约为 6 0dBHL。ASSR阈值与纯音听阈间差值多在2 5～ 5 5dBHL之间 ,从低频到高频其阈差值越来越高 ,0 .2 5kHz处的差值约为 2 5dBHL ,0 .5kHz处约30dBHL ,1.0kHz处约 35dBHL ,2 .0kHz处约 4 0dBHL ,4 .0kHz处约 5 0dBHL ,8.0kHz处约 5 5dBHL。结论 :正常青年人ASSR阈值与纯音听阈间有一定差值。利用这一差值 。
Objective: To determine the threshold of multiple auditory steady-state evoked responses(ASSR) of young adults with normal hearing,and to offer essential diagnosticate datas.Method:ASSR were examined in 22(44 ears) young adults with normal hearing.There were 11 men and 11 women in 22 young adults.Result:Average threshold of ASSR were about 40 to 60 dBHL between 0.25～ 8.0 kHz,and they became higher from low frequency to high frequency. Average threshold of MFSSR were 40 dBHL at 0.25 ～ 0.5, 1 kHz,and about 45 dB HL at 2 kHz, and about 50 dB HL at 4 kHz, and about 60 dB HL at 8 kHz. Difference values were about 25 to 55 dB HL between average threshold values of ASSR and hearing, and they became higher from low frequency to high frequency, those were about 25 dBHL at 0.25kHz, about 30 dBHL at 0.5 kHz, about 35 dBHL at 1 kHz, about 40 dB HL at 2 kHz, about 50 dB HL at 4 kHz, about 55 dBHL at 8 kHz.Conclusion: There is a definite numeral value between threshold of ASSR and hearing in young adults with normal hearing.Pure tone hearing threshold can be conferred by examining the threshold of ASSR and by using the definite numeral values.
出处
《临床耳鼻咽喉科杂志》
CSCD
北大核心
2004年第1期30-32,共3页
Journal of Clinical Otorhinolaryngology
关键词
测听法
诱发反应
稳态听觉诱发反应
听阈
青年人
Audiometry,evoked response
Auditory steady-state evoked responses
Auditory threshold
Young adults
