应用咽鼓管功能声测法和阶跃式纯音线谱信号对健康成人咽鼓管开放功能的研究  

Study on the opening function of eustachian tube in healthy adults by means of sonotubometry and step pure tone line spectrum signal

作　　者：金蕾[1] 郑阳阳 倪坤[1] 李晓艳[1] JIN Lei;ZHENG Yangyang;NI Kun;LI Xiaoyan(Department of Otolaryngology,Head and Neck Surgery,School of Medicine,Shanghai Children's Hospital,Shanghai Jiaotong University,Shanghai 200062,China)

机构地区：[1]上海交通大学医学院附属儿童医院耳鼻咽喉头颈外科,上海200062

出　　处：《听力学及言语疾病杂志》2025年第2期145-149,共5页Journal of Audiology and Speech Pathology

摘　　要：目的探究咽鼓管功能声测法合理的纯音声源信号频率区间,并初步建立正常值范围。方法选取31例健康成人受试者,分段采用3~6 kHz频带上间隔100 Hz的阶跃式纯音线谱信号作为声源进行咽鼓管功能声测法测试,分析结果。结果本研究发现3.5、4.3、4.35、4.5、4.65、4.8、5.0、5.15 kHz 8个频点通过率均较高,是较为合适的纯音信号频点;将这8个频率点上的线谱数据汇总后统计分析,计算出LVc值的95%可信区间,即95%的LVc值>5.5 dB,取整数后将6 dB设为LVc门限阈值。结论本研究发现咽鼓管功能声测法较合适的纯音线谱声源频率为3.5、4.3、4.35、4.5、4.65、4.8、5.0、5.15 kHz 8个频点,声源信号在吞咽动作发生前后约0.5~1秒范围内相对声压级超过6 dB幅值变化可作为咽鼓管有效开放指标。Objective To find a reasonable frequency range of pure tone source signal and to propose a preliminary normal value determination range for sonotubometry for eustachian tube function assessment.Methods A total of 31 healthy adults were enrolled in this study.Step pure tone line spectrum signals with an interval of 100 Hz on the frequency band of 3-6 kHz were used as sound sources for sonotubometry.Results The results showed that 8 frequency points of 3.5 kHz,4.3 kHz,4.35 kHz,4.5 kHz,4.65 kHz,4.8 kHz,5.0 kHz and 5.15 kHz were suitable frequency points for pure tone signal.The line spectrum data at these 8 frequency points were summarized and statistically analyzed,and 95%confidence interval of LVc value was calculated,that was,95%LVc value was greater than 5.5 dB,and 6 dB was set as the LVc threshold after integer.Conclusion In this study,a pure tone line spectrum sound source frequency suitable for sonotubometry was found,and the amplitude change of sound pressure level over 6 dB within about 0.5-1 second before and after swallowing action of the sound source signal can be used as an effective indicator of eustachian tube opening.

关 键 词：咽鼓管功能 纯音信号 声测法 

分 类 号：R764[医药卫生—耳鼻咽喉科]