A normative study of tympanic membrane motion in humans using a laser Doppler vibrometer (LDV)
A normative study of tympanic membrane motion in humans using a laser Doppler vibrometer (LDV)
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DOI：
10.1016/s0378-5955(03)00332-0
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发表时间：
2004-01-01
期刊：
影响因子：
2.8
通讯作者：
Rosowski, JJ
中科院分区：
文献类型：
--
作者：
Whittemore, KR;Merchant, SN;Rosowski, JJ
使用激光多普勒测振法测量 56 名听力正常的受试者在 9 个声音频率下在鼓膜附近评估的声诱发鼓膜 (TM) 速度。第二组测量是对 47 名感音神经性听力损失 (SNHL) 受试者进行的。每组测量结果都与之前发布的结果具有共同特征。受试者中任何一个频率下测量的速度幅度（通过刺激声压归一化）与平均值相差 3-0.3 (+/-10 dB)，归一化速度的相位角范围从低频时平均值周围 15 度到 6 kHz 时平均值周围 +/-200 度以上。间隔几分钟到几个月后重复测量，幅度 (+/-3 dB) 误差一般在 40% 以内，相位误差在 20 度以内。变异性来源包括测量位置的微小差异对 TM 的影响以及微小的静态中耳压力。没有发现刺激水平、耳朵侧向（右耳或左耳）、性别、年龄或是否存在 SNHL 的影响。这些结果为 TM 速度与不同病因的传导性听力损失的研究提供了基线正常反应。 (C) 2003 Elsevier B.V. 保留所有权利。
Laser Doppler vibrometry was used to measure the sound-induced tympanic membrane (TM) velocity, assessed near the umbo, in 56 normal hearing human subjects at nine sound frequencies. A second series of measurements was made in 47 subjects with sensorineural hearing loss (SNHL). Each set of measurements has features in common with previously published results. The measured velocity magnitude (normalized by the stimulus sound pressure) at any one frequency ranged among subjects by factors of 3-0.3 (+/-10 dB) from the mean and the phase angle of the normalized velocity ranged from 15degrees around the mean at low frequencies to more than +/-200degrees around the mean at 6 kHz. Measurements repeated after intervals of minutes to months were generally within 40% in magnitude (+/-3 dB) and 20degrees in phase. Sources of variability included the effect of small differences in the location of the measurement on the TM and small static middle-ear pressures. No effects of stimulus level, ear sidedness (right or left), gender, age or the presence or absence of SNHL were found. These results provide a baseline normal response for studies of TM velocity with conductive hearing losses of different etiologies. (C) 2003 Elsevier B.V. All rights reserved.