激光多普勒振动计测量在正常和病理状态下活人耳中的临床应用。
Clinical utility of laser-Doppler vibrometer measurements in live normal and pathologic human ears.
作者信息
Rosowski John J, Nakajima Hideko H, Merchant Saumil N
机构信息
Eaton-Peabody Lab, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts 02114, USA.
出版信息
Ear Hear. 2008 Jan;29(1):3-19. doi: 10.1097/AUD.0b013e31815d63a5.
Abstract
The laser-Doppler vibrometer (LDV) is a research tool that can be used to quickly measure the sound-induced velocity of the tympanic membrane near the umbo (the inferior tip of the malleus) in live human subjects and patients. In this manuscript we demonstrate the LDV to be a sensitive and selective tool for the diagnosis and differentiation of various ossicular disorders in patients with intact tympanic membranes and aerated middle ears. Patients with partial or total ossicular interruption or malleus fixation are readily separated from normal-hearing subjects with the LDV. The combination of LDV measurements and air-bone gap can distinguish patients with fixed stapes from those with normal ears. LDV measurements can also help differentiate air-bone gaps produced by ossicular pathologies from those associated with pathologies of inner-ear sound conduction such as a superior semicircular canal dehiscence.
摘要
激光多普勒振动计（LDV）是一种研究工具，可用于快速测量活体人类受试者和患者鼓膜脐部（锤骨下端）附近由声音引起的鼓膜速度。在本手稿中，我们证明了LDV是诊断和区分鼓膜完整且中耳通气的患者各种听骨疾病的灵敏且有选择性的工具。使用LDV可以轻松地将部分或完全听骨中断或锤骨固定的患者与听力正常的受试者区分开来。LDV测量结果与气骨导差相结合，可以区分镫骨固定的患者与正常耳朵的患者。LDV测量还可以帮助区分由听骨病变产生的气骨导差与内耳声音传导病变（如半规管上裂）相关的气骨导差。
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