Sequential motion of the ossicular chain measured by laser Doppler vibrometry
Sequential motion of the ossicular chain measured by laser Doppler vibrometry
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激光多普勒测振法测量听骨链的顺序运动
DOI：
10.1080/00016489.2017.1357833
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发表时间：
2017
影响因子：
1.4
通讯作者：
Takeuchi Hiromi
中科院分区：
文献类型：
--
作者：
Kunimoto Yasuomi;Hasegawa Kensaku;Arii Shiro;Kataoka Hideyuki;Yazama Hiroaki;Kuya Junko;Fujiwara Kazunori;Takeuchi Hiromi
目的：为了帮助外科医生做出最佳决策，需要一种更客观的方法来测量听骨运动。为了测量听骨链振动，对8例人工耳蜗植入患者进行了研究。为了评估听骨链的运动，在5个点的速度进行了测量，音调刺激的1和3 kHz，这产生了可重复的结果。在每个点的顺序幅度变化计算从音调刺激相移。从平均结果使用图形application.Results的听骨链的运动可视化：锤骨的头部和身体的砧骨显示同步运动作为一个单元。而镫骨（砧镫关节和后镫骨）的运动与锤骨和砧骨的运动同步。结论：我们的研究结果表明，锤骨和砧骨单位和镫骨运动的相位差。
Objective:In order to help a surgeon make the best decision, a more objective method of measuring ossicular motion is required.Methods:A laser Doppler vibrometer was mounted on a surgical microscope. To measure ossicular chain vibrations, eight patients with cochlear implants were investigated. To assess the motions of the ossicular chain, velocities at five points were measured with tonal stimuli of 1 and 3 kHz, which yielded reproducible results. The sequential amplitude change at each point was calculated with phase shifting from the tonal stimulus. Motion of the ossicular chain was visualized from the averaged results using the graphics application.Results:The head of the malleus and the body of the incus showed synchronized movement as one unit. In contrast, the stapes (incudostapedial joint and posterior crus) moved synchronously in opposite phase to the malleus and incus. The amplitudes at 1 kHz were almost twice those at 3 kHz.Conclusions:Our results show that the malleus and incus unit and the stapes move with a phase difference.