Magnetically driven middle ear ossicles with laser vibrometry as a new diagnostic tool to quantify ossicular fixation
Magnetically driven middle ear ossicles with laser vibrometry as a new diagnostic tool to quantify ossicular fixation
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磁驱动中耳小骨与激光振动测量作为量化小骨固定的新诊断工具
DOI：
10.3109/00016489.2013.841990
复制
发表时间：
2014
影响因子：
1.4
通讯作者：
M. von Unge
中科院分区：
文献类型：
--
作者：
J. Peacock;J. Dirckx;M. von Unge
结论：通过测量经耳道的凹牙与脐长突速度之比，可以获得凹牙固定程度的信息。目的：探讨一种新的量化鼓膜升高耳部部分听骨固定的方法。方法：对4块新鲜冷冻的人颞骨进行测量。鼓膜抬高后，在鼓膜柄上附着一块小磁铁，用电磁激励线圈振动听骨。测量了人工固定砧板前后砧板长柄尖和砧板的振动响应。结果：部分砧板固定导致砧板和砧板速度均降低，且砧板速度降低更为严重。它们振动的减少比例是砧木固定程度的一个明确指标。
Abstract Conclusion: Information on the degree of incus fixation can be gathered by measuring the ratio of incus to umbo long process velocity through the ear canal. Objectives: To test a new method of quantifying partial ossicular fixation in an ear with an elevated tympanic membrane. Methods: Measurements were made on four fresh-frozen human temporal bones. After elevating the tympanic membrane a small magnet was attached to the manubrium and an electromagnetic excitation coil was used to vibrate the ossicles. The vibration response of the tip of the incus long process and the umbo were measured before and after artificially fixating the incus to the lateral attic wall. Results: Partial incus fixation resulted in a decrease in both the incus and umbo velocities, with the incus velocity being more severely reduced. The decreased ratio of their vibrations is a clear indicator of the degree of incus fixation.
DOI：
--
发表时间：
2006
期刊：
International Journal of Audiology Vol.45(2)
影响因子：
--
作者：
Takuji Koike;et al.
通讯作者：
et al.