Measurement of blood flow in human tympanic membrane with spectrophotometory and laser speckle flow meter.

Yamaguchi, Mikio; Agawa, Kuniharu; Kanetake, Hiroyuki; Koike, Yasuo; Kashima, Kenzi

doi:10.3950/jibiinkoka.93.1354

Cited by 2 publications

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“…Movements of the scattering medium lead to fluctuations of the speckles and subsequent intensity variations of a detector monitoring the speckles. Temporal and spatial speckle statistics provide information on the movement of the scattering medium ( Yamaguchi et al, 1990 ; Wada et al, 2002 ).…”

Section: Appendix: Methods To Measure Middle Ear Functionmentioning

confidence: 99%

Mammalian middle ear mechanics: A review

Ugarteburu

Withnell

Cardoso

et al. 2022

Front. Bioeng. Biotechnol.

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The middle ear is part of the ear in all terrestrial vertebrates. It provides an interface between two media, air and fluid. How does it work? In mammals, the middle ear is traditionally described as increasing gain due to Helmholtz’s hydraulic analogy and the lever action of the malleus-incus complex: in effect, an impedance transformer. The conical shape of the eardrum and a frequency-dependent synovial joint function for the ossicles suggest a greater complexity of function than the traditional view. Here we review acoustico-mechanical measurements of middle ear function and the development of middle ear models based on these measurements. We observe that an impedance-matching mechanism (reducing reflection) rather than an impedance transformer (providing gain) best explains experimental findings. We conclude by considering some outstanding questions about middle ear function, recognizing that we are still learning how the middle ear works.

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Section: Appendix: Methods To Measure Middle Ear Functionmentioning

confidence: 99%

Mammalian middle ear mechanics: A review

Ugarteburu

Withnell

Cardoso

et al. 2022

Front. Bioeng. Biotechnol.

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show abstract

“…Darüber hinaus kann die Speckle-Technik auch zur Durchflussmessung verwendet werden. Beispielsweise wurde mittels Speckle-Flowmetrie am menschlichen Trommelfell die Durchblutung gemessen [33].…”

Section: Speckle-messtechnikunclassified

8 Laser in der Ohrforschung

Zahnert

2003

Laryngorhinootologie

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Measurement of blood flow in human tympanic membrane with spectrophotometory and laser speckle flow meter.

Cited by 2 publications

References 0 publications

Mammalian middle ear mechanics: A review

Mammalian middle ear mechanics: A review

8 Laser in der Ohrforschung

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