Imaging cochlear soft tissue displacement with coherent x-rays

Christoph Rau, Claus Peter Richter

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations

Abstract

At present, imaging of cochlear mechanics at mid-cochlear turns has not been accomplished. Although challenging, this appears possible with partially coherent hard x-rays. The present study shows results from stroboscopic x-ray imaging of a test object at audio frequencies. The vibration amplitudes were quantified. In a different set of experiments, an intact and calcified gerbil temporal bone was used to determine displacements of the reticular lamina, tectorial membrane, and Reissner's membrane with the Lucas and Kanade video flow algorithm. The experiments validated high frequency x-ray imaging and imaging in a calcified cochlea. The present work is key for future imaging of cochlear micromechanics at a high spatial resolution.

Original languageEnglish (US)
Article number108006
JournalPhysica Scripta
Volume90
Issue number10
DOIs
StatePublished - Sep 18 2015

Keywords

  • cochlear dynamics
  • coherence
  • imaging
  • micromechanics
  • phase-contrast
  • synchrotron
  • x-rays

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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