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PLoS By Category | Recent PLoS Articles
Biotechnology - Otolaryngology - Physics - Physiology - Radiology and Medical Imaging

Quantitative X-ray Tomography of the Mouse Cochlea
Published: Monday, April 02, 2012
Author: Christoph Rau et al.

by Christoph Rau, Margaret Hwang, Wah-Keat Lee, Claus-Peter Richter

Imaging with hard X-rays allows visualizing cochlear structures while maintaining intrinsic qualities of the tissue, including structure and size. With coherent X-rays, soft tissues, including membranes, can be imaged as well as cells making use of the so-called in-line phase contrast. In the present experiments, partially coherent synchrotron radiation has been used for micro-tomography. Three-dimensional reconstructions of the mouse cochlea have been created using the EM3D software and the volume has been segmented in the Amira Software Suite. The structures that have been reconstructed include scala tympani, scala media, scala vestibuli, Reissner's membrane, basilar membrane, tectorial membrane, organ of Corti, spiral limbus, spiral ganglion and cochlear nerve. Cross-sectional areas of the scalae were measured. The results provide a realistic and quantitative reconstruction of the cochlea.
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