Three-dimensional imaging of human brain tissues using absorption-contrast high-resolution X-ray tomography

Anna Khimchenko; Georg Schulz; Christos Bikis; Hans Deyhle; Natalia Chicherova; Simone E. Hieber; Gabriel Schweighauser; Jürgen Hench; Bert Müller

doi:10.1117/12.2259977

17 April 2017 Three-dimensional imaging of human brain tissues using absorption-contrast high-resolution X-ray tomography

Anna Khimchenko, Georg Schulz, Christos Bikis, Hans Deyhle, Natalia Chicherova, Simone E. Hieber, Gabriel Schweighauser, Jürgen Hench, Bert Müller

Author Affiliations +

Proceedings Volume 10162, Bioinspiration, Biomimetics, and Bioreplication 2017; 101620K (2017) https://doi.org/10.1117/12.2259977
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

Our body is hierarchically organized down to individual cells. Cutting-edge clinical imaging facilities reach a spatial resolution of a fraction of a millimeter, living cells invisible. A decade ago, post-mortem X-ray imaging by means of synchrotron radiation enabled the identification of Os-stained ganglion and unstained Purkinje cells. Very recently, even sub-cellular structures, such as nucleolus and the dendritic tree of Purkinje cells, were extracted by means of phase-contrast single-distance synchrotron radiation-based hard X-ray tomography. At the same time, conventional absorption-contrast, laboratory-based micro computed tomography was successfully applied to visualize brain components including individual Purkinje cells within a cerebellum specimen. Thus, the goal of isotropic-cellular-resolution visualization of soft tissues within a laboratory environment without application of any dedicated contrast agent was achieved. In this communication, we are discussing (1) to which extend the quality gain of the laboratory-based absorption-contrast tomography can be driven with respect to optical microscopy of stained tissue sections and (2) what value such a technique would add. As a proof of principle, four histological sections were affine-registered to corresponding three-dimensional (3D) tomography dataset. We are discussing a semi-automatic landmark-based 2D-3D registration framework and compare registration results based on mean square difference (MSD) metrics.

Conference Presentation

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Anna Khimchenko, Georg Schulz, Christos Bikis, Hans Deyhle, Natalia Chicherova, Simone E. Hieber, Gabriel Schweighauser, Jürgen Hench, and Bert Müller "Three-dimensional imaging of human brain tissues using absorption-contrast high-resolution X-ray tomography", Proc. SPIE 10162, Bioinspiration, Biomimetics, and Bioreplication 2017, 101620K (17 April 2017); https://doi.org/10.1117/12.2259977

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