Automated three-dimensional characterization of osteoclastic resorption lacunae by stereoscopic scanning electron microscopy | JoVE Visualize

Automated three-dimensional characterization of osteoclastic resorption lacunae by stereoscopic scanning electron microscopy

K Fuller¹, J T Thong, B C Breton

¹Department of Histopathology, St. George's Hospital Medical School, London, England.

Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research|January 1, 1994

View abstract on PubMed

Summary

This study introduces a novel stereoscopic scanning electron microscopy technique for high-resolution 3D bone analysis. The method quantifies osteoclast excavations, offering detailed insights into bone tissue structure.

Area of Science:

Biomaterials Science
Cell Biology
Microscopy Techniques

Background:

Osteoclast activity is crucial for bone remodeling.
Quantitative analysis of osteoclast excavations is challenging with traditional methods.
Existing techniques lack the resolution and 3D capabilities for detailed bone topography.

Purpose of the Study:

To evaluate a novel stereoscopic scanning electron microscopy (SEM) technique for quantitative topographic analysis of osteoclast excavations.
To develop a high-resolution 3D imaging method for bone tissue structure.
To overcome limitations of mechanical stage tilting in SEM.

Main Methods:

Utilized stereoscopic SEM with electron beam tilting instead of mechanical stage tilting.
Employed cross-correlation of real-time stereo pairs to determine image shift.
Implemented a feedback loop for dynamic correction of tilt axis and lens focus.
Generated quantitative height difference measurements.

Main Results:

Achieved rapid, high-resolution quantitative measurements of excavation topography.
Produced relative heights, line profiles, area topography maps, and 3D reconstructions.
Combined the topographic data acquisition of confocal microscopy with the resolution and depth of field of SEM.
Demonstrated the technique's efficacy in analyzing osteoclastic bone excavations.

Conclusions:

The developed stereoscopic SEM technique enables precise, high-resolution 3D topographic analysis of bone structures.
This innovative approach facilitates detailed study of osteoclast-bone interactions.
The technique holds promise for advancing the understanding of bone tissue at a microstructural level.