Three-Dimensional Microscopy by Milling with Ultraviolet Excitation

Area of Science:

• Biomedical Imaging
• Histology
• Pathology

Background:

• Three-dimensional (3D) tissue analysis is crucial for understanding diseases like cancer and neurodegeneration.
• Current 3D microscopy methods are slow, costly, and limited to small sample sizes, hindering clinical application.
• There is a need for accessible 3D imaging solutions for large tissue volumes at cellular resolution.

Purpose of the Study:

• To introduce a novel, cost-effective 3D imaging methodology.
• To enable routine imaging of large biological samples at cellular resolution.
• To integrate 3D imaging into existing histology workflows.

Main Methods:

• Utilizes block-face imaging of paraffin-embedded tissue samples.
• Employs deep-ultraviolet (DUV) excitation for surface imaging.
• Ablates the imaged surface to sequentially image underlying tissue layers.
• Reconstructs image stacks for comprehensive 3D tissue models.

Main Results:

• Achieves fast and inexpensive 3D imaging of large tissue volumes.
• Provides cellular resolution beyond the capabilities of current 3D imaging systems.
• Demonstrates potential for integration into standard histology pipelines.

Conclusions:

• The proposed DUV block-face imaging method offers a practical solution for high-resolution 3D tissue analysis.
• This technique can significantly advance research in chronic diseases and improve clinical diagnostics.
• It overcomes limitations of existing 3D microscopy, making advanced imaging more accessible.