Related Experiment Video
Updated: Dec 10, 2025

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo
Published on: October 2, 2021
Dynamic contrast in scanning microscopic OCT
Dynamic contrast in optical coherence tomography (OCT) enhances visualization of cellular structures. Scanning frequency-domain OCT (FD-OCT) offers faster, depth-resolved imaging for histology-like analysis of unstained tissues.
Area of Science:
- Biomedical Optics
- Medical Imaging
- Histopathology
Background:
- Optical coherence tomography (OCT) offers high resolution but struggles with cellular contrast.
- Dynamic OCT signal fluctuations can reveal cellular and subcellular structures.
Purpose of the Study:
- To demonstrate dynamic contrast imaging using scanning frequency-domain OCT (FD-OCT).
- To leverage FD-OCT's advantages for faster, depth-resolved histological analysis of unstained tissues.
Main Methods:
- Utilized scanning frequency-domain OCT (FD-OCT) to evaluate dynamic OCT signal fluctuations.
- Explored depth-resolved imaging capabilities for tissue layer visualization.
Main Results:
- Demonstrated dynamic contrast in scanning FD-OCT, enabling visualization of cellular structures.
- Achieved faster acquisition times and reduced motion artifacts compared to FF-OCT.
- Showcased tomographic depth-sectioning for histology-like perspectives.
Conclusions:
- Dynamic contrast in FD-OCT is a promising technique for unstained tissue histological analysis.
- Scanning FD-OCT provides significant advantages in speed and depth resolution for microscopic imaging.
- This method facilitates histology-like analysis without the need for tissue staining.
More Related Videos
Related Concept Videos
Phase Contrast and Differential Interference Contrast Microscopy
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
Imaging Biological Samples with Optical Microscopy
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Confocal Fluorescence Microscopy
Two-Dimensional Microscopy in Microbiology
Electron Microscope Tomography and Single-particle Reconstruction
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Total Internal Reflection Fluorescence Microscopy

