Related Experiment Video
Updated: Jan 10, 2026
Author Spotlight: Customized Light-Sheet Imaging for Investigating Myocardial Structures in Rodent Hearts
Published on: March 29, 2024
Axially swept dithered light-sheet microscope to reveal cardiac morphology
Insights
We developed axially swept dithered light-sheet (AS-DiLS) microscopy for high-resolution cardiac imaging. This technique achieves uniform resolution across large tissue volumes, enabling detailed cardiovascular microstructure and vascular network analysis.
Area of Science:
- Biomedical Engineering
- Optical Imaging
- Cardiovascular Research
Background:
- Assessing cardiovascular development and disease requires understanding cardiac microstructure and vascular networks.
- Light-sheet microscopy with tissue clearing offers high-resolution organ imaging but struggles with complex myocardial structures.
- Existing methods face limitations in resolution, imaging depth, and speed for trabeculated tissues.
Purpose of the Study:
- To overcome limitations in light-sheet microscopy for imaging trabeculated myocardium.
- To develop a method for uniform, high-resolution volumetric imaging of intact cardiovascular systems.
- To enhance imaging throughput and preserve resolution across large biological specimens.
Main Methods:
- Implemented high-speed dithered light-sheet (DiLS) illumination to extend the confocal region and improve the space-bandwidth product.
- Integrated DiLS with an axial sweeping approach to create axially swept dithered light-sheet (AS-DiLS) microscopy.
- Utilized temporal dynamics for illumination-detection interplay to maintain uniform resolution.
Main Results:
- AS-DiLS extended the effective confocal region by over 40% while preserving optical sectioning.
- Achieved uniform illumination over a 12.5-millimeter range with enhanced imaging throughput.
- Delivered near-isotropic resolution (~2.5 μm) suitable for intricate cardiac structures.
Conclusions:
- AS-DiLS microscopy provides a scalable platform for comprehensive cardiovascular morphology and topology assessment.
- The technique enables detailed investigation of ventricular trabeculae, vasculature, and extracellular matrix.
- AS-DiLS is applicable for imaging cardiovascular systems across developmental stages, from embryos to adults.
Abstract:
Understanding cardiac microstructure and vascular networks in their entirety is critical for assessing cardiovascular development, disease progression, and therapeutic interventions. Light-sheet microscopy combined with tissue clearing enables high-resolution volumetric imaging of intact organs but faces limitations in trabeculated myocardium due to trade-offs among light-sheet thickness, effective range, and frame rate. We exploit temporal dynamics that govern illumination-detection interplay to maintain uniform resolution across specimens. Building on this, we implemented high-speed dithered light-sheet (DiLS) illumination, extending the confocal region by over 40% and enhancing the space-bandwidth product while preserving optical sectioning. Integration of DiLS with a sweeping approach establishes the axially swept dithered light-sheet (AS-DiLS), which enhances imaging throughput while preserving axial resolution and enables uniform illumination up to 12.5-millimeter range. AS-DiLS delivers near-isotropic resolution (~2.5 μm) for investigating intricate ventricular trabeculae, vasculature, and extracellular matrix, providing a scalable platform for comprehensive cardiovascular morphology and topology assessment from embryos to adults.
Teaser:
Volumetric imaging reveals microstructure and vascular networks in their entirety with near-isotropic resolution.
