Near-infrared probe-based confocal microendoscope for deep-tissue imaging
Jiafu Wang1,2, Hua Li1,2, Geng Tian1,2
1Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
Biomedical Optics Express
|October 16, 2018
Summary
A new near-infrared probe-based confocal microendoscope (pCM) achieves deep-tissue imaging at cellular resolution. This technology enhances contrast and signal-to-noise ratio for improved diagnostic capabilities in the digestive tract.
Area of Science:
- Biomedical optics
- Medical imaging technology
- Gastrointestinal diagnostics
Background:
- Conventional endoscopic imaging has limitations in deep tissue visualization.
- Cellular resolution imaging is crucial for early disease detection in the digestive tract.
- Near-infrared (NIR) light offers potential for enhanced tissue penetration and reduced scattering.
Purpose of the Study:
- To develop and demonstrate a near-infrared probe-based confocal microendoscope (pCM) for deep-tissue imaging.
- To evaluate the pCM's capability for achieving cellular resolution with improved image quality.
- To assess the potential of the pCM for real-time diagnosis of digestive tract diseases.
Main Methods:
- Utilized a 785 nm laser source for NIR excitation.
- Designed a probe-based confocal microendoscope (pCM) with a 2.6 mm diameter and long working distance.
- Compatible integration with conventional endoscopic systems.
- Performed theoretical simulations and experimental validation using mouse esophagus tissue.
Main Results:
- Achieved deep-tissue imaging at cellular resolutions.
- Demonstrated enhanced contrast and signal-to-noise ratio in obtained images.
- Validated the optimization of image quality using near-infrared light.
- Acquired abundant details of mouse esophagus at various depths.
Conclusions:
- The developed NIR pCM system enables high-resolution deep-tissue imaging.
- The system shows significant potential for real-time diagnosis of digestive tract diseases.
- This technology provides a strong foundation for future clinical applications in gastroenterology.
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