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Single Camera-Based Dual-Channel Near-Infrared Fluorescence Imaging system.

Janghoon Choi1,2, Jun-Geun Shin3, Yoon-Oh Tak1

  • 1Intelligent Photonic IoT Research Center, Korea Photonics Technology Institute, Gwangju 61007, Republic of Korea.

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|December 23, 2022
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Summary
This summary is machine-generated.

This study introduces a compact, single-camera near-infrared (NIR) fluorescence imaging system. It enables real-time dual-channel NIR and color imaging, reducing surgical equipment bulk and cost.

Keywords:
dual-channel fluorescence imagingindocyanine greenmethylene bluenear-infrared fluorescence imaging systemreal-time imaging

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Area of Science:

  • Medical Imaging
  • Biophotonics
  • Surgical Technology

Background:

  • Conventional dual-channel near-infrared (NIR) fluorescence imaging systems often require multiple cameras and optical components.
  • This setup leads to increased equipment size, restricted surgical maneuverability, and higher manufacturing costs.
  • A need exists for more compact and cost-effective fluorescence imaging solutions in surgical settings.

Purpose of the Study:

  • To develop a novel, single-camera dual-channel NIR fluorescence imaging system.
  • To simultaneously acquire color and dual-channel NIR fluorescence images in real time.
  • To reduce the physical footprint and cost of fluorescence imaging equipment for surgical applications.

Main Methods:

  • Utilized a single camera with two image sensors for simultaneous color and single-channel NIR fluorescence acquisition.
  • Implemented time-division multiplexing for two channels synchronized with two excitation lasers.
  • Employed image processing techniques to mitigate crosstalk effects between fluorescent agents.

Main Results:

  • Successfully reduced the volume of the image acquisition unit compared to multi-camera systems.
  • Demonstrated real-time acquisition of color and dual-channel NIR fluorescence images.
  • Evaluated system performance, including sensitivity, crosstalk, and signal-to-background ratio for two fluorescent agents.

Conclusions:

  • The proposed single-camera system offers a compact and cost-effective alternative for dual-channel NIR fluorescence imaging.
  • Reduced equipment size improves usability during surgical procedures, minimizing movement obstruction.
  • This technological advancement has the potential to increase the adoption of advanced fluorescence imaging in clinical and animal studies.