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Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis

Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis

Published on: October 17, 2016

Diffuse reflectance spectroscopy with a self-calibrating fiber optic probe.

Bing Yu¹, Henry Fu, Torre Bydlon

¹Department of Biomedical Engineering, Duke University, Durham, NC 27705, USA. bing.yu@duke.edu

|August 19, 2008

Summary

This summary is machine-generated.

A new fiber optic probe simplifies diffuse reflectance spectroscopy calibration. This self-calibrating probe improves accuracy for tissue optical properties, reducing errors in absorption and scattering measurements.

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Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Published on: December 2, 2017

Area of Science:

Biomedical Optics
Spectroscopy
Optical Engineering

Background:

Diffuse reflectance spectroscopy (DRS) calibration is complex, time-consuming, and prone to inaccuracies.
Accurate calibration is crucial for reliable tissue optical property measurements.
Existing methods struggle with instrument response, temporal fluctuations, and inter-device variability.

Purpose of the Study:

To develop and validate a novel fiber optic probe with real-time self-calibration capabilities.
To simplify and enhance the accuracy of tissue optical spectroscopy.
To overcome limitations of traditional DRS calibration techniques.

Main Methods:

A novel fiber optic probe incorporating real-time self-calibration was designed.
The probe was tested using liquid phantoms simulating various tissue optical properties.
Absorption and scattering coefficients were extracted using the self-calibrating probe.

Main Results:

The self-calibrating fiber optic probe demonstrated effective real-time calibration.
Accurate extraction of absorption coefficients with an average absolute error of 6.9% +/- 7.2%.
Accurate extraction of scattering coefficients with an average absolute error of 3.5% +/- 1.5%.

Conclusions:

The novel fiber optic probe offers a significant advancement in tissue optical spectroscopy.
Real-time self-calibration effectively addresses challenges in diffuse reflectance spectroscopy.
This technology promises more accurate and efficient optical property measurements for biomedical applications.