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Updated: Jun 5, 2026

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Published on: January 15, 2013

Polarization-sensitive spectral-domain optical coherence tomography using a multi-line single camera spectrometer.

Cheol Song¹, MyoungKi Ahn, DaeGab Gweon

¹Nano-Opto-Mechatronics Lab., Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea. feloveyou@kaist.ac.kr

|December 18, 2010

Summary

A new polarization-sensitive spectral domain optical coherence tomography (PS-SD-OCT) system uses a single camera for high-speed imaging. This technique successfully distinguishes between normal and cancerous muscle tissue in mice.

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Area of Science:

Biomedical Optics
Medical Imaging
Optical Coherence Tomography

Background:

Optical coherence tomography (OCT) is a valuable non-invasive imaging technique.
Distinguishing between normal and cancerous tissues is crucial for diagnosis.
Existing OCT methods may have limitations in speed or depth of penetration.

Purpose of the Study:

To develop a novel polarization-sensitive spectral domain optical coherence tomography (PS-SD-OCT) system.
To enhance imaging speed and measurable depth using a single camera spectrometer.
To evaluate the system's capability in differentiating between normal and cancerous tissues.

Main Methods:

Implementation of a single camera spectrometer with a custom grating and high-speed three-line CCD camera.
Utilizing vertically different incident angles to separate orthogonally polarized beams.
Acquiring OCT images of normal and cancerous muscle tissue from DSred GFP mice.

Main Results:

The PS-SD-OCT system achieved full camera speed imaging.
The system demonstrated an increased measurable depth.
Successful differentiation between normal muscle and cancerous tissue was achieved.
OCT images were compared with in vivo confocal microscopy findings.

Conclusions:

The developed PS-SD-OCT technique offers high-speed, deep-penetrating imaging.
This method shows promise for distinguishing between normal and cancerous biological tissues.
The system provides a valuable tool for biomedical imaging and cancer research.