Spectral domain optical coherence tomography: a better OCT imaging strategy

Area of Science:

• Biomedical Optics
• Medical Imaging Technology
• Ophthalmology

Background:

• Optical Coherence Tomography (OCT) is a key imaging modality.
• Spectral Domain OCT (SDOCT) enhances OCT capabilities.
• SDOCT provides depth-resolved tissue information.

Purpose of the Study:

• To review the current research landscape of SDOCT.
• To compare different SDOCT implementation methods.
• To discuss future research directions in SDOCT.

Main Methods:

• Review of interferometric techniques for SDOCT.
• Analysis of broadband source and spectrometer approach.
• Evaluation of narrowband tunable laser approach.

Main Results:

• SDOCT enables ultra-high-speed OCT imaging due to a stationary reference arm.
• SDOCT demonstrates superior sensitivity compared to traditional methods.
• Two primary SDOCT approaches offer distinct advantages and trade-offs.

Conclusions:

• SDOCT is indispensable for modern biomedical imaging.
• Further research will explore OCT enhancements and functional methods.
• SDOCT technology is poised for continued advancements.