Advances in swept-source optical coherence tomography and optical coherence tomography angiography

Area of Science:

• Ophthalmology
• Medical Imaging
• Biomedical Engineering

Background:

• Swept-source optical coherence tomography (SS-OCT) and swept-source optical coherence tomography angiography (SS-OCTA) have rapidly advanced.
• These techniques are now essential clinical imaging modalities for both anterior and posterior eye segments.

Purpose of the Study:

• To highlight the evolution and clinical impact of SS-OCT and SS-OCTA.
• To discuss the technical advantages and improved understanding of ocular structures and diseases enabled by these technologies.

Main Methods:

• Utilizing longer wavelength and faster acquisition speeds in SS-OCT and SS-OCTA.
• Employing advanced algorithms to enhance image quality and enable automated quantification of metrics.
• Achieving larger field of view for posterior segment imaging and 360-degree visualization for the anterior segment.

Main Results:

• Improved visualization of structures and vasculature beneath pigmented tissues.
• Enhanced image quality and automated quantification of OCT and OCTA data.
• Significant enrichment of the understanding of healthy and diseased eyes.

Conclusions:

• SS-OCT and SS-OCTA demonstrate rapid technological evolution.
• Despite initial cost limitations, clinical adoption is increasing.
• These imaging modalities are poised to drive a paradigm shift in ophthalmic diagnostics and practice.