Reliability of Retinal Layer Annotation with a Novel, High-Resolution Optical Coherence Tomography Device: A...

Area of Science:

• Ophthalmology
• Medical Imaging
• Biomedical Engineering

Background:

• Optical coherence tomography (OCT) is crucial for in vivo diagnostics of retinal layers.
• Enhanced imaging resolution in OCT could improve diagnosis and monitoring of retinal diseases.
• Identifying new imaging biomarkers is essential for advancing ophthalmological diagnostics.

Purpose of the Study:

• To assess the benefit of a high-resolution OCT (High-Res OCT) platform compared to conventional OCT.
• To evaluate the retest reliability of retinal layer annotation using both OCT devices.
• To assess the impact of High-Res OCT on image quality in patients with age-related macular degeneration (AMD).

Main Methods:

• Thirty eyes with early/intermediate AMD and 30 control eyes underwent imaging with conventional and High-Res OCT.
• Retinal layer annotation reliability (inter- and intra-reader) was analyzed using EyeLab software.
• Subjective image quality was assessed using a mean opinion score (MOS) by two graders.

Main Results:

• High-Res OCT demonstrated significantly higher inter- and intra-reader reliability for retinal layer annotation.
• The mean opinion score (MOS) for image quality was significantly improved with High-Res OCT (9/8 vs. 9/7).
• High-Res OCT showed a trend towards improved retest reliability for the retinal pigment epithelium drusen complex in AMD eyes.

Conclusions:

• The improved axial resolution of High-Res OCT enhances the reliability of retinal layer annotation.
• High-Res OCT significantly improves perceived image quality and subjective resolution.
• The increased resolution of High-Res OCT holds potential benefits for automated image analysis algorithms in ophthalmology.