Depth-resolved transverse-plane motion tracking with configurable measurement features via optical coherence...

Area of Science:

• Biomedical Optics
• Medical Imaging
• Optical Engineering

Background:

• Optical Coherence Tomography (OCT) is a widely used noninvasive imaging technique in medicine.
• Existing OCT methods primarily focus on structural imaging, with limited capabilities for motion tracking.

Purpose of the Study:

• To introduce a novel OCT-based technique, OCT-MT, for depth-resolved transverse-plane motion tracking.
• To demonstrate the configurable measurement features of OCT-MT for enhanced motion analysis.

Main Methods:

• The OCT-MT technique utilizes OCT circular scanning combined with speckle spatial oversampling.
• Depth-resolved transverse-plane motion tracking is achieved through analysis of speckle patterns within OCT data.
• Measurement parameters such as range and resolution are configurable by adjusting scanning settings.

Main Results:

• OCT-MT successfully performs depth-resolved transverse-plane motion tracking.
• The technique reduces requirements for input power, surface reflectivity, and roughness.
• Configurable parameters allow for flexible motion tracking measurements.

Conclusions:

• The proposed OCT-MT technique expands the capabilities of OCT beyond imaging to include motion tracking.
• OCT-MT offers a versatile tool for analyzing dynamic processes in biological tissues noninvasively.