Imaging striae distensae: a comparison between PS-OCT and digital dermoscopy

Area of Science:

• Dermatology
• Biomedical Optics
• Medical Imaging

Background:

• Stretch marks (striae distensae) are common skin conditions that can cause significant emotional distress.
• Objective and reliable methods for quantifying stretch mark severity are needed to assess treatment efficacy and patient well-being.

Purpose of the Study:

• To compare the effectiveness of visual scoring using clinical imaging versus polarization-sensitive optical coherence tomography (PS-OCT) for quantifying stretch mark severity.
• To investigate the relationship between visual assessment and optical properties of stretch marks.

Main Methods:

• Collected data from 19 volunteers, including visually normal skin and skin affected by stretch marks.
• Images of stretch marks were captured using a clinical visible-light dermatological camera (C-Cube).
• Local skin birefringence was measured using polarization-sensitive optical coherence tomography (PS-OCT).

Main Results:

• A weak correlation was observed between visual scores from C-Cube images and PS-OCT birefringence values.
• Skin affected by stretch marks exhibited significantly higher birefringence values compared to visually normal skin.
• PS-OCT provides a distinct optical signature for stretch marks.

Conclusions:

• PS-OCT shows potential as an objective tool for quantifying stretch mark severity.
• Birefringence measurement using PS-OCT may offer a more sensitive method than visual scoring for detecting changes in stretch mark tissue.
• Further research is warranted to validate PS-OCT for clinical assessment of striae distensae.