Burn Wound Dynamics Measured with Hyperspectral Imaging

Area of Science:

• Medical imaging
• Burn wound assessment
• Tissue perfusion analysis

Background:

• Burn wound progression and conversion are critical in the first four days post-injury.
• Accurate early assessment of burn depth is vital for effective treatment.
• Traditional visual inspection has limitations in evaluating deep tissue perfusion.

Purpose of the Study:

• To parametrically analyze and evaluate burn wound dynamics in the first four days using Hyperspectral Imaging (HSI).
• To investigate the depth-resolved perfusion of burn wounds.
• To assess the feasibility of early burn classification based on perfusion parameters.

Main Methods:

• Utilized Hyperspectral Imaging (HSI) with augmented model-based data processing.
• Analyzed 281 homogenous wound segments from 59 burn patients.
• Classified wounds retrospectively from day 0 to day 2 post-burn, evaluating upper and deeper perfusion parameters.

Main Results:

• Distinct perfusion patterns were observed across different burn severities (superficial dermal to full-thickness).
• Early burn degree estimation (day 0-1) presents challenges due to significant wound variability.
• Deeper tissue perfusion is crucial for classification but not visually discernible.

Conclusions:

• Early burn classification on day 0 or 1 shows limited reliability.
• Substantial variability in wound characteristics and dynamics impacts early assessment accuracy.
• Deeper perfusion analysis is essential for improved burn wound classification.