Flap Monitoring using Thermal Imaging Camera: A Contactless Method

Area of Science:

• Plastic Surgery
• Medical Imaging
• Vascular Surgery

Background:

• Vascular insult in flaps can lead to permanent tissue damage.
• Early detection of compromised flap vascularity is crucial for successful reconstruction.
• Current clinical assessment methods have limitations in real-time monitoring.

Purpose of the Study:

• To evaluate the diagnostic accuracy of a thermal imaging camera for detecting vascular insult in flaps.
• To assess the thermal imaging camera's utility as an adjunct to clinical assessment in flap monitoring.

Main Methods:

• A descriptive study was conducted involving 84 patients undergoing pedicled and free flap procedures.
• Thermal imaging was used alongside clinical assessments (color, temperature, capillary refill) as the gold standard.
• Flap monitoring was performed for five days, with sensitivity and specificity of the thermal camera calculated.

Main Results:

• The thermal imaging camera demonstrated a diagnostic accuracy of 96.43%.
• High sensitivity (98.7%) and a positive predictive value of 97.4% were observed.
• Specificity was 75%, with a false-negative rate of 14.3%.

Conclusions:

• Thermal imaging cameras are effective and valuable adjuncts for flap monitoring.
• The contactless and easy-to-use nature of thermal imaging enhances clinical assessment.
• This technology aids in the early detection of vascular compromise, potentially preventing tissue damage.