Thermography Supported Color Duplex Ultrasound Accelerates ALT Perforator Imaging

Abstract

Background The anterolateral thigh flap is a versatile and dependable perforator flap and is a popular choice in the reconstruction of various body sites. The variable perforator anatomy suggests preoperative perforator imaging to improve safety and speed of dissection. An innovative perforator imaging technique is thermography, which lately gained attention in plastic surgery. Methods Thirty-two healthy participants were included in this randomized study. One thigh was examined with dynamic infrared thermography and consecutively with ultrasound, while the contralateral thigh was examined with ultrasound as standalone technology. Results The application of dynamic infrared thermography prior to ultrasound perforator identification significantly accelerated the ultrasound examination duration by 90 to 130 seconds. The mean duplex ultrasound examination duration correlated positively with the hotspot and perforator quantity per thigh. Conclusion The addition of thermographic perforator mapping can accelerate color duplex ultrasound anterolateral thigh perforator imaging. Furthermore, thermography supplements color duplex ultrasound with crucial information on angiosome location.

Thermal Challenges in Dynamic Infrared Thermography Used for Perforator Mapping

“…18 Another study that investigated the use of coupled DIRT with CDU in perforator mapping discovered that when CDU was aided by DIRT, the process was shorter by 90 to 130 seconds, which is significantly more efficient in the long term. 19 With the development of miniature thermal cameras that can connect directly to smartphones, this only furthers the accessibility and efficiency of the process and massively lowers the financial burden of this investigation.…”