Use of infrared thermography to detect early alterations of peripheral perfusion: evaluation in a porcine model

Mathieu Magnin (1) , Stéphane Junot (1) , Martina Cardinali (1) , Jean Yves Ayoub (1) , Christian Paquet (1) , Vanessa Louzier (1) , Jeanne-Marie Bonnet-Garin (1) , Bernard Allaouchiche (1, 2)

1 APCSé - Agressions Pulmonaires et Circulatoires dans le Sepsis - UR
2 CHLS - Centre Hospitalier Lyon Sud [CHU - HCL]

This study aimed to evaluate the variations of infrared thermography according to rapid hemodynamic changes, by measuring the peripheral skin temperature in a porcine model. Eight healthy piglets were anesthetized and exposed to different levels of arterial pressure. Thermography was performed on the left forelimb to measure carpus and elbow skin temperature and their associated gradient with the core temperature. Changes in skin temperature in response to variations of blood pressure were observed. A negative correlation between arterial pressure and temperature gradients between peripheral and core temperature and a negative correlation between cardiac index and these temperature gradients were observed. Thermography may serve as a tool to detect early changes in peripheral perfusion.

Domaines: Cardiologie et système cardiovasculaire; Imagerie

Mathieu Magnin, Stéphane Junot, Martina Cardinali, Jean Yves Ayoub, Christian Paquet, et al.. Use of infrared thermography to detect early alterations of peripheral perfusion: evaluation in a porcine model. Biomedical optics express, 2020, 11 (5), pp.2431. ⟨10.1364/boe.387481⟩. ⟨hal-03240863⟩