Rapid vs. delayed infrared responses after ischemia reveal recruitment of different vascular beds
Ken Chang1, Stephen Yoon1, Niral Sheth1
1Infrared Imaging and Thermometry Unit, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, USA.
Quantitative Infrared Thermography Journal
|October 6, 2015
Abstract:
Continuous infrared imaging revealed transient changes in forearm temperature during arterial occlusion, reperfusion, and recovery in a healthy subject group. Processing the imaging data with the k-means algorithm further revealed reactive vascular sites in the skin with rapid or delayed temperature amplification. The observed temporal and spatial diversity of blood-flow-derived forearm temperature allow consideration of thermal-imaging guided placement of skin sensors to achieve enhanced sensitivity in monitoring of skin hemodynamics.
Keywords:
angiosomeimage processinginfrared imagingk-meansperipheral vasculaturepost-occlusion reactive hyperemiaprecision placement of sensorsskin microcirculationtemperature regulationthermography
