Investigation of peripheral vascular disorders using thermal imaging

Infrared thermal imaging has been used to study non-invasive diagnosis of peripheral vascular diseases. Temperature gradients indicating abnormal blood flow in the affected regions of patients with vascular disorders are well correlated with clinical findings. The temperature in the affected regions was about 0.7—1°C above the normal regions, due to slow blood circulation. Thermal imaging is an effective technique for detecting small temperature changes due to vascular disorders, it is non-invasive, portable, compact and safe.