Stess et al.37 and Clark et al.40 described the use of infrared thermography to assess skin temperatures in diabetics, diabetics with neuropathic fractures, diabetics with ulcers, patients with leprosy, and controls. They found that neuropathic foot ulcers frequently had increased skin temperatures surrounding a central necrotic area and suggested that infrared thermometry may be a useful technique to identify patients at risk for ulceration.40 Benbow and coworkers38 took this work a step further and evaluated foot temperatures as a tool to identify diabetics at risk of foot ulceration. They suggested that thermographic patterns could be used to screen high-risk patients.38 They prospectively evaluated 50 patients with diabetes and sensory neuropathy for 3 to 4 years. Six patients developed a neuropathic ulcer during the study period. These patients had significantly higher foot temperatures at baseline than patients who did not ulcerate. All of these early studies used liquid crystal contact thermography to map temperature patterns on the sole of the foot. The devices used in these studies were bulky, expensive and difficult to use or integrate into a normal clinical setting.