Tissue temps in vicinity of ulcers were much lower in participants with PAD, with or without diabetes 

More intriguing work validating the usefulness of thermometry and asymmetries to identify diabetic foot pathology.

J Diabetes Complications. 2017 Apr 28. pii: S1056-8727(17)30359-8. doi: 10.1016/j.jdiacomp.2017.04.022. [Epub ahead of print]

Source: Multi-center feasibility study of microwave radiometry thermometry for non-invasive differential diagnosis of arterial disease in diabetic patients… – PubMed – NCBI