Terahertz Time-Domain imaging of feet of diabetic and non-diabetic patients.

We present a dataset of terahertz time-domain spectral images of the feet of 80 individuals with type 2 diabetes and 98 non-diabetic subjects. The dataset includes demographic information such as age, sex, weight, height, smoking status, and body mass index. For diabetic participants, the results of the Semmes-Weinstein monofilament test used to assess peripheral neuropathy are also provided. To our knowledge, this dataset represents the largest collection of in vivo cutaneous terahertz reflection spectra from human subjects published to date. The data are made available to support independent analysis and may enable further investigation of the dielectric properties and structure of human skin, as well as potential effects of diabetes. Scripts for loading and visualizing the data are provided in both Matlab and Python. The dataset and accompanying scripts are publicly available at https://doi.org/10.6084/m9.figshare.31052176.