Table 2.
Between-Visit Variability in Thermal Images of 15 Participants With a History of Healed DFU(s) Over a One-Year Follow-Up Period.
| Initial | Month 1 | Month 2 | Month 3 | Month 4 | Month 5 | Month 6 | Month 7 | Month 8 | Month 9 | Month 10 | Month 11 | Month 12 | P value | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Proportion of plantar hotspots with ∆T ≥ 2.2°C (12 ROIs in 15 study participants) | 27.9% | 25.2% | 17.9% | 23.1% | 16.7% | 19.4% | 27.4% | 30.8% | 9.8% | 7.6% | 10.3% | 23.6% | 19.4% | .001 |
| Proportion of patients presenting with at least one plantar ROI with ∆T ≥ 2.2°C | 53.3% | 46.2% | 53.8% | 53.8% | 69.2% | 66.7% | 71.4% | 61.5% | 45.5% | 58.3% | 76.9% | 66.7% | 60.0% | >.05 |
| Proportion of patients presenting with plantar foot ∆T ≥ 2.2°C | 26.7% | 23.1% | 15.4% | 23.1% | 7.7% | 8.3% | 21.4% | 23.1% | 9.1% | 0.0% | 7.7% | 16.7% | 20.0% | >.05 |
| Proportion of patients presenting with wholefoot ∆T ≥ 2.2°C | 20.0% | 15.4% | 7.7% | 7.7% | 7.7% | 8.3% | 7.1% | 7.7% | 9.1% | 0.0% | 7.7% | 8.3% | 6.7% | >.05 |
Abbreviations: ∆T, temperature difference; ROI, region of interest.