How a PodiaScan screening works

Thermal asymmetry between matching zones on the left and right foot is one of the earliest measurable signals of diabetic foot inflammation. PodiaScan turns that comparison into a repeatable, about two-minute routine in a no-download web app.

1. 1. Take the reading

   Turn on your thermometer, take the reading for the spot, and record it in PodiaScan.

2. 2. Record fourteen points

   Seven zones are measured on each foot — hallux, metatarsal head region (ball of foot), central forefoot (metatarsal shaft region), fifth metatarsal head, midfoot and heel on the sole, plus the dorsal midfoot on the top of the foot — giving fourteen readings per session.

3. 3. Compare left against right

   Each zone is compared with the same zone on the opposite foot. The absolute difference is the contralateral delta.

4. 4. Colour-coded triage

   Under 1.5 °C is green, 1.5–2.1 °C is an amber warning, and 2.2 °C or greater is flagged crimson and raises a critical inflammation alert.

5. 5. Store, trend and export

   Sessions are saved against the patient record, plotted over a rolling 90-day window and exported as a branded clinical PDF report.

Sample scan · right midfoot zone flagged as a hotspot