Fig. 6

First column (a, d, g) = HSI color image; second column (b, e, h) = HSI StO2; third column (c, f, i) = HSI NIR Perfusion Index. First line (a–c) = t0, second row (d–f) = t1, third line (g–i) = t2. HSI photos and parameters over time. It becomes apparent that critical zones are already visible in the HSI, even though the clinical appearance is still regular (d–f). The critically areas both had to be removed and covered by meshed skin graft