Fig. 1. Scheme of OCT imaging system

Fig. 2. OCT imaging of two mice with the ear infected by bacteria. (a) Imaging of ear of mouse 1, the red box stands for the scanning area (4 mm×4 mm), while the white circle is the infected area; (b) imaging results of mouse 2; (c) variation of OCT intensity in scanning area with infection time, **represents P<0.01, and ***represents P<0.001; (d) variation of normalized angiogram vessel density (AVD) with infection time; (e) OCT signal attenuation curves with depth in normal and inflamed

Fig. 3. OCT microvascular networks of palm from healthy subject, and the red box stands for scanning areas (4 mm×4 mm)