Fig. 1.

(a) Schematic of the experimental setup for fluorescent imaging; (b) experimentally obtained images of a Lipofundin model medium without ICG (left) and with added ICG at a concentration of $6.5\times {10}^{-11}\mathrm{M}$ (right), the ROIs used for calculating the average S signals are highlighted in red; (c) spectral characteristics of ICG absorption and fluorescence for blood plasma, taken from Ref. 21, and the used filters and radiation sources.