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Changes in statistical moments of DTOFs of diffuse reflectance measured after injection of 5 mg/L solution of ICG into the tube of the phantom at T0 = 24 s. The peaks observed at T ≈35 s are related to the inflow of the dye to the segment of the tube located deeper whereas the peak appearing later (at T ≈70 s) is related to the dye inflow into the segment of the tube located superficially.
