Fig. 5

Examples of spectra measured with the DRS in different types of hepatic fat infiltration and various degrees of steatosis. Panel a the dashed lines correspond to the wavelength section (around 1200 nm) for which the spectra are altered by the presence of lipid. Panel b examples of spectra of normal hepatic mouse tissue and fatty mice livers with an increasing severity of macrovesicular steatosis. A more prominent inverse peak in the light spectrum in the vicinity of 1200 nm is related to a higher fat concentration in the measured tissue. A.u. indicates arbitrary units