Table 1.

Mean variation of each target from known CO-oximeter reading across all sO₂ values tested. Unless stated otherwise, values are average error across the varying sO₂ values ± average value of the standard deviation across the ten samples at each sO₂ value. Top row of each prostate/distance combination represents data before fluence normalization (dark shading), while bottom row represents data after local fluence correction (light shading). The unmixing columns represent data from 6-wavelength linear unmixing, while the 2-wavelength columns represent data from 2-wavelength unmixing. “Total” estimate inaccuracy reports the estimation accuracy of all sO₂ values, while “relevant” estimate inaccuracy reports only accuracy of sO₂ values greater than 50%. The letter in the final column codifies the sequence of sO₂ values used for each target, as defined by the following: A = 100%, 82%, 66%, 57%, 52%, 36%, 14%; B = 95%, 85%, 72%, 62%, 48%, 20%; C = 99%, 86%, 70%, 55%, 48%, 34%, 19%; D = 100%, 89%, 71%, 63%, 57%, 41%; E = 100%, 90%, 81%, 65%, 58%, 48%, 34%; F = 100%, 90%, 64%, 59%, 48%, 35%.