Fig. 3.

(a) ROC curves for the recovery fractions of ($\mathrm{\Delta }[\mathrm{HbT}]$), $\mathrm{\Delta }[\mathrm{HbDiff}]$, and $\mathrm{\Delta }[\mathrm{oxCCO}]$. (b) AUC of the $\mathrm{\Delta }[\mathrm{oxCCO}]$-RF is 0.99 and the test is 96% accurate with 100% sensitivity and 93% specificity. (c) The AUC of the $\mathrm{\Delta }[\mathrm{HbDiff}]$-RF is 0.9 and the test is 85% accurate for sensitivity and specificity of 77% and 93%, respectively. (d) The test for $\mathrm{\Delta }[\mathrm{HbT}]$-RF has the least accuracy (67%) and AUC (0.58) with poor sensitivity (46%) and specificity (86%). The threshold recovery fraction for each bNIRS signal is marked with a dotted line.