Discrimination of Nasopharyngeal Carcinoma from Noncancerous Ex Vivo Tissue Using Reflectance Spectroscopy

Figure 5

Scatter plots of the posterior probability belonging to NPC and nasopharyngeal noncancerous subjects (▲—NPC group; ●—noncancerous group), generated from PCA-LDA diagnosis algorithms along with LOOCV method. Error bars represent the mean and standard deviation of NPC (magenta) and nasopharyngeal noncancerous (green) ex vivo tissue posterior probability. The dotted lines represented the sensitivities and specificities for separating NPC from nasopharyngeal noncancerous tissue.