Figure 3 | Scientific Reports

Figure 3

From: In situ biomarker discovery and label-free molecular histopathological diagnosis of lung cancer by ambient mass spectrometry imaging

Figure 3

A visualization of the discriminatory power across individual diagnostic biomarker candidates and classification performance of the combined biomarker group.

(A) A heat map was used to depict the discriminatory power of each metabolite, estimated by the AUC. The colors correspond to the AUC values: red and blue represent high and low values, respectively. (B) The ROC curve illustrates the combined discriminatory performance of a group of valuable clinical biomarkers with AUC >0.90.

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