Fig. 4
From: Sulfatide imaging identifies tumor cells in colorectal cancer peritoneal metastases
Univariate analysis of MALDI-IMS data determining single lipids is the most discriminative between stroma-rich and tumor cells-rich areas. A ROC analysis (AUC values) testing the power of ST-related peaks to distinguish between normal peritoneum tissue or regions rich in stroma and areas rich in tumor cells. Note it is shown a portion of the spectrum containing 215-aligned peaks that was used for automatic segmentation showed in Fig. 3. B STs discriminate between PT19_06 (PM sample) and normal peritoneum. PT19_06 shows discriminant STs (d18:1-C16:0 and d18:1-C24:0-OH) ion intensity when compared to normal peritoneum