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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Mol Cancer Res. 2019 Feb 11;17(5):1155–1165. doi: 10.1158/1541-7786.MCR-18-1057

Fig. 5.

Fig. 5

MALDI FT ICR MSI of validation set of prostate tissue specimens, a) H&E image of tissue section post-MALDI analysis with tumor region, as determined by an expert pathologist, outlined in black, b) segmentation map of MALDI MSI data produced via k-means clustering (k = 8), c) m/z 780.5483 which is identified as cardiolipin CL(80:9) (Δppm = 0.18), d) m/z 697.4776 which is identified as phosphatidic acid PA(34:1) (Δppm = 0.43), e) m/z 782.5655 which is identified as phosphatidylcholine PC(34:1) (Δppm = 1.93), f) m/z 943.5682 which is identified as phosphatidylinositol PI(44:9) (Δppm = 1.34).