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- W4285392326 abstract "Abstract Mass spectrometry imaging (MSI) has become a widespread analytical technique to perform nonlabeled spatial molecular identification. The Achilles' heel of MSI is the annotation and identification of molecular species due to intrinsic limitations of the technique (lack of chromatographic separation and the difficulty to apply tandem MS). Successful strategies to perform annotation and identification combine extra analytical steps, like using orthogonal analytical techniques to identify compounds; with algorithms that integrate the spectral and spatial information. In this review, we discuss different experimental strategies and bioinformatics tools to annotate and identify compounds in MSI experiments. We target strategies and tools for small molecule applications, such as lipidomics and metabolomics. First, we explain how sample preparation and the acquisition process influences annotation and identification, from sample preservation to the use of orthogonal techniques. Then, we review twelve software tools for annotation and identification in MSI. Finally, we offer perspectives on two current needs of the MSI community: the adaptation of guidelines for communicating confidence levels in identifications; and the creation of a standard format to store and exchange annotations and identifications in MSI." @default.
- W4285392326 created "2022-07-14" @default.
- W4285392326 creator A5034100739 @default.
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- W4285392326 creator A5062192621 @default.
- W4285392326 creator A5084239219 @default.
- W4285392326 creator A5084475848 @default.
- W4285392326 date "2022-07-13" @default.
- W4285392326 modified "2023-10-17" @default.
- W4285392326 title "What are we imaging? Software tools and experimental strategies for annotation and identification of small molecules in mass spectrometry imaging" @default.
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