OmniSpect: An Open MATLAB-Based Tool for Visualization and Analysis of Matrix-Assisted Laser Desorption/Ionization and Desorption Electrospray Ionization Mass Spectrometry Images

• Type of Material: Article
• Authors: R. Mitchell Parry, Emory University; Asiri S. Galhena, Georgia Institute of Technology; Chaminda M. Gamage, Georgia Institute of Technology; Rachel V. Bennett, Georgia Institute of Technology; Dongmei Wang, Emory University; Facundo M. Fernandez, Georgia Institute of Technology
• Language: English
• Date: 2013-04-01
• Publisher: Springer
• Publication Version: Author Accepted Manuscript (After Peer Review)
• Copyright Statement: © 2013 American Society for Mass Spectrometry.
• Final Published Version (URL): http://dx.doi.org/10.1007/s13361-012-0572-y
• Title of Journal or Parent Work: Journal of the American Society for Mass Spectrometry
• Volume: 24
• Issue: 4
• Start Page: 646
• End Page: 649
• Grant/Funding Information: This research was also supported by NIH grant U54CA119338, a Georgia Cancer Coalition Distinguished Cancer Scholar Award to Professor MDW, Hewlett Packard, and Microsoft Research.; We acknowledge support from ARRA NSF MRI Instrument Development grant #0923179 to FMF and MDW
• Keywords: MULTIVARIATE STATISTICAL-ANALYSIS; Biochemical Research Methods; Chemistry; Chemistry, Physical; CURVE RESOLUTION; Software; SYSTEM; Science & Technology; MATLAB; Technology; Matrix-assisted laser desorption ionization (MALDI); Desorption electrospray ionization (DESI); Life Sciences & Biomedicine; Spectroscopy; Multivariate image analysis; Mass spectrometry imaging; Data processing; Biochemistry & Molecular Biology; TOF-SIMS; Chemistry, Analytical; Physical Sciences; Web-based tool
• Research Categories: Engineering, Biomedical

Abstract

We present omniSpect, an open source web- and MATLAB-based software tool for both desorption electrospray ionization (DESI) and matrix-assisted laser desorption ionization (MALDI) mass spectrometry imaging (MSI) that performs computationally intensive functions on a remote server. These functions include converting data from a variety of file formats into a common format easily manipulated in MATLAB, transforming time-series mass spectra into mass spectrometry images based on a probe spatial raster path, and multivariate analysis. OmniSpect provides an extensible suite of tools to meet the computational requirements needed for visualizing open and proprietary format MSI data.