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MALDIVision

A Comprehensive Data Processing and Visualization Software for MALDI Imaging Mass Spectrometric Data

Matrix Assisted Laser Desorption Ionization Imaging Mass Spectrometry (MALDI IMS) is a promising new technology for visualizing the spatial distribution of analytes viz., proteins, peptides, lipids, drug candidate compounds and biomarkers present in a sampled tissue section. MALDI tissue imaging enables researchers to visualize multiple molecular distributions across the surface of a sample without the need for chemical labels or antibodies. MALDI IMS has been increasingly used for candidate biomarker discovery, drug metabolite profiling, lipid analysis and proteomics. MALDI tissue imaging contributes significantly towards disease diagnosis and is now being used to address a number of clinical questions in diseases such as cancer and organ development.

To apply MALDI Imaging technology for clinical purposes, it is essential to develop a computationally powerful data processing and visualization informatics tool which can aid in successful analysis of the large data files obtained during an experimental run.

MALDIVision, a comprehensive bioinformatics tool for MALDI tissue imaging, facilitates data processing, visualization and analysis of spatial distribution of individual ions across the sampled locations on a tissue section. The program accepts imaging mass spectrometric data in standard file formats. MALDIVision generates an ion intensity map for any m/z in the analysis range, enabling simultaneous imaging of many compounds. Users can view images in 2-D and in 3-D. MALDIVision also facilitates generation of Extracted Ion Image (EII) for specific mass peaks extracted directly from the mass spectrum. Users can display the reconstituted image, the EII as well as the optical image in different color gradients, so as investigate the localization or distribution of compounds present in a sample. MALDIVision facilitates co-registration and overlay of MALDI images. Additionally, to facilitate visualization of spatial distribution of multiple exogenous and endogenous compounds present in a tissue, upto 10 images can be overlaid.

MALDIVision supports the selection of multiple regions of interest, masking of specific areas to highlight important biological regions, displaying mass spectra of a particular location and image manipulation tools to render images in 2D and 3D. The region of biological significance can be marked to observe the ion intensity distribution. MALDIVision enables scrolling through the m/z peaks of a mass spectrum which in turn facilitates in analyzing spatial distribution of peptides, lipids and metabolites in tissue compartments. Users can generate a histogram and a cumulative probability graph to observe the ion intensity distribution in the defined ROI. The program also calculates the statistics such as mean, median, standard deviation for the region of interest chosen and exports them for lab records.

MALDIVision: Data processing




A Comprehensive Data Processing and Visualization Software for MALDI Imaging Mass Spectrometric Data

Matrix Assisted Laser Desorption Ionization Imaging Mass Spectrometry (MALDI IMS) is a promising new technology for visualizing the spatial distribution of analytes viz., proteins, peptides, lipids, drug candidate compounds and biomarkers present in a sampled tissue section. MALDI tissue imaging enables researchers to visualize multiple molecular distributions across the surface of a sample without the need for chemical labels or antibodies. MALDI IMS has been increasingly used for candidate biomarker discovery, drug metabolite profiling, lipid analysis and proteomics. MALDI tissue imaging contributes significantly towards disease diagnosis and is now being used to address a number of clinical questions in diseases such as cancer and organ development.

To apply MALDI Imaging technology for clinical purposes, it is essential to develop a computationally powerful data processing and visualization informatics tool which can aid in successful analysis of the large data files obtained during an experimental run.

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  • Support for Large MALDI IMS Data Files
  • Data Processing
  • Comprehensive Image Display
  • Normalized Image Display
  • Co-register and Overlay Image
  • Import Tissue Optical Image
  • Extract Ion Image
  • Define Region of Interest
  • View Histogram and Cumulative Probability Graph
  • Export Ion Intensity Maps
  • Project Management

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