Deblurring molecular images using desorption electrospray ionization mass spectrometry

Annu Int Conf IEEE Eng Med Biol Soc. 2009:2009:6731-4. doi: 10.1109/IEMBS.2009.5332854.

Abstract

Traditional imaging techniques for studying the spatial distribution of biological molecules such as proteins, metabolites, and lipids, require the a priori selection of a handful of target molecules. Imaging mass spectrometry provides a means to analyze thousands of molecules at a time within a tissue sample, adding spatial detail to proteomic, metabolomic, and lipidomic studies. Compared to traditional microscopic images, mass spectrometric images have reduced spatial resolution and require a destructive acquisition process. In order to increase spatial detail, we propose a constrained acquisition path and signal degradation model enabling the use of a general image deblurring algorithm. Our analysis shows the potential of this approach and supports prior observations that the effect of the sprayer focuses on a central region much smaller than the extent of the spray.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antimalarials / analysis
  • Artemisinins / analysis
  • Artesunate
  • Molecular Imaging / methods*
  • Spectrometry, Mass, Electrospray Ionization / methods*
  • Tablets

Substances

  • Antimalarials
  • Artemisinins
  • Tablets
  • Artesunate