Literature DB >> 8739367

Present status of electron paramagnetic resonance (EPR) spectroscopy/imaging for free radical detection.

M Ferrari1, V Quaresima, A Sotgiu.   

Abstract

Our group and others have been working on the development of EPR imaging to obtain "in vivo" free radical images. Using a 280 MHz apparatus a pyrrolidine nitroxide free radical was localized in the rat abdomen and thorax during its kinetic in whole body. We investigated the role of different experimental and instrumental parameters on the resolution of the images. The conclusion of these studies is that the instrumentation presents the advantage to perform EPR measurements on whole body rats with limited sensitivity (50 microM). The present resolution (8 mm) allows to get images in which it is not possible to resolve all the organs; instead L-band instruments provide images of single organs (up to 25 mm in size) with a higher resolution.

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Year:  1996        PMID: 8739367     DOI: 10.1007/bf02346371

Source DB:  PubMed          Journal:  Pflugers Arch        ISSN: 0031-6768            Impact factor:   3.657


  4 in total

1.  ESR measurement of radical clearance in lung of whole mouse.

Authors:  K Takeshita; H Utsumi; A Hamada
Journal:  Biochem Biophys Res Commun       Date:  1991-06-14       Impact factor: 3.575

2.  Simultaneous 280 MHz EPR imaging of rat organs during nitroxide free radical clearance.

Authors:  M Alecci; M Ferrari; V Quaresima; A Sotgiu; C L Ursini
Journal:  Biophys J       Date:  1994-09       Impact factor: 4.033

3.  Whole rat electron paramagnetic resonance imaging of a nitroxide free radical by a radio frequency (280 MHz) spectrometer.

Authors:  V Quaresima; M Alecci; M Ferrari; A Sotgiu
Journal:  Biochem Biophys Res Commun       Date:  1992-03-16       Impact factor: 3.575

4.  Three-dimensional spatial EPR imaging of the rat heart.

Authors:  P Kuppusamy; P Wang; J L Zweier
Journal:  Magn Reson Med       Date:  1995-07       Impact factor: 4.668

  4 in total
  6 in total

1.  Progressive EPR imaging with adaptive projection acquisition.

Authors:  Yuanmu Deng; Periannan Kuppusamy; Jay L Zweier
Journal:  J Magn Reson       Date:  2005-06       Impact factor: 2.229

2.  Automated on-the-fly detection and correction procedure for EPR imaging data acquisition.

Authors:  Rizwan Ahmad; Deepti S Vikram; Sergey Petryakov; Yuanmu Deng; Jay L Zweier; Periannan Kuppusamy; Bradley Clymer
Journal:  Magn Reson Med       Date:  2006-09       Impact factor: 4.668

3.  A parametric approach to spectral-spatial EPR imaging.

Authors:  Subhojit Som; Lee C Potter; Rizwan Ahmad; Periannan Kuppusamy
Journal:  J Magn Reson       Date:  2007-01-12       Impact factor: 2.229

4.  Quasi Monte Carlo-based isotropic distribution of gradient directions for improved reconstruction quality of 3D EPR imaging.

Authors:  Rizwan Ahmad; Yuanmu Deng; Deepti S Vikram; Bradley Clymer; Parthasarathy Srinivasan; Jay L Zweier; Periannan Kuppusamy
Journal:  J Magn Reson       Date:  2006-11-13       Impact factor: 2.229

5.  Enhanced resolution for EPR imaging by two-step deblurring.

Authors:  Rizwan Ahmad; Bradley Clymer; Deepti S Vikram; Yuanmu Deng; Hiroshi Hirata; Jay L Zweier; Periannan Kuppusamy
Journal:  J Magn Reson       Date:  2006-11-20       Impact factor: 2.229

6.  Uniform distribution of projection data for improved reconstruction quality of 4D EPR imaging.

Authors:  Rizwan Ahmad; Deepti S Vikram; Bradley Clymer; Lee C Potter; Yuanmu Deng; Parthasarathy Srinivasan; Jay L Zweier; Periannan Kuppusamy
Journal:  J Magn Reson       Date:  2007-05-25       Impact factor: 2.229

  6 in total

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