Document Detail


An application system for automation of constant-time radio frequency electron paramagnetic resonance imaging.
MedLine Citation:
PMID:  12941517     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A Windows based application system for data collection, Fourier reconstruction and analysis of pure phase encoded constant-time radio frequency electron paramagnetic resonance (EPR) images, is described. The graphical user interface (GUI) of the system was written in MATLAB version 5.0, using its built-in GUI utilities. Design considerations of the application system included speed, flexibility and user-friendly data display and analysis. To maximize the speed of image data collection, MATLAB's built-in C interface system, MEX was not used for data collection. Instead, MATLAB programs call the C programs from the DOS prompt directly, based on the data collection parameters entered through the GUI. Computational procedures included various digital signal-processing steps such as filtering, interpolation etc. for the Fourier reconstruction of 2D, and 3D EPR images from the pure phase encoded data. Examples of 2D images illustrating the performance of the system are presented. Although the application system has been developed for the specific purpose of EPR imaging, it can easily be adapted to other areas such as magnetic resonance microscopy as well.
Authors:
Andrew G Taube; Sankaran Subramanian; Ramachandran Murugesan; Nallathamby Devasahayam; James B Mitchell; Murali C Krishna; John A Cook
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Computer methods and programs in biomedicine     Volume:  72     ISSN:  0169-2607     ISO Abbreviation:  Comput Methods Programs Biomed     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-08-27     Completed Date:  2004-03-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8506513     Medline TA:  Comput Methods Programs Biomed     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  127-38     Citation Subset:  IM    
Affiliation:
Radiation Biology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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MeSH Terms
Descriptor/Qualifier:
Electron Spin Resonance Spectroscopy / methods*
Equipment Design
Fourier Analysis
Imaging, Three-Dimensional
Models, Theoretical*
Phantoms, Imaging
Radio Waves
Signal Processing, Computer-Assisted*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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