Improvement of temporal resolution for three-dimensional continuous-wave electron paramagnetic resonance imaging

2008 ◽  
Vol 79 (12) ◽  
pp. 123701 ◽  
Author(s):  
Hideo Sato-Akaba ◽  
Hirotada Fujii ◽  
Hiroshi Hirata
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Temporal Resolution ◽  
Continuous Wave ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic Resonance Imaging ◽  
Electron Paramagnetic

Electron paramagnetic resonance imaging of tumor hypoxia: Enhanced spatial and temporal resolution for in vivo pO2 determination

2006 ◽  
Vol 55 (5) ◽  
pp. 1157-1163 ◽  
Author(s):  
Ken-ichiro Matsumoto ◽  
Sankaran Subramanian ◽  
Nallathamby Devasahayam ◽  
Thirumaran Aravalluvan ◽  
Ramachandran Murugesan ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Temporal Resolution ◽  
Tumor Hypoxia ◽  
Resonance Imaging ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic Resonance Imaging ◽  
Electron Paramagnetic

Three Dimensional (3D) Electron Paramagnetic Resonance Imaging Technique For Mapping Porosity in Ceramics

1990 ◽  
Vol 217 ◽  
Author(s):  
G. Kordas ◽  
Y.H. Kang
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Three Dimensional ◽  
Gradient Coil ◽  
Resonance Imaging ◽  
Paramagnetic Resonance ◽  
Pumice Stone ◽  
Dimensional Image ◽  
Electron Paramagnetic Resonance Imaging ◽  
3D Electron ◽  
Electron Paramagnetic

ABSTRACTA three dimensional (3D) Electron Paramagnetic Resonance Imaging (EPRI) method has been developed to probe the structure and size of pores in ceramic materials. A computer control current source and magnetic field gradient coil assembly were added on the conventional EPR instrument as imaging devices. This added-on facility was tested using a phantom sample having cavities filled with DPPH (2,2-diphenyl-1-picrylhydrazyl) particles. Pumice was then used to demonstrate the feasibility of the technique. Porous pumice stone was immersed in a 0.5mM 15N-PDT-water solution to introduce the spin labels into the open volume of the sample. A two-dimensional image was reconstructed from a set of 1-D projections using a filtered back-projection technique. A three-dimensional image was derived from 22 2-D images each constructed by 22 1-D projections. At present, the facility allows a resolution of 69 and 46 μm for 2-D and 3-D imaging.

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