期刊
CONTRAST MEDIA & MOLECULAR IMAGING
卷 10, 期 4, 页码 266-281出版社
WILEY-HINDAWI
DOI: 10.1002/cmmi.1630
关键词
EPR; MRI; contrast agent; nitroxide; oxygen; iron oxide
The purpose of this paper is to describe some of the areas where electron paramagnetic resonance (EPR) has provided unique information to MRI developments. The field of application mainly encompasses the EPR characterization of MRI paramagnetic contrast agents (gadolinium and manganese chelates, nitroxides) and superparamagnetic agents (iron oxide particles). The combined use of MRI and EPR has also been used to qualify or disqualify sources of contrast in MRI. Illustrative examples are presented with attempts to qualify oxygen sensitive contrast (i.e. T-1- and T-2*-based methods), redox status or melanin content in tissues. Other areas are likely to benefit from the combined EPR/MRI approach, namely cell tracking studies. Finally, the combination of EPR and MRI studies on the same models provides invaluable data regarding tissue oxygenation, hemodynamics and energetics. Our description will be illustrative rather than exhaustive to give to the readers a flavour of what EPR can do for MRI'. Copyright (C) 2014 John Wiley & Sons, Ltd.
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