Abstract
Superparamagnetic iron oxide-based contrast agents enhance and complement in vivo magnetic resonance imaging (MRI) by shortening T2 and T2* relaxation times. They are able to highlight areas of cellular inflammation, being detected and engulfed by cells of the reticuloendothelial system, and can be targeted to specific cellular processes or subtypes using antibody or ligand labeling. These agents have been used preclinically for the assessment of cardiac transplant rejection, cardiomyocyte apoptosis, myocardial infarction, myocarditis, and stem and endothelial cell imaging, with clinical applications now emerging. We here review recent studies using iron oxide particles to image cardiac inflammation, and highlight the potential of these agents for future clinical and research applications.
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Funding
The British Heart Foundation (BHF) and Chief Scientist Office (CSO) have provided grants supporting work in this field at our center carried out by CS, JR and DEN. Work currently carried out by CS and DEN is supported by grants from the the BHF (FS/12/83/29781) and the CSO (ETM/266). JR was supported by a BHF Clinical PhD Training Fellowship (FS/07/060). DEN is supported by the British Heart Foundation (CH/09/002).
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Colin G Stirrat, David E Newby, Jennifer MJ Robson, and Maurits A Jansen declare that they have no conflict of interest.
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This article does not contain any studies with human or animal subjects performed by any of the authors.
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Stirrat, C.G., Newby, D.E., Robson, J.M.J. et al. The Use of Superparamagnetic Iron Oxide Nanoparticles to Assess Cardiac Inflammation. Curr Cardiovasc Imaging Rep 7, 9263 (2014). https://doi.org/10.1007/s12410-014-9263-3
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DOI: https://doi.org/10.1007/s12410-014-9263-3