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Clinical applications of chemical exchange saturation transfer (CEST) MRI.

Identifieur interne : 000711 ( Main/Exploration ); précédent : 000710; suivant : 000712

Clinical applications of chemical exchange saturation transfer (CEST) MRI.

Auteurs : Kyle M. Jones [États-Unis] ; Alyssa C. Pollard [États-Unis] ; Mark D. Pagel [États-Unis]

Source :

Journal of magnetic resonance imaging : JMRI [ 1522-2586 ] ; 2017.

RBID : pubmed:28792646

Abstract

Chemical exchange saturation transfer (CEST) magnetic resonance imaging (MRI) has been developed and employed in multiple clinical imaging research centers worldwide. Selective radiofrequency (RF) saturation pulses with standard 2D and 3D MRI acquisition schemes are now routinely performed, and CEST MRI can produce semiquantitative results using magnetization transfer ratio asymmetry (MTRasym ) analysis while accounting for B0 inhomogeneity. Faster clinical CEST MRI acquisition methods and more quantitative acquisition and analysis routines are under development. Endogenous biomolecules with amide, amine, and hydroxyl groups have been detected during clinical CEST MRI studies, and exogenous CEST agents have also been administered to patients. These CEST MRI tools show promise for contributing to assessments of cerebral ischemia, neurological disorders, lymphedema, osteoarthritis, muscle physiology, and solid tumors. This review summarizes the salient features of clinical CEST MRI protocols and critically evaluates the utility of CEST MRI for these clinical imaging applications.

DOI: 10.1002/jmri.25838
PubMed: 28792646

Affiliations:

Le document en format XML

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<wicri:regionArea>Department of Biomedical Engineering, University of Arizona, Tucson, Arizona</wicri:regionArea>
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<author><name sortKey="Pagel, Mark D" sort="Pagel, Mark D" uniqKey="Pagel M" first="Mark D" last="Pagel">Mark D. Pagel</name>
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<front><div type="abstract" xml:lang="en">Chemical exchange saturation transfer (CEST) magnetic resonance imaging (MRI) has been developed and employed in multiple clinical imaging research centers worldwide. Selective radiofrequency (RF) saturation pulses with standard 2D and 3D MRI acquisition schemes are now routinely performed, and CEST MRI can produce semiquantitative results using magnetization transfer ratio asymmetry (MTRasym ) analysis while accounting for B0 inhomogeneity. Faster clinical CEST MRI acquisition methods and more quantitative acquisition and analysis routines are under development. Endogenous biomolecules with amide, amine, and hydroxyl groups have been detected during clinical CEST MRI studies, and exogenous CEST agents have also been administered to patients. These CEST MRI tools show promise for contributing to assessments of cerebral ischemia, neurological disorders, lymphedema, osteoarthritis, muscle physiology, and solid tumors. This review summarizes the salient features of clinical CEST MRI protocols and critically evaluates the utility of CEST MRI for these clinical imaging applications.</div>
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Clinical applications of chemical exchange saturation transfer (CEST) MRI.

Clinical applications of chemical exchange saturation transfer (CEST) MRI.

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