| Benchtop-MRI for in vivo imaging using a macromolecular contrast agent based on hydroxyethyl starch (HES). | |
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MedLine Citation:
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PMID: 21056646 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Magnetic resonance imaging (MRI) is a powerful non-invasive diagnostic tool in the clinical setting. However, the wide spread use of small animal MRI instruments for preclinical research purposes has been limited by the need for strong magnets operating in the range of 4.7-11.7T. To obtain such strong and homogenous magnetic fields, superconducting electromagnets cooled with liquid helium are used, which highly increases the costs for research studies. Here we report on the use of a pilot 0.5T benchtop MRI (BT-MRI) operating with a permanent magnet and designed for in vivo imaging of mice. It was used to evaluate a novel macromolecular MRI contrast agent based on a Gd-chelate of hydroxyethyl starch (Gd-HES). Images obtained by the BT-MRI showed the high contrast enhancement of Gd-HES, its longevity in the circulation, as well as its utility for tumor diagnosis, urography and angiography. These results demonstrate the potential of the new BT-MRI as a useful research tool, as well as that of Gd-HES as a new MRI contrast agent. |
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Authors:
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Ahmed Besheer; Henrike Caysa; Hendrik Metz; Thomas Mueller; Jörg Kressler; Karsten Mäder |
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Publication Detail:
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Type: Journal Article Date: 2010-11-05 |
Journal Detail:
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Title: International journal of pharmaceutics Volume: 417 ISSN: 1873-3476 ISO Abbreviation: Int J Pharm Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-08-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7804127 Medline TA: Int J Pharm Country: Netherlands |
Other Details:
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Languages: eng Pagination: 196-203 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Martin-Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, D-06120 Halle/Saale, Germany; Department of Physical Chemistry, Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle/Saale, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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