## Abstract An intravascular ironโbased contrast agent was used as a sodium (^23^Na) MRI __T__~2~ relaxant in an effort to suppress the blood signal from the ventricular cavities in normal and infarcted canine myocardium in vivo. ^23^Na MRI signal decreases in blood were attributed to decreases in
Assessment of a superparamagnetic iron oxide (ami-25) as a brain contrast agent
โ Scribed by Thomas A. Kent; Michael J. Quast; Barry J. Kaplan; Robert S. Lifsey; Howard M. Eisenberg
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 441 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
We have applied a superparamagnetic iron oxide formulation (AMIโ25, Advanced Magnetics, Inc., Cambridge, MA) to image the cerebral vasculature. Contrastโenhanced images of normal anesthetized rats demonstrated excellent gray/white matter differentiation, consistent with known differences in blood perfusion, and cerebrospinal fluid spaces were clearly seen. Alterations in normal perfusion patterns due to barbiturate anesthesia and ischemia were clearly visible. We propose the use of this agent as an adjunct to MRI for the imaging of conditions with perfusion abnormalities. ยฉ 1990 Academic Press, Inc.
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