Magnetic resonance arteriography with dynamic intravenous contrast agents
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United States of America Patent
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May 23, 1995
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app pub date -
Jun 7, 1993
filing date -
Jun 7, 1993
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Abstract
This invention is a method of imaging arteries distinctly from veins using nuclear magnetic resonance imaging in combination with intravenous administration of an magnetic resonance contrast agent. The contrast agent is intravenously injected in such a way that the arterial contrast concentration is substantially higher than the venous and background tissue concentration for a sufficiently long period of time to acquire the magnetic resonance image. The injection site of the contrast agent is chosen such that it is in a vein which is remote from the artery of interest. The magnetic resonance contrast agent may be intravenously infused at a variable infusion rate.
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