| 摘要 |
PURPOSE: A method of contrast enhanced MR anglography of the human or non-human animal body is provided. CONSTITUTION: This method comprises administering into the vasculature a contrast effective amount of a contrast agent composition which comprises magnetic particles having a r2/r1 ratio of no more than 5, and at a time when sufficient of the above magnetic particles remain in the vasculature to provide positive contrast enhancement thereof in a T1-weighted image while sufficient magnetic particles have been taken up into an organ of the reticuloendothelial system to provide negative contrast enhancement thereof in the above T1-weighted image, generating a T1-weighted image magnetic resonance image of at least the above organ.
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