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[Contrast agents in magnetic resonance imaging].

William R. Couet, Didier Revel, Devissaguet Jp, George E. Wesbey, R C Brasch

Abstract

The origin of nuclear magnetic resonance signal is reminded in this paper. Different ways of increasing the contrast in magnetic resonance imaging are presented, especially modifications of tissues relaxation times by the use of paramagnetic ions or nitroxides. The potential of these substances is illustrated by several examples of application in the animal.

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Available abstract

Key concepts: Magnetic resonance imaging, Nuclear magnetic resonance, Contrast (vision), Relaxation (psychology), Paramagnetism, Physics of magnetic resonance imaging, Medicine, Spin echo