Some contrast agents in oilwell logging and in medical MRI
- 1 April 1993
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Medicine
- Vol. 29 (4) , 551-552
- https://doi.org/10.1002/mrm.1910290419
Abstract
Magnetite particles and paramagnetic ion chelates are used as contrast agents in both nuclear magnetism logging of oilwells and in medical MRI. An analytic expression for reduction of T2 for free precession signal decay (or gradient echoes) by magnetite particles does not depend on diffusion and agrees with published Monte Carlo computations.Keywords
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