NMR Relaxivities of Paramagnetic Lanthanide-Containing Polyoxometalates.

ABSTRACT: The current trend for ultra-high-field magnetic resonance imaging (MRI) technologies opens up new routes in clinical diagnostic imaging as well as in material imaging applications. MRI selectivity is further improved by using contrast agents (CAs), which enhance the image contrast and improve specificity by the paramagnetic relaxation enhancement (PRE) mechanism. Generally, the efficacy of a CA at a given magnetic field is measured by its longitudinal and transverse relaxivities r₁ and r₂, i.e., the longitudinal and transverse relaxation rates T₁^-1 and T₂^-1 normalized to CA concentration. However, even though basic NMR sensitivity and resolution become better in stronger fields, r₁

SUBMITTER: Venu AC 

PROVIDER: S-EPMC8703889 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature