Gadolinium-Chelate

**Semantic type:** Indicator, Reagent, or Diagnostic Aid

**Definition:** A coordination complex consisting of a gadolinium ion bound to a hexadentate organic chelating agent such as diethylenetriaminepentaacetic acid. Chelates of gadolinium are frequently utilized as magnetic resonance imaging (MRI) contrast agents and can be used to track nanoparticle-mediated drug delivery.

**Synonyms:** - Gadolinium Coordination Complex - Gadolinium-Chelant Complex - Gadolinium-based Contrast Agent