Fluid Attenuated Inversion Recovery

**Semantic type:** Diagnostic Procedure

**Definition:** A magnetic resonance imaging (MRI) pulse sequence that uses an inversion recovery technique to null fluids present in the imaging area, improving clarity of the object of interest.

**Synonyms:** - FLAIR - FLAIR MRI - FLAIR MRI - FLAIR MRI - FLUID ATTENUATED INVERSION RECOVERY MRI - Fluid Attenuated Inversion Recovery MRI - MRI FLAIR