T2 FLAIR artifacts at 3-T brain magnetic resonance imaging

Clin Imaging. 2014 Mar-Apr;38(2):85-90. doi: 10.1016/j.clinimag.2013.10.004. Epub 2013 Nov 7.


The purpose of this retrospective clinical study was to identify and evaluate the presence and frequency of T2 FLAIR artifacts on brain MRI studies performed at 3 T. We reviewed axial T2 FLAIR images in 200 consecutive unremarkable brain MRI studies performed at 3 T. All studies were reviewed for the presence of artifacts caused by pulsatile CSF flow, magnetic susceptibility and no nulling of the CSF signal. T2 FLAIR images introduce several artifacts that may degrade image quality and mimic pathology. Knowledge of these artifacts and increased severity and frequency at 3 T is of particular importance in avoiding a misdiagnosis.

Keywords: Artifacts; Brain; MRI; T2 flair.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Artifacts
  • Brain / pathology
  • Cerebrospinal Fluid
  • Female
  • Humans
  • Image Processing, Computer-Assisted / methods*
  • Magnetic Resonance Imaging*
  • Male
  • Middle Aged
  • Pulsatile Flow
  • Retrospective Studies
  • Signal-To-Noise Ratio
  • Young Adult