T1 FLAIR

A FLAIR pulse sequence consists of an initial 180° inversion pulse prior to the 90° excitation pulse. With T1 FLAIR, the TI is based on the desired T1 contrast. The TR must be sufficiently long enough to allow for the spins to return to their equilibrium state.

Use T1 FLAIR with the following PSDs :

• Scan selections: 2D Mode, FSE-XL pulse, T1 FLAIR Imaging Option.
  • It is designed to scan the same number of slices as the T1-weighted Spin Echo sequence, and in the same or shorter scan time, achieve better tissue contrast-to-noise as well as signal-to-noise ratios.
  • It is typically used to acquire T1-weighted image contrast for head exams on patients with uncontrollable motion and for free-breathing liver images for patients with an irregular breathing pattern.