<prompt> Which MRI sequence is used to detect brain edema?T1WIFLAIRSWIDWI  <response>: FLAIR stands for Fluid Attenuation Inversion Recovery Sequence This sequence is similar to T2 with suppression of CSFFluid signal so the Brain Edema can be seen better. Figure: FLAIR image showing edema in bilateral occipital lobe in a case of PRESposterior reversible encephalopathy syndrome. 