Detecting subarachnoid hemorrhage: Comparison of combined FLAIR/SWI versus CT

Double Inversion Recovery MR Sequence for the Detection of Subacute Subarachnoid Hemorrhage

“…This similarity may explain why the interobserver agreement was significantly lower by using T2* and SWI compared with DIR. However, in agreement with previous studies, 19,20 T2* and SWI were particularly useful for detecting IVH, while FLAIR and DIR sequences failed to detect small amounts of intraventricular bleeding. Such findings may suggest that both SWI and DIR should be performed in patients with suspected SAH.…”

“…17 Previous studies have suggested that SWI could accurately detect small amounts of SAH and intraventricular hemorrhage (IVH). [18][19][20] A recent study focusing on the detection of microbleeds also demonstrated that SWI had a greater sensitivity for blood products than the conventional T2* sequence. 21 However, no study available compares the diagnostic performance of T2* and SWI for the detection of spontaneous SAH, to our knowledge.…”

Effects of iodinated contrast on various magnetic resonance imaging sequences and field strength: Implications for characterization of hemorrhagic transformation in acute stroke therapy

“…SE: Spin-echo suppression and T1-shortening (FLAIR has an intrinsic T1 contrast in addition to the well known T2 contrast effect) [12] . CNR values of ICM on FLAIR images were not the highest in our experiment.…”

Introduction of a Dedicated Emergency Department MR Imaging Scanner at the Barrow Neurological Institute

“…Fluid-attenuated inversion recovery sequences have been shown to be equivalent or better than CT for the detection of acute subarachnoid hemorrhage, 31 with increased sensitivity for acute and subacute hemorrhage with the addition of T2* sequences. 32,33 MR imaging has also been shown to be superior to CT in detecting diffuse axonal injury. [34][35][36] In acute spinal trauma, Morais et al 37 demonstrated that MR imaging is superior to CT for the detection of bone swelling, posterior ligamentous complex injury, disc herniation, cord compression, and cord swelling.…”