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Abstract #0941

Identification of Traumatic Subarachnoid Hemorrhage Using Susceptibility Weighted Imaging

Jing Lei1, Zhen Wu2, Meili Liu1, Tong Han1, Ewart Mark Haacke2,3

1Radiology, Tianjin Huanhu Hospital, Tianjin, China; 2Biomedical Engineering, McMaster University, Hamilton, On, Canada; 3Radiology, Wayne State University, Detroit, MI, USA

Subarachnoid hemorrhage (SAH) is related to poor outcome in traumatic brain injury (TBI). Susceptibility weighted imaging (SWI) has been successfully applied in TBI and proved to be very sensitive to hemorrhage. This study compared CT, FLAIR and SWI in 20 TBI patients with SAH. The results showed SWI is sensitive to small amount of SAH located within the sulci and better than CT in detecting intra-ventricle hemorrhage. The aliasing effect on phase images helps to differentiate SAH from veins. But SWI is not as good as CT in detecting basilar cistern SAH.