Emergency Radiology

, 16:441 | Cite as

CT evaluation of subarachnoid hemorrhage: a practical review for the radiologist interpreting emergency room studies

  • James M. Provenzale
  • Lotfi Hacein-Bey
Review Article


Radiologists working in an emergency radiology setting frequently interpret computed tomography (CT) studies of patients with suspected subarachnoid hemorrhage (SAH). This article reviews the sensitivity of CT for detection of SAH, some major patterns of SAH related to a ruptured aneurysm, and the differential diagnosis of SAH not due to aneurysmal rupture.


Subarachnoid Hemorrhage Computed tomography Aneurysm Perimesencephalic 


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Copyright information

© Am Soc Emergency Radiol 2009

Authors and Affiliations

  1. 1.Duke University Medical Center and Emory University School of MedicineDurhamUSA
  2. 2.Radiological Associates of Sacramento Medical Group, Inc.SacramentoUSA

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