Practical Reviews

Can DSA Be Excluded if CTA Is Negative in Acute SAH?

Objective: To determine if CT angiography (CTA) can reliably exclude an aneurysm in patients presenting with acute subarachnoid hemorrhage (SAH). Participants/Methods: 193 patients who presented with acute SAH and negative CTA on a 64-section CT scanner were included. CTA results were interpreted by the neuroradiologist prior to digital subtraction angiography (DSA). There were 4 groups: (1) perimesencephalic hemorrhage (PMH); (2) diffuse aneurysmal pattern; (3) positive lumbar pun more...
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