Diagnostic Yield of Repeat Catheter Angiography in Patients With Catheter and Computed Tomography Angiography Negative Subarachnoid Hemorrhage

Neurosurgery, 05/10/2012

Repeat catheter angiography performed 7 days after presentation is valuable in the evaluation of patients with subarachnoid hemorrhage (SAH) who have negative initial catheter and CT angiograms, demonstrating a causative vascular abnormality in 4.2% of patients.

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