Diagnostic Yield of Cerebral Angiography in Patients With Computed Tomography-Negative, Lumbar Puncture-Positive Subarachnoid Hemorrhage

Abstract

The diagnostic yield of cerebral angiography is high (45.7%) in patients with CT-/LP+ SAH. Higher red blood cell counts were noted in patients with cerebral aneurysms but no clinical or laboratory parameter can reliably predict the presence of a vascular anomaly. Thus, it is reasonable to perform cerebral angiography in all patients with CT-/LP+ SAH.