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Figure 1

From: Intracranial extravasation of contrast medium during diagnostic CT angiography in the initial evaluation of subarachnoid hemorrhage: report of 16 cases and review of the literature

Figure 1

Flow chart showing diagnostic and therapeutic procedures used in 356 cases of non-traumatic subarachnoid hemorrhage (SAH). Abbreviations: WFNS, World federation of neurosurgical societies; ROSC, Return of spontaneous circulation; 3D-CTA, 3 dimensional-computed tomography angiography; DSA, Digital subtraction angiography; IVR, Interventional radiology.

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