Subarachnoid hemorrhage other imaging findings

Subarachnoid Hemorrhage Microchapters
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AHA/ASA Guidelines for the Management of Aneurysmal Subarachnoid Hemorrhage (2012) Risk Factors/Prevention Natural History/Outcome Clinical Manifestations/Diagnosis Medical Measures to Prevent Rebleeding Surgical and Endovascular Methods Hospital Characteristics/Systems of Care Anesthetic Management Cerebral Vasospasm and DCI Hydrocephalus Seizures Associated With aSAH Medical Complications
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sara Mehrsefat, M.D. [2]

Other imaging findings

Once a subarachnoid hemorrhage is confirmed, the next question is about its origin. CT angiography (using radiocontrast) to identify aneurysms is generally the first step, as invasive angiography (injecting radiocontrast through a catheter advanced to the brain arteries) has a small rate of complications but is useful if there are plans to obliterate the source of bleeding, such as an aneurysm, at the same time.