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Diagnosis of Brain Aneurysms

If your doctor thinks you may have a brain aneurysm, a diagnostic test may be performed to confirm the presence of an aneurysm followed by an angiogram, if confirmed. If your doctor thinks you may have a ruptured aneurysm, a head CT scan should be done immediately with a lumbar spinal tap, if needed. The following procedures may be used for the diagnosis of brain aneurysms.

CT Scan

Creates an image of the brain showing whether blood has leaked around or into the brain; may also be accompanied by angiography for an enhanced view using contrast dye

Spinal Tap

Removes a portion of cerebrospinal fluid (CSF) from the spine to show if blood has leaked into the CSF


Guides catheter from groin to neck releasing contrast dye into the brain revealing size, shape and location of an aneurysm

Learn more about the various brain aneurysm treatment options available.