Detection and Treatment Guide Updated 2017 Detection-and-Treatment-2017 | Page 26

Hydrocephalus
A condition in which too much fluid builds up within the fluid-filled spaces inside
the brain (ventricles), putting pressure on the brain tissue. This may occur after
aneurysm rupture.
Microcatheter
A very narrow catheter used to deliver devices and agents in the endovascular
treatment of cerebral aneurysms.
MRI
Short for magnetic resonance imaging. MRI is a painless, non-invasive procedure
that uses radio waves and a powerful magnetic field to produce detailed images
of the brain and other parts of the body.
MRA
Short for magnetic resonance angiography. MRA is a painless, non-invasive
procedure that uses radio waves and a powerful magnetic field to produce
detailed images of blood vessels. Sometimes an injected contrast dye is used.
Parent artery
The artery in the brain on which the aneurysm has formed.
Saccular aneurysm
The most common type of brain aneurysm. Saccular aneurysms have a “neck”
that connects the aneurysm to the parent artery and a larger, rounded area
called the dome. Also called “berry” aneurysms.
Stent
A tubular device made of wire mesh that is used in the endovascular treatment
of aneurysms. Also called an intracranial stent.
Stroke
A disability caused by injury to the brain. Most strokes are caused by loss of blood
flow to a portion of the brain (called an ischemic stroke or cerebral infarction) or by
injury related to bleeding within the brain tissue (an intracerebral hemorrhage) or
into the space around the brain (subarachnoid hemorrhage).
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