| Aneurysm A localized, pathological, blood filled dilation of a blood vessel.
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Angiogram An x-ray of one or more blood vessels produced by Angiography and used in
diagnosing pathological conditions of the cardiovascular system.
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Angiography Examination of the blood vessels using x-rays following the injection of a
radiopaque substance.
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Asymptomatic Exhibiting or producing no symptoms.
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Catheter A hollow flexible tube that can be inserted into a body cavity, duct, or vessel.
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Cat Scanner A device that produces cross sectional views of an internal body structure
using computerized axial tomography.
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Congenital Existing at birth.
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Embolization A technique to stop or prevent hemorrhage by introducing a foreign
mass, such as an air-filled membrane (balloon), into a blood vessel to block the flow of blood.
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Ligate To tie or bind with a ligature.
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Ligature A thread, wire, or cord used in surgery to close vessels or tie off ducts.
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Magnetic Resonance Imaging or MRI The use of a nuclear magnetic resonance spectrometer
tp produce electronic images of specific atoms and molecular structures in solids, especially humman tissues.
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Rupture To burst or break open
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Shunt A passage created surgically to divert or permit flow from one pathway or region to
another; a bypass.
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Subarachnoid hemorrhage or (SAH) Loss of blood into the subarachnoid space, the
fluid-filled area that surrounds the brain tissue. In other words, what happens when an aneurysm
ruptures.
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Vasospasm Narrowing of a blood vessel caused by a spasm of the smooth muscle of the
vessel wall.
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