Asymptomatic stenosis of intracranial or extracranial artery
Definition
This section includes cerebrovascular disease/abnormalities/vascular or neuroimaging findings that has not caused acute cerebral symptoms. Such findings should not be regarded as simply incidental findings; asymptomatic stenosis or occlusion of the intracranial or extracranial arteries to the brain are associated with an increased risk of future cardiovascular events that may be prevented from risk factor management and in selected cases surgical or endovascular procedures (1) “Precerebral” have been changed to “extracranial” as the latter term is the one generally used in the literature. Arteries to the brain are divided into intracranial and extracranial. The carotid siphon is included in the “intracranial” part of the carotid artery as the major part of the carotid siphon is located distal to the dural passage of the artery.
Inclusions
narrowing of basilar, carotid or vertebral arteries, not resulting in cerebral infarction
Arteriosclerotic disease of extracranial portion of vertebral arteryArteriosclerotic disease of intracranial portion of vertebral arteryAsymptomatic stenosis of anterior cerebral arteryAsymptomatic stenosis of basilar arteryAsymptomatic stenosis of certain specified intracranial or extracranial arteryAsymptomatic stenosis of extracranial carotid arteryAsymptomatic stenosis of extracranial vertebral arteryAsymptomatic stenosis of intracranial carotid arteryAsymptomatic stenosis of intracranial or extracranial arteryAsymptomatic stenosis of intracranial vertebral arteryAsymptomatic stenosis of middle cerebral arteryAsymptomatic stenosis of posterior cerebral arteryAtheroma of extracranial portion of vertebral arteryAtheroma of intracranial portion of vertebral arteryAtherosclerosis of extracranial portion of carotid arteryAtherosclerosis of intracranial portion of carotid arteryCerebral atherosclerosisVertebral arterial arteriosclerotic diseasearteriosclerotic brain diseasearteriosclerotic cerebral ischaemiaarteriosclerotic cerebrovascular disorderatherosclerotic brain diseaseatherosclerotic cerebrovascular diseasecerebral arteriosclerosiscerebrovascular atheromatous diseasecerebrovascular atherosclerosisinternal auditory artery embolismnarrowing of basilar, carotid or vertebral arteries, not resulting in cerebral infarctionpartial obstruction of basilar, carotid or vertebral arteries, not resulting in cerebral infarctionstenosis of carotid artery NOSstenosis of internal carotid artery NOSstenosis of precerebral arteries, not resulting in cerebral infarction