A brief overview of ICA anatomy. The ICA in the neck (cervical ICA) extends from carotid bifurcation to skull base. It then goes through the petrous bone of the skull base (petrous segment), and turns up within the foramen lacerum, existing the bone.

2025年2月26日 · The internal carotid artery (ICA) is one of the two terminal branches of the common carotid artery (CCA) which supplies the intracranial structures. The other terminal branch is the external carotid artery (ECA), which is somewhat larger in caliber than the ICA, and gives off several branches to supply structures within the neck, extracranial ...

ICA in Neurology commonly refers to the Internal Carotid Artery, a major blood vessel that supplies blood to the brain, face, and neck, playing a critical role in cerebrovascular health. Additionally, ICA can also denote International Cooperative Association, an organization that promotes cooperative businesses worldwide.

ICA occlusion can produce brain or retinal ischaemia by the following mechanisms: Embolism from the distal or proximal stump or from atherosclerotic plaques in the common carotid artery or ECA, which traverse through the collateral pathways involving the ECA.

The Left Internal Carotid Artery (ICA) plays a crucial role in the supply of blood to the brain through the process of cerebral circulation. This intricate connection between the Left ICA and the brain is essential for maintaining optimal brain function by ensuring a …

ICA occlusion in the absence of adequate collateral circulation may cause a massive infarct. This result has been well described following therapeutic occlu-sion of the ICA or common carotid artery for a variety of intracranial disorders. Some patients with chronic ICA occlusion are vulnerable to sudden drops in mean arterial blood pressure ...

With advances in radiological and microsurgical techniques over the past few years, the treatment of intracavernous ICA aneurysms has evolved from simple ligation of the ICA in the neck 3,18,37,38,40,41,44-46 to more refined procedures, including endo vascular (detachable balloon or coil embolization) 23,60 or surgical therapies (direct ...

2025年1月24日 · The internal carotid artery (ICA) is a major artery that supplies oxygenated blood to the brain, eyes, and parts of the face. It is one of the two terminal branches of the common carotid artery, the other being the external carotid artery.

Background Spontaneous intracranial internal carotid artery (ICA) dissection is an uncommon cause of cerebral infarction, particularly when compared with the dissection of the ICA's cervical portion. Most reports describe extensive strokes with very high mortality rates.

This article reviews the current concepts in intracranial atherosclerotic disease (ICAD) as a common etiology of ischemic stroke; pathophysiologic mechanisms of ischemic stroke; diagnostic evaluation; and therapeutic modalities, including maximal medical therapy (MMT), percutaneous transluminal angioplasty and stenting (PTAS), and bypass surgery.