Other Etiologies of Carotid Artery Disease
Giant cell arteritis is a common form of systemic vasculopathy affecting patients older than 50 years. Although it typically involves the temporal, maxillary, and ophthalmic arteries, it can rarely affect…
Common Sites of Cerebrovascular Occlusive Disease
Atherosclerosis causes stenosis or occlusion of extracranial and intracranial arteries and is directly responsible for a significant percentage of cerebral ischemic events. Atheroma formation involves the progressive deposition of circulating…
Clinical Evaluation and Therapeutic Options in Stroke (Continued)
CT is readily available in most hospitals and reliably demonstrates the presence or absence of intracerebral hemorrhage. Immediately after the onset of bleeding, intracerebral hematomas (ICHs) are seen on CT…
Clinical Evaluation and Therapeutic Options in Stroke
Timing and Evolution In intracerebral hemorrhage patients, symptoms and signs gradually develop over minutes or hours. Improvements and fluctuations do not occur during this time. In aneurysmal subarachnoid hemorrhage, symptoms…
Temporal Profile of Transient Ischemic Attack (TIA) and Completed Infarction (CI)
Subarachnoid hemorrhages are usually caused by rupture of an aneurysm that breaks, spilling blood instantly into the spinal fluid. The sudden release of blood under arterial pressure increases intracranial pressure,…
Arteries Of Brain: Frontal View and Section
The proximal interhemispheric portions of the anterior cerebral arteries have medial orbitofrontal branches that travel anteriorly along the gyrus rectus to supply the medial part of the orbital gyri and…
Stroke Subtypes
The accessory meningeal artery may also arise from the maxillary artery or from the middle meningeal artery. It ascends through the foramen ovale to supply the trigeminal ganglion and the…
Arteries of Brain: Lateral and Medial Views
Branches that supply the midbrain and thalamus arise from the proximal peduncular and ambient segments. Paramedian mesencephalic arteries arise from the first 3 to 7 mm of the arteries. The…
Territories of the Cerebral Arteries
The ECAs have two branches that supply the face and can provide collateral blood flow to the ICA system: the facial arteries, which course along the cheek toward the nasal…
Arteries to Brain and Meninges
Internal Carotid Artery The internal carotid arteries (ICAs) ascend vertically in the neck, posterior and slightly medial to the external carotid artery. These arteries are positioned medial to the sternocleidomastoid…
