Internal capsule | Radiology Reference Article - Radiopaedia.org
Aug 20, 2024 · The blood supply of the internal capsule is variable but is commonly from small perforating branches of the middle cerebral artery and anterior cerebral artery. These include the lateral lenticulostriate arteries and the recurrent artery of Heubner respectively 3 .
Brain arterial vascular territories | Radiology Reference Article ...
Nov 13, 2024 · They supply the anterior inferior parts of the basal nuclei and the anterior limb of the internal capsule. Heubner's artery is the largest of the medial lenticulostriate arteries and supplies the anteromedial part of the head of the caudate and anterior inferior internal capsule.
External capsule | Radiology Reference Article - Radiopaedia.org
Apr 11, 2023 · The external capsule is a series of white matter tracts in the brain situated between the putamen and claustrum. It is composed of claustrocortical fibers dorsally and the combined mass of the uncinate fasciculus and inferior frontal occipital fasciculus ventrally.
Caudate nucleus | Radiology Reference Article - Radiopaedia.org
May 18, 2024 · The tail of the caudate nucleus terminates immediately above the temporal horn of the ventricle. It is bound laterally by the anterior crus of the internal capsule. Arterial supply. The head of the caudate nucleus is supplied by the recurrent artery of Heubner, a small branch from the A2 (sometimes the A1) segment of the anterior cerebral artery.
Thalamus | Radiology Reference Article | Radiopaedia.org
Jan 11, 2024 · Arterial supply. The thalamus is chiefly supplied by small perforating end-arteries arising from the posterior cerebral artery. The thalamus has four vascular territories 1-3: anterior (or tuberothalamic): supplied by thalamotuberal (or polar) arteries which are branches of the posterior communicating artery
Middle cerebral artery | Radiology Reference Article
Jun 7, 2024 · In addition, the middle cerebral arteries supply part of the internal capsule and basal ganglia. The superior division M2 supplies the lateral inferior frontal lobe, which on the dominant (usually left) hemisphere includes the Broca area.
Basal ganglionic infarction | Radiology Case - Radiopaedia.org
The basal ganglia receive their blood supply from the medial and lateral lenticulostriate arteries. While the former is a branch from the ACA that supplies the anteromedial head of caudate and anterior limb of the internal capsule, the latter is a branch from the MCA and supplies the putamen, head of caudate and posterior limb of the internal ...
Anterior choroidal artery | Radiology Reference Article
Nov 13, 2024 · The AChA originates from the posterior wall of the internal carotid artery (ICA) between the origin of the posterior communicating artery (PCOM) (which is 2-5 mm proximal to the AChA) and the internal carotid termination (which is 2-5 mm distal to the AChA). It measures ~1 mm in diameter.
Blood supply of the meninges | Radiology Reference Article ...
Aug 27, 2019 · The blood supply of the meninges generally concerns the blood supply of the outer layer of dura mater rather than the inner layer of dura mater, arachnoid or pia mater which do not require a large blood supply.
Posterior cerebral circulation | Radiology Reference Article ...
Jan 8, 2023 · The posterior cerebral circulation (or simply, posterior circulation) is the blood supply to the posterior portion of the brain, including the occipital lobes, cerebellum and brainstem. Due to the anastomotic circle of Willis, the posterior circulation connects via the posterior communicating arteries to the anterior circulation.
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