cerebral vein


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cerebral vein

Any of the veins draining the brain. Cerebral veins differ from veins outside the skull in that (1) cerebral veins do not run with cerebral arteries; (2) cerebral veins do not have valves; and (3) walls of cerebral veins contain no muscle.

The venous circulation of the brain begins with venules that run from inside the brain to the surface where they bend 90° and run along the surface inside the pia mater. Anastomosing venous plexuses collect in the pia to form the cerebral veins, which eventually cross the subarachnoid space and empty into dural sinuses. The dural sinuses interconnect and eventually empty into the internal jugular veins.

See: dural sinus
See also: vein
References in periodicals archive ?
Early Seizures in Cerebral Vein and Dural Sinus Thrombosis Risk Factors and Role of Antiepileptics.
The cause of predilection of cerebral veins and dural sinuses is also obscure.
Evidence and clinical judgment: Treatment of cerebral vein thrombosis.
The ISCVT (International Study on Cerebral Vein and Dural Sinus Thrombosis) was a multinational, multicentre, prospective study with 624 patients with a mean age of 37.
However, in the International Study on Cerebral Vein and Dural Sinus Thrombosis, only 2.
2) Anatomically the vein of Galen is the deep cerebral vein formed posterior to the pineal gland by joining of the two internal cerebral veins.
A cerebral vein congestion, as a result of a dural arteriovenous fistula in the posterior cranial fossa, was reported to be the cause of bithalamic lesion only in one case.
A study done by Ida Martinelli et al (9) shows that hyperhomocysteinemia increases the risk of cerebral vein thrombosis by approximately 4-fold.
In addition to these characteristic features, other findings may include: spinal meningeal diverticula, collapsed superior ophthalmic vein, reduction in the angle of vein of Galen and internal cerebral vein (the venous hinge sign).
In the mural type, direct AV fistulae open on the wall of the internal cerebral vein.
Different parameters, including time-to-peak (TTP; the time that elapses between the start of an IV contrast injection and the maximal attenuation of contrast-enhanced blood as it passes through a defined region of the brain), MTT (which can be oversimplified to be considered the time it takes blood to flow from a major cerebral artery feeding a given region of the brain to the major cerebral vein draining that region), CBV (the volume of blood in a defined portion of the brain at any given time), and CBF (cerebral blood volume/min) can be measured or calculated.

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