middle cerebral artery


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Related to middle cerebral artery: anterior cerebral artery, posterior cerebral artery

mid·dle ce·re·bral ar·ter·y

[TA]
one of the two large terminal branches (with anterior cerebral artery) of the internal carotid artery; it passes laterally around the pole of the temporal lobe, then posteriorly in the depth of the lateral cerebral fissure; for descriptive purposes it is divided into three parts: 1) the sphenoidal part (M1 segment of clinical terminology), supplying perforating branches to the internal capsule, thalamus, and striate body; 2) the insular part, supplying branches to the insula and adjacent cortical areas; and 3) the terminal part or cortical part, supplying a large part of the central cortical convexity (the latter two collectively forming M2 segment).
Synonym(s): arteria cerebri media [TA]

middle cerebral artery

the largest of the cerebral arteries and the vessel most commonly affected by cerebrovascular accident.

mid·dle ce·re·bral ar·te·ry

(mid'el ser'ĕ-brăl ahr'tĕr-ē) [TA]
One of the two large terminal branches (with the anterior cerebral artery) of the internal carotid artery; it passes laterally around the pole of the temporal lobe, then posteriorly in the depth of the lateral cerebral fissure.
Synonym(s): arteria cerebri media.

middle cerebral artery

Abbreviation: MCA
The continuation of the internal carotid artery beyond the circle of Willis. It runs along the lateral (Sylvian) fissure between the frontal and temporal lobes. Branches of the middle cerebral artery supply blood to the frontal, orbital, parietal, and temporal lobes of the brain. Strokes involving the middle cerebral artery often result in sensory deficits and muscle weakness on the contralateral side of the body; when a middle cerebral artery stroke is in the dominant side of the brain, the patient can also have aphasia.
See: brain (Major arteries of the brain) and circle of Willis for illus.
See also: artery
References in periodicals archive ?
05 insignificant, S/D: Systolic/diastolic ratio, PI: Pulsatility index, RI: Residence index, MCA: Middle cerebral artery
Middle cerebral artery (MCA) susceptibility sign at susceptibility-based perfusion MR imaging: Clinical importance and comparison with hyperdense MCA sign at CT.
Bartkowski, "Rat middle cerebral artery occlusion: evaluation of the model and development of a neurologic examination," Stroke, vol.
et all, 1996, 'Malignant' Middle Cerebral Artery Territory Infarction, Clinical Course and Prognostic Signs, Arch Neurol.
Endovascular treatment of middle cerebral artery aneurysms as first option: a single center experience of 92 aneurysms.
These properties are advantageous for vascular reconstruction, indicating that the fetal umbilical vein can be transplanted to repair middle cerebral artery injury.
The stump of an occluded middle cerebral artery (MCA) is a rare but important aneurysm mimic.
In one case where PCA was bilaterally absent, middle cerebral artery on the left side was having two roots while arising from the ipsilateral ICA.
A group of German neuroradiologists and a neurologist presents eight chapters on internal carotid artery occlusion, middle cerebral artery occlusion, vertebrobasilar occlusion, dissections, cerebral venous and sinus thrombosis, thrombolysis, mechanical recanalization materials, and treatment concepts and results, with information on anatomy, imaging studies, etiology, symptoms, epidemiology, risk factors, complications, techniques, cases, and other aspects.
7%), DSA revealed an aneurysm of the middle cerebral artery, in two patients (3.
Hence, when it was realized that elevated values of fetal Middle Cerebral Artery Peak Systolic Velocities (MCA-PSV) can indicate fetal anemia, this test soon became popular as it is non-invasive in nature and is now increasingly used globally.