Widening and High Inclination of the Middle Cerebral Artery Bifurcation Are Associated With Presence of Aneurysms

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Widening and high inclination of the middle cerebral artery bifurcation are associated with presence of aneurysms.

BACKGROUND AND PURPOSE The middle cerebral artery (MCA) bifurcation is a preferred site for aneurysm formation. Wider bifurcation angles have been correlated with increased risk of aneurysm formation. We hypothesized a link between the presence of MCA aneurysms and the angle morphology of the bifurcation. METHODS Three-dimensional rotational angiography volumes of 146 MCA bifurcations (62 ane...

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A New Classification Of Unruptured Middle Cerebral Artery Bifurcation Aneurysms

MCA aneurysms comprise 20% to 25% of intracranial aneurysms.Majority of middle cerebral artery aneurysms are treated with microsurgical clipping. Most of the classifications are based on size, location or pathology which are effective for description but are less useful in preoperative planning and also in deciding the technique or type of clip application. The aim of our study was to study the...

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The transsylvian approach to middle cerebral artery bifurcation/trifurcation aneurysms.

A transsylvian approach to treat aneurysms located at the bifurcation/trifurcation of the middle cerebral artery (MCA) is described. This surgical route traces a distal MCA branch retrogradely into the Sylvian fissure whereupon a secondary MCA branch and the main stem of the MCA (M1) are identified before aneurysm clipping. The advantages, and disadvantages of this approach are discussed. The t...

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Fenestrations of the middle cerebral artery associated with aneurysms.

A present. Computed tomography (CT) demostrated an intracerebral hematoma in the right temporal lobe, and right carotid angiography showed an aneurysm arising from the bifurcation of the right MCA and a fenestration at the origin of the same MCA (fig. 1). At surgery marked arteriosclerosis in the vicinity of the aneurysm was found . The aneurysm was clipped at its neck. The fenestrated artery a...

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Accessory middle cerebral artery associated with two intracranial aneurysms

Objective and importance: albeit very likely underdisclosed, duplication of the middle cerebral artery (MCA) is a rather unfrequently recognized angiographic finding. In this instance the anomaly was associated with two intracranial aneurysms, one ruptured. Clinical presentation: an anomalous, twin-like MCA, departing from a dominant left pre-communicating anterior cerebral artery and extending...

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ژورنال

عنوان ژورنال: Stroke

سال: 2014

ISSN: 0039-2499,1524-4628

DOI: 10.1161/strokeaha.114.005393