3D Modeling of Flows in Intracranial Bifurcating Arteries with Saccular Aneurysms
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چکیده
منابع مشابه
Saccular aneurysm formation in curved and bifurcating arteries.
BACKGROUND AND PURPOSE Distinguishing whether forces resulting from the impingement of central blood flow streams at a curved arterial segment or at the apex of an intracranial bifurcation could be important for the understanding of aneurysm formation. Using finite element models, our purpose was to investigate the hemodynamics related to intracranial saccular aneurysm formation through compute...
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Histopathological studies on the cerebral aneurysm in cerebrovascular moyamoya disease have been limited to only a few cases and the pathological details still remain obscure. Six moyamoya disease autopsy cases that satisfied the criteria of this disease proposed by Nishimoto in 1976 are studied. In addition to the routine neuropathological examination of the brains, detailed observa tion of th...
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The true cause of intracranial hemorrhage in moyamoya disease has not been clarified. Magnification cerebral angiograms were reviewed for seven patients. In four , small saccular aneurysms were seen arising from abnormally dilated collateral vessels or feeding arteries. This study suggests that aneurysms may be a source of hemorrhage in addition to the generally accepted rupture from abnormally...
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We investigate the flow dynamics and oscillatory behaviour of wall shear stress (WSS) vectors in intracranial aneurysms using high resolution numerical simulations. We analyse three representative patient-specific internal carotid arteries laden with aneurysms of different characteristics: (i) a wide-necked saccular aneurysm, (ii) a narrower-necked saccular aneurysm, and (iii) a case with two a...
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Intracranial arteriovenous malformations (AVMs) are congenital communications between the cerebral arteries and veins without an intervening capillary network. The association of the malformations with other vascular lesions such as intracranial aneurysms has previously been reported. We have reviewed 132 consecutive patients with intracranial AVMs evaluated angiographically at New England Medi...
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