4 patients with aneurysms of different size and location were examined by cerebral angiography, computed tomography, angio-computed tomography, magnetic resonance imaging and angiography, in order to demonstrate haemodynamic and morphological aspects of cerebral aneurysms. Turbulent flow within aneurysms could be shown by cerebral angiography and magnetic resonance angiography. In contrast MRI or computed tomography are necessary to visualize additional thrombosed parts. MRI is the method of choice to reflect the formation of thrombus, CT to show possible calcifications.
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