Arterial bifurcation and flow distribution

Arterial stenosis or occlusion display flow features predicted by the principles governing resistance and velocity only when the lesion is single, short in length and located at segments with no bifurcations. The brain attempts to compensate for arterial lesions by utilizing multiple bifurcations and regulatory mechanisms that redistribute flow around the obstruction. To bring the flow around the lesion, the brain vessels neighboring the obstruction dilate to create a pressure gradient between...