1. A system for imaging an artery contained in an arterial tree, the artery having an axis, comprising: a a microprocessor configured to aa generate a three-dimensional reconstruction of the arterial tree from two or more angiographic images of the arterial tree obtained from different perspectives; ab determine an orientation of the axis of the artery in the arterial tree; ac determine from the three-dimensional reconstruction of the arterial tree at least one perspective of the artery perpendicular to the axis of the artery; and ad generate a three dimensional reconstruction of the artery from angiographic images obtained essentially from the determined at least one perspective.