1. A visualization system, comprising: a first component that processes volumetric image data indicative of a curved tubular tree structure having a plurality of branches so that the plurality of branches can be concurrently presented within a display window, wherein the volumetric image data is generated from x-ray projections acquired by a medical imaging system; and a second component that concurrently presents the processed data to display the plurality of branches in a first display window and a region of interest identified on one of the branches in a second display window to present the region of interest in a spatial orientation different then that of the plurality of branches.