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, wherein the plurality of branches can be concurrently presented within a display window in at least one mode, wherein the at least one mode includes: (i) a local rotation mode in which each branch of the curved tubular tree structure is disjointed from the curved tubular tree structure at a corresponding bifurcation and is independently rotatable with respect to the other disjointed branches about a corresponding axis; and (ii) a slab mode in which a slab having a user-defined and adjustable thickness is superimposed over transverse view and sagittal view of the curved tubular tree structure, the slab defining the data that is presented in a coronal view of the curved tubular tree structure.