In part, the disclosure relates to intravascular data collections and generation of representations thereof include one or more view of regions associated with side branches or arteries such as a carina or bifurcation. In one embodiment, accessing a set of intravascular data stored in machine readable memory； performing side branch detection with regard to the intravascular data to identify one or more side branches； and identifying a plurality of frames for the one or more side branches is performed. An automatic viewing angle that is toggleable via a user interface is used in one embodiment.
