User interface for connecting model structures and associated systems and methods

A non-transitory, computer-readable medium storing instructions thereon that, when executed by one or more processors of a computing system, cause the computing system to perform operations comprising:

• outputting a graphical user interface including:
• a three-dimensional (3D) model of an anatomic region of a patient, wherein the 3D model includes a set of linked structures and at least one isolated structure spaced apart from the linked structures, and
• a plurality of two-dimensional (2D) images of the anatomic region of the patient;
• receiving, via the graphical user interface, operator input indicating a set of locations in one or more of the 3D model or the 2D images, the set of locations representing a connection between the at least one isolated structure and the linked structures, wherein at least one location of the set of locations identifies at least one linked structure of the set of linked structures;
• and
• updating the 3D model, based on the operator input, to include a bridge structure connecting the at least one isolated structure to the linked structures.