A system for controlling a treatment device generates a graphical interface that visually prompts a user in a step-wise fashion to use the treatment device to perform a process of forming a pattern of lesions that extends both circumferentially and axially in different levels in a body region. The graphical interface displays for the user a visual record of the progress of the process from start to finish and guides the user so that so that individual lesions desired within a given level are all formed, and that a given level of lesions is not skipped.
