1. A method for providing patient-specific blood flow information using at least one computer system, the at least one computer system including a display, the method comprising: displaying, on the display, a geometric model generated based on patient-specific data, the geometric model representing at least a portion of an anatomical structure of the patient; receiving a first gesture relating to a first location on the display indicated by a user, the first gesture indicating a potential treatment of the anatomical structure and initiating a modification of the geometric model at a location of the geometric model corresponding to the first location on the display; displaying, on the display, at least one blood flow characteristic value at the first location of the geometric model indicated by the first gesture; and dynamically updating the display of the at least one blood flow characteristic value as a user moves in relation to and in sensed proximity to the display, the updating causing the computer system to update the display of the potential treatment and update the displayed at least one blood flow characteristic value based upon further modification of the geometric model.