signal containing the information shown on licu display 70 a to cms 20 a which in turn displays this video signal in a pip picture in picture area of the cms display 80 a those persons reasonably skilled in the art of video processing are familiar with techniques for displaying one video image over an area of a second video image a simplified approach is to provide a second display monitor as part of cms 20 a and dedicate this monitor exclusively to display licu supplied information alternatively licu system 10 a provides a 3 d data set that includes the x y z locations corresponding to the licu displayed information this 3 d data is sent to cms 20 a where it is combined with cms 3 d data and presented on display 80 a to make use of a single integrated display of the two sets of 3 d data the two sets of data need to be scaled and aligned in one approach the licu system 10 a moves the catheter distal end 60 to multiple at least three distinct locations in three space as reference points at each reference point the licu system 1 a captures that 3 d location and informs the cms 20 a to likewise capture the corresponding 3 d location these reference data points provide sufficient information for the cms 2 a to scale and align complete licu 3 d data sets with the cms 3 d data sets then the two 3 d data sets can be combined and presented on display 80 a those reasonably skilled in the art.