System and method of recording and displaying in context of an image a location of at least one point-of-interest in a body during an intra-body medical procedure

A method for navigating a catheter to a point of interest located in a body cavity within a living body, the method comprising:

• (a) providing a position measuring system including a plurality of position sensor elements, said position measuring system measuring a position of each of said plurality of position sensor elements within a three dimensional frame of reference;
• (b) providing a flexible, steerable catheter, at least one of said position sensor elements being located near a distal tip of the catheter in a configuration sufficient to provide measurement of location and angular position of said distal tip relative to the three-dimensional frame of reference;
• (c) attaching at least one of said position sensor elements to the living body in a configuration sufficient to provide measurement of location and angular position of the living body relative to the three-dimensional frame of reference;
• (d) designating the location of at least one point of interest relative to the three-dimensional frame of reference;
• (e) navigating the catheter into the living body;
• (f) monitoring by use of said position measuring system the positions of both the distal tip of said catheter and the living body;
• (g) displaying a two-dimensional image including a representation of the distal tip of said catheter and a representation of said at least one point of interest;
• and
• (h) adjusting the image so that the image remains indicative of a geometrical relation between the distal tip of said catheter and said at least one point-of interest when both said distal tip and the living body move relative to the three-dimensional frame of reference.