Automatic editing of electroanatomical maps

A system for mapping, comprising:

• an interface configured to receive physiological data measured at multiple points distributed over the inner surface of a cavity within a body of a living subject;
• and
• a processor configured to compute an initial three-dimensional (3D) form representing an inner surface of the cavity, and to compute, for each area among a plurality of areas of the initial 3D form, a respective distance from the area to a nearest one of the multiple points, to identify one or more of the areas for which the respective distance is greater than a specified threshold distance, to modify the initial 3D form so as to bring each of the identified areas to within the specified threshold distance of at least one of the multiple points, and to render to a display a 3D map of the cavity based on the modified 3D form and the measured physiological data.

A computer software product, comprising a tangible, non-transitory computer-readable medium in which program instructions are stored, which instructions, when read by a computer, cause the computer to receive physiological data measured at multiple points distributed over the inner surface of a cavity within a body of a living subject, to compute an initial three-dimensional (3D) form representing an inner surface of the cavity, and to compute, for each area among a plurality of areas of the initial 3D form, a respective distance from the area to a nearest one of the multiple points, to identify one or more of the areas for which the respective distance is greater than a specified threshold distance, to modify the initial 3D form so as to bring each of the identified areas to within the specified threshold distance of at least one of the multiple points, and to render to a display a 3D map of the cavity based on the modified 3D form and the measured physiological data.