Patent ID: 8512255

Claim:
A device for creating a database of dipole densities d(y) at the surface of one or more cardiac chambers of a patient, said device comprising: a first receiver configured to receive mapping information from multiple electrodes located on one or more catheters, the mapping information received when the multiple electrodes are placed in the one or more cardiac chambers; a second receiver configured to receive anatomical information from at least one imaging instrument configured to produce a geometrical depiction of the one or more cardiac chambers; and a dipole density module configured to generate the database of dipole densities d(y), wherein the dipole density module determines a dipole density for individual triangle shaped projections onto the cardiac chamber wall, where each triangle projection at a location y contributes {acute over (ω)}(x,y) times the dipole density d(y) to a potential V(x) at a point x, wherein {acute over (ω)}(x,y) is the solid angle for that triangle projection, and where: a) x represents a series of locations within one or more cardiac chambers; and b) V(x) is a measured potential at point x, said measured potential recorded by the multiple electrodes.