Method for medical device localization based on magnetic and impedance sensors

A system for identifying locations of electrodes, comprising:

• a physical catheter having physical electrodes disposed in a three-dimensional space;
• a medical positioning system to measure impedance responses of the physical electrodes in response to an applied electrical potential field;
• a processor and memory for storing non-transitory computer readable instructions to:
• predict locations of the physical electrodes within the three-dimensional space based on a catheter model of the physical catheter, wherein predicted locations of the physical electrodes define model electrode locations;
• generate predicted model impedance responses for the model electrode locations;
• obtain impedance responses for the physical electrodes from the medical positioning system;
• generate calculated locations of the physical electrodes in the three-dimensional space based on the predicted impedance responses and the impedance responses;
• and
• a display operatively connected to the processor and memory for displaying the calculated locations of the physical electrodes.