Patent ID: 11911095
Assignee: QUEEN'S UNIVERSITY AT KINGSTON
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method for generating a map for cardiac wavefront propagation and for treating atrial arrhythmia, comprising:
obtaining a set of local activation times (LATs) of electrograms and location coordinates of electrodes of a catheter;
using a processor to execute code stored on non-transitory storage media compatible with the processor, the code containing instructions to direct the processor to generate an activation time function (ATF) by:
using two or more candidate functions (CFs) selected from a bank of CFs and estimating weighting and unknown parameters of the CFs to match available LATs of the electrodes;
determining the ATF as a combination of the selected CFs that matches the LATs;
using the ATF to generate at least one map selected from a propagation map, an isochronal map, and a conduction velocity map of the cardiac wavefront propagation; and
treating atrial arrhythmia in a subject by performing ablation therapy guided by the at least one map.