narayanlab/react_mapping

Repository contains codes to run REACT mapping algorithm. REACT maps are a novel approach to identify organized islands in atrial fibrillation.

REACT_Mapping

Repetitive Activity (REACT) Mapping of Atrial Tachyarrhythmias

Repository contains codes to compute REACT maps from input electrgram signals. REACT mapping is a novel approach to identify islands with organized electrograms in atrial fibrillation.

Full paper: https://academic.oup.com/europace/advance-article/doi/10.1093/europace/euad055/7080278

Update on 04/17/2023: New version has an option to run it in serial or parallel.

Update on 07/15/2023: Option to automatically calculate cycle length (algorithm uses autocorrelation)

Code execution syntax:

Generate_REACT_Map(offset, egmMat, rhythmType, CL, chamber, parallelProcessing, tsegment)

offset: Basket catheter spline offset ('A' or 'B' or 'C' or...'H').

egmMat: [time x 64] matrix of electrograms - consider truncating time to as less samples as possible for better execution speed

rhythmType: 'AF' or 'AT'

CL: [1x64] Cycle length of each electrogram. If CL is unknown, then leave it empty, i.e. [], to automatically calculate it.

Chamber: 1 for LA and 0 for RA

parallelProcessing: 1 for yes and 0 for no

tsegment: timesamples range

Example usage: Generate_REACT_Map('A', EGM(100:3400), 'AF', [], 1, 1, 100:3400)