Method and system for noninvasive mapping of arrhythmia using electromechanical wave imaging

Abstract

The disclosed subject matter discloses systems and methods for generating a cardiac electromechanical activation map using ultrasound data acquired from a clinical ultrasound system operating at a frame rate less than 150 frames per second. The method includes acquiring ultrasound data of a heart of a subject and acquiring a corresponding electrocardiogram (ECG) signal, identifying an onset of electrical activation based on the ECG signal, processing the ultrasound data to obtain displacement information of myocardial tissue, calculating interframe strain based on the displacement information, determining activation time points based on zero-crossings of the interframe strain, and generating an electromechanical activation map indicating spatial propagation of activation across the myocardial tissue, thereby localizing at least one arrhythmic feature.

Dependencies are inferred from the claim text.