Ultrasound Solves an Important Clinical Problem in Diagnosing Arrhythmia

Columbia Engineering researchers have used an ultrasound technique they pioneered a decade ago–electromechanical wave imaging (EWI)–to accurately localize atrial and ventricular cardiac arrhythmias in adult patients in a double-blinded clinical study. They evaluated the accuracy of EWI for localization of various arrhythmias in all four chambers of the heart prior to catheter ablation: the results showed that EWI correctly predicted 96% of arrhythmia locations as compared with 71% for 12-lead ECGs.

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