15 July 2016 Differential diagnosis of cardiovascular diseases and T-wave alternans
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Abstract
T wave alternans (TWA) is the variation of the T-wave in electrocardiogram that is observed between periodic beats. TWA is one of the important precursors used to diagnose sudden cardiac death (SCD). Several clinical studies have tried to determine the significance of using TWA analysis to detect abnormalities that may lead to Ventricular Arrhythmias, as well as establish metrics to perform risk stratification for cardiovascular patients with prior cardiac episodes. The statistical significance of TWA in predicting ventricular arrhythmias has been established in patients across several diagnoses. Studies have also shown the significance of the predictive value of TWA analysis in post myocardial infarction patients, risk of SCD, congestive heart failure, ischemic cardiomyopathy, and Chagas disease.
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Mouli Ramasamy, Mouli Ramasamy, Vijay K. Varadan, Vijay K. Varadan, "Differential diagnosis of cardiovascular diseases and T-wave alternans", Proc. SPIE 9802, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2016, 98021E (15 July 2016); doi: 10.1117/12.2219620; https://doi.org/10.1117/12.2219620
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