Patent ID: 6983183

Claim:
An apparatus for detecting TWA in potential cardiac patients comprising: a sensor adapted to sense an ECG from a patient; a T wave detector adapted to detect a plurality of T waves in said ECG; an analyzer adapted to perform at least one of a statistical test tests and a periodicity transform on characteristics of said T waves to make a decision on whether TWA are present or not; and a template generator adapted to generate a template for said T waves based on the characteristics of a plurality of T waves; wherein said analyzer is adapted to determine said characteristic for a plurality of consecutive T waves to form a series, said analyzer being adapted to operate on said series; and to perform at least one of the following statistical tests: difference in means, adjacent values, Raleigh and number of zero crossings wherein said T wave detector is adapted to detect at least one of the following T wave characteristics: peak value, area under the T wave, curvature, ST segment slope, and area of smaller T wave segments.