Patent ID: 7907994

Claim:
An apparatus for locating an arrhythmogenic abnormality in a heart of a living subject, comprising: a mapping catheter operative for stimulating said heart at multiple locations endocardially or epicardially; and detecting respective sets of pace-mapped electrocardiographic signals at respective locations of said catheter, said catheter having a position sensor; a position processor programmed to receive position signals from said position sensor and operative for determining said respective locations of said catheter; and wherein said mapping catheter is used for creating a functional map; a display for displaying said functional map; a pattern processor, programmed for detecting an abnormal electrocardiographic signal pattern in said sets of pace-mapped electrocardiographic signals indicative of an arrhythmogenic focus or pathway and marking said abnormal electrocardiographic signal pattern on said functional map on said display; memorizing said pattern; and subsequently automatically identifying a new instance of said pattern and marking said new instance of said pattern on said functional map on said display when recording new electrocardiographic signals.