Title :
Continuous localization of cardiac activation sites using a database of multichannel ECG recordings
Author :
Potse, Mark ; Linnenbank, André C. ; Peeters, Heidi A P ; SippensGroenewegen, Arne ; Crimbergen, C.A.
Author_Institution :
Dept. of Med. Phys., Amsterdam Univ., Netherlands
fDate :
5/1/2000 12:00:00 AM
Abstract :
Monomorphic ventricular tachycardia and ventricular extrasystoles have a specific exit site that can be localized using the multichannel surface electrocardiogram (EGG) and a database of paced ECG recordings. An algorithm is presented that improves on previous methods by providing a continuous estimate of the coordinates of the exit site instead of selecting one out of 25 predetermined segments. The accuracy improvement is greatest, and most useful, when adjacent pacing sites in individual patients are localized relative to each other. Important advantages of the new method are the objectivity and reproducibility of the localization results.
Keywords :
electrocardiography; medical signal processing; signal resolution; adjacent pacing sites; algorithm; cardiac activation sites; continuous estimate; continuous localization; database; monomorphic ventricular tachycardia; multichannel ECG recordings; multichannel surface electrocardiogram; objectivity; paced ECG recordings; reproducibility; specific exit site; ventricular extrasystoles; Associate members; Catheterization; Databases; Electrocardiography; Heart rate variability; Humans; Laboratories; Physics; Reproducibility of results; Valves; Algorithms; Body Surface Potential Mapping; Electrocardiography; Humans; Models, Cardiovascular; Signal Processing, Computer-Assisted; Tachycardia, Ventricular;
Journal_Title :
Biomedical Engineering, IEEE Transactions on