Preliminary study on the detection of cardiac arrhythmias based on multiple simultaneous electrograms.
Although implantable cardioverter-defibrillators have improved significantly in the past decades, the algorithms used in the identification of life-threatening arrhythmias are still not accurate enough. Conventional methods commonly misclassify tachycardias, sometimes initiating an unnecessary and uncomfortable treatment. In this paper, we proposed a new method for the identification of ventricular tachycardias and fibrillations based on the comparison of simultaneous electro-grams. Our method could successfully separate supraventricular tachycardias and normal sinus rhythm, which do not require any treatment, from ventricular tachycardias and fibrillation, which are life-threatening arrhythmias and must be terminated, with a sensitivity of 93.0% and a specificity of 92.7% from the comparison of ventricular electrograms. In future studies, the classification using electrograms from the right heart must be improved.
Sugai
Telma Keiko
TK
Graduate School of Biomedical Engineering, Tohoku University, Aoba-ku, Sendai 980-8579, Japan. telma@yoshizawa.ecei.tohoku.ac.jp
Yoshizawa
Makoto
M
Abe
Makoto
M
Shimizu
Kazuo
K
Inagaki
Masashi
M
Sugimachi
Masaru
M
Sunagawa
Kenji
K
D000465:Algorithms; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D001281:Atrial Fibrillation; D002309:Cardiology / Q000379:methods; D017147:Defibrillators, Implantable; D003937:Diagnosis, Differential; D004285:Dogs; D004562:Electrocardiography / Q000379:methods*; D004867:Equipment Design; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D016571:Neural Networks, Computer; D012680:Sensitivity and Specificity; D017180:Tachycardia, Ventricular / Q000175:diagnosis*