title: Preliminary study on the detection of cardiac arrhythmias based on multiple simultaneous electrograms.
abstract: 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.
authors: Graduate School of Biomedical Engineering, Tohoku University, Aoba-ku, Sendai 980-8579, Japan. telma@yoshizawa.ecei.tohoku.ac.jp
authors: Telma Keiko
authors: TK
authors: Sugai
authors: Makoto
authors: M
authors: Yoshizawa
authors: Makoto
authors: M
authors: Abe
authors: Kazuo
authors: K
authors: Shimizu
authors: Masashi
authors: M
authors: Inagaki
authors: Masaru
authors: M
authors: Sugimachi
authors: Kenji
authors: K
authors: Sunagawa
mesh_terms: 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*