901-36 Computer-based Interpretation of Intracardiac Electrograms: Identifying Rhythm Mechanisms from Ventricular Extrastimulus Tests
نویسندگان
چکیده
منابع مشابه
Computer Simulation of Electrophysiology Study based on Whole - heart Models
Computer simulation of Electrophysiology Study (EPS) is realized by employing pacing protocols in EPS with the Wei-Harumi model. Intracardiac electrograms induced by typical pacing protocols–including the basic interval measurement, atrial extrastimulus pacing, ventricular extrastimulus pacing, incremental atrial pacing, and incremental ventricular pacing are successfully reproduced with a mode...
متن کاملFrom Intracardiac Electrograms to Electrocardiograms: Models and Metamodels
We consider the problem of building a standard electrocardiogram (ECG) from the electrical potential provided by a pacemaker in a few points of the heart (electrogram). We use a 3D mathematical model of the heart and the torso electrical activity, able to generate “computational ECG”, and a “metamodel” based on a kernel ridge regression. The input of the metamodel is the electrogram, its output...
متن کاملGraph-Based Rhythm Interpretation
We present a system that interprets the notated rhythm obtained from optical music recognition (OMR). Our approach represents the notes and rests in a system measure as the vertices of a graph. We connect the graph by adding voice edges and coincidence edges between pairs of vertices, while the rhythmic interpretation follows simply from the connected graph. The graph identification problem is ...
متن کاملIdentification of ventricular tachycardia using intracardiac electrograms: a comparison of unipolar versus bipolar waveform analysis.
Implantable antitachycardia devices suffer a high false-positive rate of delivery of therapy because current detection schemes based upon ventricular rate and rate variations are excessively sensitive at the cost of specificity. Several methods have been proposed for providing complementary information derived from morphologic analysis of intraventricular electrograms in order to increase speci...
متن کاملPattern of initiation of monomorphic ventricular tachycardia in recorded intracardiac electrograms
BACKGROUND By analyzing stored intracardiac electrograms during spontaneous monomorphic ventricular tachycardia (VT), we examined the patterns of the VT initiation in a group of patients with implantable cardioverter defibrillators (ICDs). METHODS Stored electrograms (EGMs) were monomorphic VTs and at least 5 beats before the initiation and after the termination of VT were analyzed. Cycle len...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1995
ISSN: 0735-1097
DOI: 10.1016/0735-1097(95)91513-w