  Ventricular arrhythmias comprise a group of disorders which manifest
clinically in a variety of ways from ventricular premature beats (VPB) and no
sustained ventricular tachycardia (in healthy subjects) to sudden cardiac death
due to ventricular tachyarrhythmia in patients with and/or without structural
heart disease. Ventricular fibrillation (VF) and ventricular tachycardia (VT)
are the most common electrical mechanisms for cardiac arrest. Accurate and
automatic recognition of these arrhythmias from electrocardiography (ECG) is a
crucial task for medical professionals. The purpose of this research is to
develop a new index for the differential diagnosis of normal sinus rhythm (SR)
and ventricular arrhythmias, based on phase space reconstruction (PSR).
