The analysis of electrocardiograph (ECG) signal provides important clinical information for heart disease diagnosis. The ECG signal consists of the P, QRS complex, and T-wave. These waves correspond to the fields induced by specific electric phenomenon on the cardiac surface. Among them, the detection of ischemia can be achieved by analysis the ST segment. Ischemia is one of the most serious an...

Using a method for identifying precisely the lie of the ventricular structures in the body at autopsy , the anatomic position of the heart was compared with the directions of the QRS electrical forces in a large number of subjects with and without heart disease. While the mean QRS axis varied through 180 degrees in these subjects, the anatomic position of the left ventricle varied less than 45 ...

For more than a century, there has been interest in pulse wave velocity and pulse transit time as a possible metric for blood pressure and other cardiovascular parameters. The most common approach in noninvasive measurement of these metrics has been to measure the time delay between the QRS complex on the electrocardiograph and the detection of the finger photoplethysmograph. This paper introdu...

having a broad QRS complex, it is important to be able to diVerentiate between a supraventricular and a ventricular tachycardia. Medication given for the treatment of a supraventricular tachycardia (SVT) may be harmful to a patient with a ventricular tachycardia (VT). 2 A reasonable haemodynamic condition during a tachycardia may erroneously lead to the wrong diagnosis of SVT. Familiarity with ...

The work deals with the fatigue analysis of automobile drivers by acquiring their physical signals during real world driving task to determine the driver’s relative stress level. The ECG signals were evaluated using two methods one using time domain analysis and second method using frequency domain analysis. In time domain analysis Pan Tomkins method is used for the detection of QRS complex and...