High resolution analysis of the P wave

Author

Saki, M.C. ; Ider, Y.Z. ; Muderrisoglu, H. ; Ozin, B. ; Oto, A.

Author_Institution

Middle East Technol. Univ., Ankara, Turkey

fYear

1991

fDate

23-26 Sep 1991

Firstpage

21

Lastpage

24

Abstract

A method for averaging the P wave is proposed. This method has been tested against the esophageal recordings. Due to the large deflection of the P wave on the electrode placed into the esophagus, esophageal recordings were considered as reliable references for determination of the alignment accuracy of the proposed method. An attempt was made to quantify the high frequency content of the P wave. P wave averages were obtained from surface X, Y, Z recordings of 67 patients which comprised normals, patients with atrial arrhythmias, and patients with left atrial dilatation, and the high frequency content of the averaged P waves was quantified using filtered P wave duration and root mean square (RMS) value of the vector magnitude in the last 20 milliseconds

Keywords

electrocardiography; waveform analysis; 20 ms; ECG P wave; alignment accuracy; atrial arrhythmias; esophageal recordings; high resolution analysis; left atrial dilatation; patients; root mean square value; vector magnitude; Cardiology; Electrodes; Esophagus; Filters; Frequency; Leg; Mouth; Sampling methods; Surface waves; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1991, Proceedings.

Conference_Location

Venice

Print_ISBN

0-8186-2485-X

Type

conf

DOI

10.1109/CIC.1991.169035

Filename

169035