Title :
Applying Analysis Tools of Heart Rate Variability Upon Determining P-Wave Interval of ECG
Author :
Balasubramanian, K. ; Cellatoglu, A.
Author_Institution :
Dept. of Comput. Eng., Eur. Univ. of Lefke, Mersin
Abstract :
One aspect in analysis of soundness of the heart is to monitor the variation of p-p interval in ECG the electrocardiogram. This paper reports an efficient hardware method of identifying the p-wave in the ECG and counting the time interval between successive p-waves. The hardware unit named as PWLL (p-wave locked loop) gets locked to the p-wave of the given ECG automatically and provides the p-p interval count in both analog and digital form. This count is read to PC for further analysis. Alternatively, in a software method an algorithm is used to identify the p-wave from the samples of ECG and the time interval is counted and presented. Graphical presentation of the current p-p time interval is made on the monitor screen. Also, important analysis tasks such as autocorrelation of p-p interval and its power spectral density are estimated and presented instantaneously. The visual presentation of these information enables the cardiologists to diagnose the functioning of the heart more effectively.
Keywords :
computer graphics; electrocardiography; medical signal processing; ECG; electrocardiogram; graphical presentation; heart rate variability; p-wave interval; p-wave locked loop; software method; Acoustical engineering; Autocorrelation; Cardiology; Computer architecture; Computerized monitoring; Electrocardiography; Hardware; Heart rate measurement; Heart rate variability; Instrumentation and measurement; Mean squared difference analysis; PWLL; electrocardiogram; heart rate variability; p-p time interval;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1540-3
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2008.4547306