Phonocardiographic Signal and Electrocardiographic Signal Analysis for the Detection of Cardiovascular Diseases

V. Kalaivani¹, R. Lakshmi Devi² and V. Anusuyadevi¹

¹Department of Computer Science Engineering National Engineering College, Kovilpatti, Tamilnadu, India.

²Department of Information Technology, National Engineering College, Kovilpatti, Tamilnadu, India.

Corresponding Author E-mail: vkcse@nec.edu.in

DOI : http://dx.doi.org/10.13005/bbra/2610

ABSTRACT: The main objective is to develop a novel method for the heart sound analysis for the detection of cardiovascular diseases. It can be considered as one of the important phases in the automated analysis of PCG signals. Heart sounds carry information about mechanical activity of the cardiovascular system. This information includes specific physiological state of the subject and the short term variability related to the respiratory cycle. The interpretation of sounds and extraction of changes in the physiological state while maintaining the short term variability are still an open problem and is subject of this paper. The system deals with the process of de-noising of the heart sound signal(PCG) and the signal is decomposed into several sub-bands and the de-noised heart sound signal is segmented into the basic heart sounds S1 and S2, along with the systolic and diastolic interval.. Also, the ECG signal is de-noised. Meanwhile, the R-peaks are identified from the ECG signal and RR interval is obtained. Extraction of features are done from both the heart sound signal and the ECG signal. From the features, the R-peaks are identified from the ECG signal and RR interval is obtained. The attribute selection is to find the best attribute values that can be used for the classification process. Finally, using classification technique, cardiac diseases are detected. This work is implemented by using MATLAB software.

KEYWORDS: Cardiovascular Diseases; Classification Diastolic; ECG; Heart Sounds; Phonocardiograpy(PCG); Systolic;

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