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Movahedi, Mohammad Mehdi, Shakerpour, Mohamadreza, Mousavi, Shahrokh, Nori, Ahmad, Mousavian Dehkordi, Seyyed Hesam, Parsaei, Hossein. (1402). A Hardware-Software System for Accurate Segmentation of Phonocardiogram Signal. سامانه مدیریت نشریات علمی, 13(3), 261-268. doi: 10.31661/jbpe.v0i0.2104-1301
Mohammad Mehdi Movahedi; Mohamadreza Shakerpour; Shahrokh Mousavi; Ahmad Nori; Seyyed Hesam Mousavian Dehkordi; Hossein Parsaei. "A Hardware-Software System for Accurate Segmentation of Phonocardiogram Signal". سامانه مدیریت نشریات علمی, 13, 3, 1402, 261-268. doi: 10.31661/jbpe.v0i0.2104-1301
Movahedi, Mohammad Mehdi, Shakerpour, Mohamadreza, Mousavi, Shahrokh, Nori, Ahmad, Mousavian Dehkordi, Seyyed Hesam, Parsaei, Hossein. (1402). 'A Hardware-Software System for Accurate Segmentation of Phonocardiogram Signal', سامانه مدیریت نشریات علمی, 13(3), pp. 261-268. doi: 10.31661/jbpe.v0i0.2104-1301
Movahedi, Mohammad Mehdi, Shakerpour, Mohamadreza, Mousavi, Shahrokh, Nori, Ahmad, Mousavian Dehkordi, Seyyed Hesam, Parsaei, Hossein. A Hardware-Software System for Accurate Segmentation of Phonocardiogram Signal. سامانه مدیریت نشریات علمی, 1402; 13(3): 261-268. doi: 10.31661/jbpe.v0i0.2104-1301

A Hardware-Software System for Accurate Segmentation of Phonocardiogram Signal

Journal of Biomedical Physics and Engineering
دوره 13، شماره 3، شهریور 2023، صفحه 261-268    اصل مقاله (944.2 K)
نوع مقاله: Original Research
شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.2104-1301
نویسندگان
Mohammad Mehdi Movahedi1، 2؛ Mohamadreza Shakerpour3؛ Shahrokh Mousavi4؛ Ahmad Nori5؛ Seyyed Hesam Mousavian Dehkordi6؛ Hossein Parsaei* 1، 7
1Department of Medical Physics and Biomedical Engineering, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
2Ionizing and Non-ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
3School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
4Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
5Novin Iran Specialized Clinic, Shiraz, Iran
6Faculty of Electrical Engineering, Shiraz University of Technology, Shiraz, Iran
7Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
چکیده
Background: Phonocardiogram (PCG) signal provides valuable information for diagnosing heart diseases. However, its applications in quantitative analyses of heart function are limited because the interpretation of this signal is difficult. A key step in quantitative PCG is the identification of the first and second sounds (S1 and S2) in this signal.
Objective: This study aims to develop a hardware-software system for synchronized acquisition of two signals electrocardiogram (ECG) and PCG and to segment the recorded PCG signal via the information provided in the acquired ECG signal.
Material and Methods: In this analytical study, we developed a hardware-software system for real-time identification of the first and second heart sounds in the PCG signal. A portable device to capture synchronized ECG and PCG signals was developed. Wavelet de-noising technique was used to remove noise from the signal. Finally, by fusing the information provided by the ECG signal (R-peaks and T-end) into a hidden Markov model (HMM), the first and second heart sounds were identified in the PCG signal.
Results: ECG and PCG signals from 15 healthy adults were acquired and analyzed using the developed system. The average accuracy of the system in correctly detecting the heart sounds was 95.6% for S1 and 93.4% for S2.  
Conclusion: The presented system is cost-effective, user-friendly, and accurate in identifying S1 and S2 in PCG signals. Therefore, it might be effective in quantitative PCG and diagnosing heart diseases.
کلیدواژه‌ها
Electrocardiogram؛ Electrocardiography؛ Heart Sounds؛ Markov Chains؛ Phonocardiography؛ PCG Segmentation
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مراجع
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