Cano ME, Jaso RA, Tavares ME, Estrada JC, Mena EA, Reynoso O, González-Vega A, Córdova-Fraga T

Language: English
References: 23
Page: 100-108
PDF size: 223.82 Kb.

ABSTRACT

This work presents the instrumentation steps towards the development of a low cost personal device for conditioning, modulating in amplitude and recording the electrical activity generated by bipolar leads of the heart. Also, a method of remote monitoring using an audio transmitter-receiver in modulated frequency adapted to a PC sound card is considered. To determine the modulation effects on the PQRST complex, simultaneous measurements on several volunteers are carried out. The signal is measured twice, initially before the first modulation and again after the final demodulation. For comparison, the same signals are simultaneously passed through a commercial electrocardiograph. Because of the modulation effect, measurements between both methods show differences up to 13% in some intervals of the PQRST complex. The PR segment and the QRS wave are the most affected. In general, there is a good agreement between the recordings obtained with our device and the trademark electrocardiograph.

REFERENCES

1. Guyton CA, Hall EJ. Textbook of medical physiology. Mc Graw-Hill, 11 ed. (Spain), 2001; (9): 103-114.

2. Jia-Ren CC, Cheng-Chi T. “A new wireless-type physiological signal measuring system using a PDA and the bluetooth technology”. Instrumentation Science & Technology 2009; 37(5): 503-515.

3. Shlomo S, Samuel S. “the ECG in diabetes mellitus”. Circulation 2009; 120(16): 1633-1636.

4. Tavel ME. “Stress testing in cardiac evaluation: current concepts with emphasis on the ECG”. Chest, 2001; 119(3): 907-925.

5. Heikki V, Huikuri1 MJ, Pekka R, Moerch-Joergensen R, Juha H, Vesa V, Boland J et al. “Prediction of fatal or near-fatal cardiac arrhythmia events in patients with depressed left ventricular function after an acute myocardial infarction”. European Heart Journal 2009; 30(6): 689-698.

6. Rubart M, Zipes DP. “Mechanisms of sudden cardiac death”. J Clin Invest 2005; 115: 2305-2315.

7. Diana K, Audrius A. Lip-Gregory YH. “Atrial fibrillation following cardiac surgery: clinical features and preventative strategies”. European Heart Journal 2009; 30(4): 410-425.

8. Yi-Li T, Yo-Zong S, Fu-Shan J. “Portable, real-time, 12-lead ECG monitoring system”. Instrumentation Science & Technology 2010; 38(4): 305-312.

9. Güler NF, Fidan U. “Wireless transmission of ECG signal”. Journal of Medical Systems 2006; 30: 231-235.

10. Daskalov IK, Dotsinsky IA, Christov II. “Developments in ECG acquisition, preprocessing, parameter measurements and recording”. IEEE Engineering in Medicine and Biology Magazine, 1998; 17: 50-58.

11. Borromeo S, Rodriguez-Sánchez C, Machado F, Hernández-Tamames JA, de la Prieta RA. “Reconfigurable, wearable, wireless ECG system”. In Proceedings of the 29th Annual International Conference of the IEEE EMBS, Cité Internationale, Lyon, France August 23-26, 2007.

12. Thaddeus RF, Fulford-Jones, Gu-Yeon W, Welsh M. “A Portable, Low-Power, Wireless two-lead EKG system”. In Proceedings of the 26th Annual International Conference of the IEEE EMBS San Francisco, CA, USA September 1-5, 2004.

13. Clifford GD, Azuaje F, McSharry P. Advanced methods and tools for ECG data analysis. Artech House Publishers, 1 ed. (Boston, MA) 2006; (chapter 3): 57.

14. Clifford GD, Azuaje F, McSharry P. Advanced methods and tools for ECG data analysis. Artech House Publishers, 1 ed. (Boston, MA) 2006; (chapter 2): 45.

15. Kligfield P, Gettes LS, Bailey JJ, Childers R, Deal BJ, Hancock EW et al. “Recommendations for the standardization and interpretation of the electrocardiogram: Part I: The electrocardiogram and its technology: A Scientific Statement from the American Heart Association Electrocardiography and Arrhythmias Committee, Council on Clinical Cardiology; the American College of Cardiology Foundation; and the Heart Rhythm Society. Endorsed by the International Society for Computerized Electrocardiology”. Heart Rhythm 2007; 4(3): 394-412.

16. Ying-Wen B, Chien-Yung C, Cheng-Kai L, Chuang-Hsiang H, Yuh-Ting Ch, Ya-Nan L. “Adjustable 60Hz noise reduction and ECG signal amplification of a remote electrocardiogram system”. In proceedings of the instrumentation and Measurement Technology Conference Vail, CO, USA, 20-22 May 2003.

17. Drewes AM, Andreasen A, Assentoft JE, Nagel O. “Seven-channel digital telemetry system for monitoring and direct computer capturing of biological data”. Journal of Biomedical Engineering, 1993; 15(5): 435-440.

18. Mohseni P, Najafi K, Eliades SJ, Wang X. “Wireless multichannel biopotential recording using an integrated FM telemetry circuit”. IEEE Transactions on Neural Systems and Rehabilitation Engineering 2005; 13(3): 263-271.

19. Güler I, Kara S. “A low-cost biotelemetry system for long time monitoring of physiological data”. Journal of Medical Systems 1996; 20(3): 151-156.

20. Bobbie PO, Chaudhari H, Arif CZ, Pujari S. “Electrocardiogram (EKG) Data Acquisition and wireless transmission”. WSEAS Transactions on Systems 2004; 4(1): 2665-2672.

21. Dubin D. Rapid interpretation of EKG’s. Cover Pub Co, 6 ed. (Tampa, FL) 2000: (4): 76.

22. Mali RD, Khadtare MS, Bombale UL. “Removal of 50Hz PLI using discrete wavelet transform for quality diagnosis of biomedical ECG signal”. International Journal of Computer Applications, 2011; 23(7): 35-40.

23. Clifford GD, Azuaje F, McSharry P. Advanced methods and tools for ECG data analysis. Artech House Publishers, 1 ed. (Boston, MA) 2006; (chapter 5-6): 135-196.