A REAL TIME CARDIAC MONITORING SYSTEM - Arterial Pressure Waveform Capture and Analysis

V. G. Almeida, T. Pereira, E. Borges, J. M. R. Cardoso, C. Correia, H. C. Pereira

Abstract

An arterial pressure waveform recorder and analyser based on a Microchip PIC microcontroller (µC), dsPIC33FJ256GP710 is described in this article. Our purpose is to develop a dsPIC based signal monitoring and processing system for cardiovascular studies, specially dedicated to arterial pressure waveform (APW) capture. We developed a piezoelectric (PZ) probe designed to reproduce the APW from the pulsatile activity taken non-invasively at the vicinity of a superficial artery. The advantages in developing a microcontroller based system show up in decreasing the associate cost, as well as in increasing the functionality of the system. Based on a MathWorks Simulink platform, the system supports the development and transfer of program code from a personal computer to the microcontroller, and evaluation of its execution on rapid prototyping hardware. Results demonstrate that embedded system can be an alternative to be used in autonomous cardiovascular probes. Although additional studies are still required, this probe seems to be a valid, low cost and easy to use alternative to expensive and hard to manipulate devices in the market.

References

  1. Almeida V., Pereira T., Borges E., Figueiras E., Cardoso J., Correia C., Pereira H. C., Malaquias J. L. and Simões J. B., 2010. Synthesized cardiac waveform in the evaluation of augmentation index algorithms. In IEEE EMB, Proceedings of the 3rd International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2010). Valencia, Spain 20- 23 January 2010.
  2. Almeida V., Santos P, Figueiras E, Borges E, Pereira T, Cardoso J, Correia C., 2011. Hemodynamic features extraction from a new Arterial pressure waveform Probe. Accepted to be presented in Biosignals 2011 (BIOSTEC 2011). Rome, Italy.
  3. Avolio A. P., Butlin M., and Walsh A., 2010. Arterial blood pressure measurement and pulse wave analysis - their role in enhancing cardiovascular assessment. Physiol. Meas. 31, R1-R47.
  4. Bansal D., Khan M.,Salhan A. K., 2009. A real time embedded set up based on digital signal controller for detection of bio-signals using sensors. Sensors & Transducers Journal, Vol. 105, Issue 6, pp. 26-32
  5. Bing-Nan L., Ming-Chui D., Vai M. I., Mak P. U., 2004. An embedded medical advisory system for mobile cardiovascular monitoring devices. IEEE International workshop on biomedical circuits & systems. S2.1-1-4
  6. Buteler, B., 1961. The relation of systolic upstroke time and pulse pressure in aortic stenosis.
  7. Germano J., Ramalho R., Sousa L., 2009. On the design of distributed autonomous embedded systems for biomedical applications. CST Pervasive Health 2009.
  8. Karki J., Signal Conditioning Piezoelectric Sensors. [Online] Texas Instruments, Application Report, SLOA033A (2000) Available at: http://focus.ti.com /lit/an/sloa033a/sloa033a.pdf [Accessed 21 June 2010]
  9. Kerhuel L., Embedded Target for dsPIC. [Online] Available at: www.kerhuel.eu. [Accessed 01 November 2010]
  10. Klig V. 1978. Biomedical applications of microprocesors. Proceedings of the IEEE, vol. 66, no.2, 151-161
  11. Laurent S., Cockcroft J., Van Bortel L., Boutouyrie P., Giannattasio C., Hayoz D., Pannier B., Vlachopoulos C., Wilkinson I., and Struijker-Boudier H., 2006. Expert consensus document on arterial stiffness: methodological issues and clinical applications. European Heart Journal, 27, 2588-2605.
  12. Mackenzie I. S., Wilkinson I. B. and Cockroft J. R., 2002. Assessment of arterial stiffness in clinical practice. Q J Med., 95, 67-74.
  13. Pereira H. C., Cardoso J. M., Almeida V. G., Pereira T., Borges E., Figueiras E., Ferreira L. R., Simões J. and Correia C., 2009. Programmable test bench for hemodynamic studies IFMBE Proc. 25 1460ff
  14. Pereira, H. C., Pereira, T., Almeida, V., Borges, E., Figueiras, E., Simões, J. B., Malaquias, J. L., Cardoso, J. M. R., Correia, C. M. B., 2010. Characterization of a double probe for local pulse wave velocity assessment. Physiol. Meas 31,1449-1465
  15. Smolnikar M., Mohorcic M., 2008. A framework for developing a microchip PIC microcontroller based applications. Wseas Transactions On Advances In Engineering Education, vol 5, Issue 2, pp83-91
  16. Van Bortel L. M., Balkestein E. J., van der Heijden-Spek J., Vanmolkot F. H., Staessen J. A., Kragten J. A., Vredeveld J. W., Safar M. E., Struijker-Boudier H. A. and Hoeks A. P., 2001. Non-invasive assessment of local arterial pulse pressure:comparison of applanation tonometry and echo-tracking. J. Hypertens. 19 1037- 44
Download


Paper Citation


in Harvard Style

G. Almeida V., Pereira T., Borges E., M. R. Cardoso J., Correia C. and C. Pereira H. (2011). A REAL TIME CARDIAC MONITORING SYSTEM - Arterial Pressure Waveform Capture and Analysis . In Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - Volume 1: PECCS, ISBN 978-989-8425-48-5, pages 83-90. DOI: 10.5220/0003369600830090


in Bibtex Style

@conference{peccs11,
author={V. G. Almeida and T. Pereira and E. Borges and J. M. R. Cardoso and C. Correia and H. C. Pereira},
title={A REAL TIME CARDIAC MONITORING SYSTEM - Arterial Pressure Waveform Capture and Analysis},
booktitle={Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - Volume 1: PECCS,},
year={2011},
pages={83-90},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003369600830090},
isbn={978-989-8425-48-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - Volume 1: PECCS,
TI - A REAL TIME CARDIAC MONITORING SYSTEM - Arterial Pressure Waveform Capture and Analysis
SN - 978-989-8425-48-5
AU - G. Almeida V.
AU - Pereira T.
AU - Borges E.
AU - M. R. Cardoso J.
AU - Correia C.
AU - C. Pereira H.
PY - 2011
SP - 83
EP - 90
DO - 10.5220/0003369600830090