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Fig. 3.
A PCG Signal displayed by the Visualizer with the zoom in.
4 Conclusions
For a software application in the biomedical field, the integrity of the input data is critical to ensure that
the plot is faithful to the biomedical signal was digitized. The data structure used for this purpose must be
properly chosen and controlled. The change in appearance features such as stretching and movement of the
graph must be made in data structures separate from the original to avoid distortion accumulated during
system operation.
It is necessary that the user is notified by the system such as a displayed warning about the limits of
resolution in a graph and source data. It is imperative to avoid interpolated or extrapolated data from the
deployment algorithm which can be interpreted as data obtained from the patient and used as a basis for
making treatment decisions or as a diagnostic. For software related to human health, it is necessary that its
operation and design are sufficiently clear and straightforward to prevent that a malfunction of the same
form an impediment to adequate health care.
We believe that this software forms a good first-step in a unified biomedical signal processing tool,
satisfying the above listed requirements, and look forward to developing and testing it with a greater
capacity for a more varied array of signals.
Acknowledgments
. We thank Gizel Najera (B.S. Eng.) for the writing of must of the code of this project. We
thank the Science and Engineering Department and the
Institute of Design and Technological Innovation Dr.
Carlos Escandon Dominguez
(IDIT) both from the Universidad Iberoamericana Puebla, for the opportunity to
develop this useful tool for healthcare.
References
[1] Colin-Ortega, J. C. Heredia-Jiménez, A.H., Celorio-Ramón, R. Integration of Technology in a Transducer for
Phonocardiography. CNIB2011. P.p. 48-52. Sociedad Mexicana de Ingeniería Biomédica.
[2] Dubin, Dale. Rapid Interpretation of EKG's, Sixth Edition. Cover Publishing Company. USA. 2000.
[3] Zipes, Douglas P. and Jalife, Jose. Cardiac Electrophysiology: From Cell to Bedside, 5th Edition. Saunders Elsevier.
USA. 2009.
[4] Guyton, Arthur C. and Hall, John E. Textbook of Medical Physiology, 11th Edition. Elsevier Saunders. USA. 2006.