Diagnostic quality driven physiological data collection for personal healthcare

We believe that each individual is unique, and that it is necessary for diagnosis purpose to have a distinctive combination of signals and data features that fits the personal health status. It is essential to develop mechanisms for reducing the amount of data that needs to be transferred (to mitigate the troublesome periodically recharging of a device) while maintaining diagnostic accuracy. Thus, the system should not uniformly compress the collected physiological data, but compress data in a personalized fashion that preserves the “important” signal features for each individual such that it is enough to make the diagnosis with a required high confidence level. We present a diagnostic quality driven mechanism for remote ECG monitoring, which enables a notation of priorities encoded into the wave segments. The priority is specified by the diagnosis engine or medical experts and is dynamic and individual dependent. The system pre-processes the collected physiological information according to the assigned priority before delivering to the backend server. We demonstrate that the proposed approach provides accurate inference results while effectively compressing the data.

[1]  Pablo Laguna,et al.  A database for evaluation of algorithms for measurement of QT and other waveform intervals in the ECG , 1997, Computers in Cardiology 1997.

[2]  W. A. Coberly,et al.  ECG data compression techniques-a unified approach , 1990, IEEE Transactions on Biomedical Engineering.

[3]  M.L. Hilton,et al.  Wavelet and wavelet packet compression of electrocardiograms , 1997, IEEE Transactions on Biomedical Engineering.

[4]  Nuria Oliver,et al.  HealthGear: a real-time wearable system for monitoring and analyzing physiological signals , 2006, International Workshop on Wearable and Implantable Body Sensor Networks (BSN'06).

[5]  A. Alesanco,et al.  On the Guarantee of Reconstruction Quality in ECG Wavelet Codecs , 2006, 2006 International Conference of the IEEE Engineering in Medicine and Biology Society.

[6]  James D. Johnston,et al.  Transform coding of audio signals using perceptual noise criteria , 1988, IEEE J. Sel. Areas Commun..

[7]  R G Mark,et al.  PhysioNet: a research resource for studies of complex physiologic and biomedical signals , 2000, Computers in Cardiology 2000. Vol.27 (Cat. 00CH37163).

[8]  S. Itoh,et al.  A wavelet transform-based ECG compression method guaranteeing desired signal quality , 1998, IEEE Transactions on Biomedical Engineering.

[9]  Jérôme Boudy,et al.  Combining Wavelet Transform and Hidden Markov Models for ECG Segmentation , 2007, EURASIP J. Adv. Signal Process..

[10]  Arnon D. Cohen,et al.  The weighted diagnostic distortion (WDD) measure for ECG signal compression , 2000, IEEE Transactions on Biomedical Engineering.

[11]  Arnon D. Cohen,et al.  ECG signal compression using analysis by synthesis coding , 2000, IEEE Transactions on Biomedical Engineering.

[12]  Francisco López-Ferreras,et al.  On the use of PRD and CR parameters for ECG compression. , 2005, Medical engineering & physics.

[13]  Chih-Lung Lin,et al.  A quality-on-demand algorithm for wavelet-based compression of electrocardiogram signals , 2002, IEEE Transactions on Biomedical Engineering.

[14]  Steven W. Smith,et al.  The Scientist and Engineer's Guide to Digital Signal Processing , 1997 .

[15]  Chih-Lung Lin,et al.  Wavelet-based ECG compression using dynamic vector quantization with tree codevectors in single codebook , 2002, IEEE Trans. Biomed. Eng..

[16]  A. Cohen,et al.  ECG compression using long-term prediction , 1993, IEEE Transactions on Biomedical Engineering.

[17]  Stephen J. Roberts,et al.  Markov Models for Automated ECG Interval Analysis , 2003, NIPS.

[18]  P. Laguna,et al.  ECG data compression with the Karhunen-Loeve transform , 1996, Computers in Cardiology 1996.

[19]  Ahmad Rahmati,et al.  Context-for-wireless: context-sensitive energy-efficient wireless data transfer , 2007, MobiSys '07.

[20]  Anders Lansner,et al.  Compression and Storage of Medical Data in Pacemakers , 2005 .

[21]  Brenda K. Wiederhold,et al.  ECG to identify individuals , 2005, Pattern Recognit..

[22]  Aleksandar Milenkovic,et al.  System architecture of a wireless body area sensor network for ubiquitous health monitoring , 2005 .

[23]  G. Moody,et al.  The apnea-ECG database , 2000, Computers in Cardiology 2000. Vol.27 (Cat. 00CH37163).

[24]  C. Peng,et al.  Detection of obstructive sleep apnea from cardiac interbeat interval time series , 2000, Computers in Cardiology 2000. Vol.27 (Cat. 00CH37163).