Advanced Methods and Tools for ECG Data Analysis - Part 4 ppsx

... http://www.physionet.org/challenge/2002 for more details. P1: Shashi August 24, 2006 11 :42 Chan-Horizon Azuaje˙Book 126 Models for ECG and RR Interval Processes Figure 4. 10 Example of a 12-lead version of ECGSYN, produced for [120] ... observation, and short transient sources of noise. Joint time-frequency analysis (JTFA) is then essentially a transfor- mation of an N-point M...

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... 17 3 .40 % R 600 2 0.33% 40 0 4 1.00% A 48 4 20 4. 13% 41 8 29 6. 94% V 1,272 14 1.10% 1,237 23 1.86% I 272 5 1. 84% 200 6 3.00% E 55 0 0 50 2 4. 00% N 2,000 12 0.6% 2,000 44 2.20% a 67 2 2.99% 64 4 6.25% f ... Vol. 44 , 1997, pp. 891–900. P1: Shashi August 24, 2006 11:56 Chan-Horizon Azuaje˙Book 344 An Introduction to Unsupervised Learning for ECG Classification Figure 13 .4...

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... Shashi August 24, 2006 11:32 Chan-Horizon Azuaje˙Book Advanced Methods and Tools for ECG Data Analysis Gari D. Clifford Francisco Azuaje Patrick E. McSharry Editors artechhouse.com P1: Shashi August 24, ... of Data Libraries 35 2 .4 Database Analysis An Example Using WFDB 37 2.5 ECG Acquisition Hardware 41 2.5.1 Single-Channel Architecture 41 2.5.2 Isolation and Pr...

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... 0 1 4 0 0 0 0 0 0 1 99.93 99. 74 103 1725 0 0 1 0 0 0 0 4 0 0 99.77 99. 94 105 2117 29 4 133 0 0 0 0 4 0 1 99.77 94. 17 106 1236 45 9 0 1 0 0 0 0 0 1 0 99. 94 99. 94 108 146 1 13 2 257 0 0 0 0 4 0 0 ... a data format and access libraries include: • What are the data going to be used for? • Are the data format and libraries extensible? • Is the data format compact?...

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... still performed in the Fourier do- main. Other methods for performing spectral estimation from irregularly sampled data do exist and include the min-max interpolation method [75] and the well- known ... Metrics for Different Magnitudes of Ectopy (γ ) Metric → LF HF LF HF γ Actual Value ↓ 0. 64 0. 64 0.39 0.61 † 0. 64 0.60 0.37 0.62 0.8 0. 64 0. 34 0.26 0. 74 0.7 0. 64 0.32...

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... Decomposition and the Hilbert Spectrum for Nonlinear and Non-Stationary Time Series Analysis, ” Proc. R. Soc. Lond. A, Vol. 45 4, 1998, pp. 903–995. [ 14] Huang, N. E., and S. S. Shen, The Hilbert-Huang ... H., and H. Heinrich, Analysis of ECG Late Potentials Using Time-Frequency Methods, ” in M. Akay, (ed.), Time Frequency and Wavelets in Biomedical Signal Process- ing, Cha...

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... classified TWA de- tection into preprocessing, data reduction, and analysis stages. This section focuses upon the strengths and limitations of TWA analysis methods, broadly compris- ing short-term Fourier ... 11 :46 Chan-Horizon Azuaje˙Book 6 .4 Empirical Nonlinear Filtering 185 Figure 6 .4 Illustration of NNR: (a) original noisy ECG signal, y(t); (b) underlying noise-free ECG...

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... Annotator: r c (N) [%] 744 727 147 544 r n (N) [%] 77 54 37 27 21 19 18 16  r(N) [%]3 7 1013 141 4 141 2 ⇑ ST Segment Patterns, Human Annotator: r c (N) [%] 744 727 147 544 r n (N) [%] 74 48 29 21 15 12 11 10  r(N) ... Shashi August 24, 2006 11 :48 Chan-Horizon Azuaje˙Book 240 ECG- Derived Respiratory Frequency Estimation Figure 8.22 Block diagram of the generalized simulation design....

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... Shashi August 24, 2006 11:52 Chan-Horizon Azuaje˙Book 286 ST Analysis 10 .4. 3 Assessing Robustness of ST Analyzers Performance assessment using standard inputs [42 , 44 , 49 , 50] can provide much useful information ... with standard algorithms. For the analysis of 10-second 12-lead ECG signals, this is rarely an issue. However, when very large amounts of ECG data must be proce...

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... 0. 04 0. 04 0.05 0.06 V 13 0.03 0. 04 0.03 0.03 0. 04 0. 04 V 14 0 .47 0. 54 0 .42 0.51 0 .44 0 .47 V 21 1.08 1. 24 1.01 1.26 1.31 1.16 V 22 4. 55 4. 22 3.27 3.25 3.71 3 .46 V 23 3.16 2.97 2. 24 2.17 2.56 2 .41 V 24 45.51 ... amplitudes, 11, 260 WaveForm DataBase. See WFDB Wavelet filtering, 140 48 CWT, 141 42 denoising example, 144 48 DWT, 142 44 See also Linear filterin...

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