Journal: Scientific Reports

Article Title: The application of Lempel-Ziv and Titchener complexity analysis for equine telemetric electrocardiographic recordings

doi: 10.1038/s41598-019-38935-7

Figure Lengend Snippet: Effect of signal length on the complexity values returned by different estimators. ( a ) Distribution of complexity values obtained by analysis of different length samples extracted from a 120-sec fragment of telemetric equine ECG recording. Sixty random samples from each of the 15 horses analysed for each strip length. ( b ) Dependence of complexity values normalized to complexity at the maximal strip length (n = 15). ( c ) Effect of sample length on the coefficient of variation of different complexity values (n = 15).

Article Snippet: Each horse was atraumatically fitted with a telemetric ECG recorder (Televet 100, Engel Engineering Services GmbH, Germany).

Techniques: Stripping Membranes

Journal: Scientific Reports

Article Title: The application of Lempel-Ziv and Titchener complexity analysis for equine telemetric electrocardiographic recordings

doi: 10.1038/s41598-019-38935-7

Figure Lengend Snippet: Dependence of ECG complexity on heart rate. ( a ) Representative data from four horses. ( b ) Average data from 51 horses grouped at 5 bpm heart rate ranges; only groups with three or more observations are shown.

Article Snippet: Each horse was atraumatically fitted with a telemetric ECG recorder (Televet 100, Engel Engineering Services GmbH, Germany).

Techniques:

Journal: Scientific Reports

Article Title: The application of Lempel-Ziv and Titchener complexity analysis for equine telemetric electrocardiographic recordings

doi: 10.1038/s41598-019-38935-7

Figure Lengend Snippet: Equine ECG complexity analysis method. ( a ) Typical segment of equine ambulatory ECG. Grey, original signal, black – signal after resampling and filtration. ( b ) Conversion of ECG recording to a beat- detection binary string and subsequent complexity analyses. Beat detections shown by vertical grey bars. Decomposition of the resulting beat-detection binary string to the individual factors is indicated by alternating black/white text background. See text for the description of the decomposition methods.

Article Snippet: Each horse was atraumatically fitted with a telemetric ECG recorder (Televet 100, Engel Engineering Services GmbH, Germany).

Techniques: Filtration

Journal: The Veterinary record

Article Title: Comparison between smartphone electrocardiography and standard three-lead base apex electrocardiography in healthy horses

doi: 10.1136/vr.105759

Figure Lengend Snippet: Fleiss’s kappa agreement between three observers for categorical variables over all measurements, and either the smartphone-based method (AliveCor (AC)) or gold standard base-apex method (Televet (TV)) for all 15 horses

Article Snippet: The authors demonstrate that 1) the AliveCor-002 handheld smartphone ECG device was well tolerated by all horses; 2) at least 15 seconds of interpretable ECG tracing could be obtained from the AliveCor by recording the ECG for up to 45 seconds and visualised using the AliveECG application on an iPad mini; 3) there was moderate to good correlation between the AliveCor and Televet, and good correlation between observers correlation for the identification of the presence of benign arrhythmias; 4) correlation between the AliveCor and Televet varied from no correlation to very good, while correlation between observers was moderate to very good for the measurement of HR, P-wave and QRS duration, and PR, RR, QT and TT intervals; 5) 100 per cent of AliveCor HR measurements were within one measurement (4 bpm) of the median Televet HR and 6) 50 per cent–100 per cent of AliveCor P-wave and QRS duration, RR and QT interval measurements were within 5 per cent of the corresponding median Televet measurement; and 47 per cent and 7 per cent of AliveCor PR and TT interval measurements, respectively were within 5 per cent of the corresponding median Televet measurement.

Techniques:

Journal: The Veterinary record

Article Title: Comparison between smartphone electrocardiography and standard three-lead base apex electrocardiography in healthy horses

doi: 10.1136/vr.105759

Figure Lengend Snippet: Intraclass correlation coefficient (ICC) between three observers for continuous variables over all measurements, and either the smartphone-based method (AliveCor (AC)) or gold standard base-apex method (Televet (TV)) for all 15 horses

Article Snippet: The authors demonstrate that 1) the AliveCor-002 handheld smartphone ECG device was well tolerated by all horses; 2) at least 15 seconds of interpretable ECG tracing could be obtained from the AliveCor by recording the ECG for up to 45 seconds and visualised using the AliveECG application on an iPad mini; 3) there was moderate to good correlation between the AliveCor and Televet, and good correlation between observers correlation for the identification of the presence of benign arrhythmias; 4) correlation between the AliveCor and Televet varied from no correlation to very good, while correlation between observers was moderate to very good for the measurement of HR, P-wave and QRS duration, and PR, RR, QT and TT intervals; 5) 100 per cent of AliveCor HR measurements were within one measurement (4 bpm) of the median Televet HR and 6) 50 per cent–100 per cent of AliveCor P-wave and QRS duration, RR and QT interval measurements were within 5 per cent of the corresponding median Televet measurement; and 47 per cent and 7 per cent of AliveCor PR and TT interval measurements, respectively were within 5 per cent of the corresponding median Televet measurement.

Techniques:

Journal: Frontiers in Veterinary Science

Article Title: Measuring heart rate variability using a heart rate monitor in horses ( Equus caballus ) during groundwork

doi: 10.3389/fvets.2022.939534

Figure Lengend Snippet: Table representing the mean difference between the ECG and HRM and the standard deviation of the differences and the upper and lower limit of the 95% confidence interval, for the mean heart rate (HR) in beats per minute, and time-based parameters of heart rate variability (SDNN in ms and RMSSD in ms) during both the baseline conditions (B) and groundwork (GW) for the horses ( n = 28).

Article Snippet: Kruuse ECG Electrodes were connected to the Televet 100 (Engel Engineering, Heusenstamm, Germany) which was also attached to the girth to prevent movement of the equipment while the horse is walking, electrode location is shown in .

Techniques: Standard Deviation