Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: Characteristics of human ambulatory electrocardiography (AECG) and ECG techniques available in mice.

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: Mouse in supine position with schematic representation of the obtained lead configuration (lead I, lead II and lead III) with representative ECG-traces. P-wave, QRS complex, and T-wave are annotated on the ECG-trace in lead I configuration. Vertical and horizontal scale bars represent 1.5 mV and 100 ms, respectively. G; ground, RFP; right front paw, LFP; left front paw, RHP; right hind paw, LHP; left hind paw.

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: Schematic representation of the different pre-processing steps applied to the input file and resulting effect on the ECG trace. FFT; Fast Fourier Transformation.

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques: Transformation Assay

Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: Sensitivity, precision and specificity of R-peak detection compared between our automated custom algorithms and PhysioZoo ( n = 10 ECG traces of twenty minutes).

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: Graphical user interface presentation of the automatically calculated ECG parameters after running the custom MATLAB ® scripts on a representative twenty-minute murine ECG trace. ( a ) Detected R-peaks are visualized with blue dots on the (compressed) murine ECG trace. Total amount of detected R-peaks and calculated heart rate is presented in the title of the graph. ( b ) Histogram representing the distribution of the observed RR-intervals. X-values are subdivided in intervals of 1 ms. Automated calculation of the mean RR-interval and Full-Width at Half-Maximum (representative for heart rate variability) is presented in the title of the graph. The level of the Full-Width at Half-Maximum value is visualized by means of a red line within the graph. ECG; electrocardiogram, BPM; beats per minute, FWHM; Full-Width at Half-Maximum.

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: Sensitivity, precision and specificity of R-peak detection of the same ECG file at different sample rates analyzed with our custom algorithms.

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: Ectopic beat detection. ( a ) Representative output obtained for ectopic beat detection showing the aberrant RR-interval. Detected R-peaks are indicated with blue dots on the band-pass filtered ECG-trace. ( b ) Correlation analysis between the percentage of bad quality of the ECG trace and false positive and true positive ectopic beat detection ( n = 8 ECG traces of twenty minutes). The number of false positive and true positive ectopic beats are depicted with a grey x and a black +, respectively. ROI; Region of interest.

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: P-wave analysis on representative mouse ECG files at a sample rate of 2000 Hz. ( a ) Blocked P-wave based on the presence of a P-wave (indicated with arrow) without subsequent QRS-complex. ( b ) Sinus arrest based on the absence of an extra P-wave in between a long RR-interval. Vertical and horizontal scale bars represent 0.5 mV and 100 ms, respectively. Hashtag indicates absence of p-wave indicating sinus arrest.

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: Ambulatory Electrocardiographic Monitoring and Ectopic Beat Detection in Conscious Mice

doi: 10.3390/s20143867

Figure Lengend Snippet: Representative ectopic beats recorded in mice using lead I, II and III configurations. ( a ) An ectopic beat with either an atrial or junctional origin, based on a narrow QRS complex; ( b , c ) ectopic beats with origin in the ventricles (based on a broad QRS complex); for ( b ) an inferior axis and for ( c ) a superior axis can be inferred based on the ECG pattern. Vertical and horizontal scale bars represent 1 mV and 100 ms, respectively. Ectopic beats are indicated with asterisks.

Article Snippet: Next, using a custom-made amplifier (based on TL074 Opamp, Texas Instruments), the ECG signals were high-pass filtered at 0.15 Hz and amplified 512 times.

Techniques:

Journal: Materials Today Bio

Article Title: Emerging rapid detection methods for the monitoring of cardiovascular diseases: Current trends and future perspectives

doi: 10.1016/j.mtbio.2025.101663

Figure Lengend Snippet: Working mechanism of ECG electrodes and wearable sensors for ECG measurement (a) working principle of ECG electrodes. Reprinted from Ref. . Copyright 2021, Wiley. (b) PEDOT:PSS conductive polymer based flexible dry ECG electrode. Reprinted from Ref. . Copyright 2025, Elsevier. (c) conductive adhesive electrode by integrating PEDOT:PSS with PVA and d-sorbitol for the long term ECG recording with high SNR. Reprinted from Ref. . Copyright 2024, Wiley. (d) LM@SF-PAA hydrogel based flexible patch for the real-time and continuous monitoring of ECG signal. Reprinted from Ref. . Copyright 2025, Wiley.

Article Snippet: [ ] , Developed a preprocessing algorithm for PPG, demonstrating high accuracy in heart rate variability analysis. , Cardio diagnostics using PPG signals , Synchronous PPG and ECG signals , Statistical analysis.

Techniques: Polymer, Adhesive

Journal: Materials Today Bio

Article Title: Emerging rapid detection methods for the monitoring of cardiovascular diseases: Current trends and future perspectives

doi: 10.1016/j.mtbio.2025.101663

Figure Lengend Snippet: Summary of wearable ECG and PPG sensors for the monitoring of CVDs.

Article Snippet: [ ] , Developed a preprocessing algorithm for PPG, demonstrating high accuracy in heart rate variability analysis. , Cardio diagnostics using PPG signals , Synchronous PPG and ECG signals , Statistical analysis.

Techniques: Adhesive

Journal: Materials Today Bio

Article Title: Emerging rapid detection methods for the monitoring of cardiovascular diseases: Current trends and future perspectives

doi: 10.1016/j.mtbio.2025.101663

Figure Lengend Snippet: Signal processing techniques explored for the monitoring of CVDs.

Article Snippet: [ ] , Developed a preprocessing algorithm for PPG, demonstrating high accuracy in heart rate variability analysis. , Cardio diagnostics using PPG signals , Synchronous PPG and ECG signals , Statistical analysis.

Techniques: Biomarker Discovery, Extraction

Journal: Pacing and Clinical Electrophysiology

Article Title: Real‐world performance of the atrial fibrillation monitor in patients with a subcutaneous ICD

doi: 10.1111/pace.14010

Figure Lengend Snippet: Overview of the AFM algorithm development, simulated performance, and real‐world performance testing datasets

Article Snippet: The ECG waveforms were derived from either the Cameron Health ECG Signal Library or from spontaneously occurring S‐ICD episodes, both of which have been described in detail previously.

Techniques:

Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

Article Title: Narrowing filtered QRS duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

doi: 10.1111/anec.12523

Figure Lengend Snippet: Illustration of the correlation of ⊿QRS duration on a 12‐lead ECG (postimplantation‐preimplantation) and ⊿fQRS on an SAECG (postimplantation‐preimplantation)

Article Snippet: Measurement of fQRS SAECGs (Predictor BSM‐32, Arrhythmia Research Technology, Fitchburg, Massachusetts, USA) were obtained before and 1 week after CRT implantation.

Techniques:

Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

Article Title: Narrowing filtered QRS duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

doi: 10.1111/anec.12523

Figure Lengend Snippet: Kaplan‐Meier curves for death from any cause in nonischemic HF patients receiving CRT with narrowing fQRS or nonnarrowing fQRS

Article Snippet: Measurement of fQRS SAECGs (Predictor BSM‐32, Arrhythmia Research Technology, Fitchburg, Massachusetts, USA) were obtained before and 1 week after CRT implantation.

Techniques:

Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

Article Title: Narrowing filtered QRS duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

doi: 10.1111/anec.12523

Figure Lengend Snippet: Kaplan‐Meier curves for hospitalization due to worsening HF (a) or the occurrence of ventricular tachyarrhythmias (b) in nonischemic HF patients receiving CRT with narrowing fQRS or nonnarrowing fQRS

Article Snippet: Measurement of fQRS SAECGs (Predictor BSM‐32, Arrhythmia Research Technology, Fitchburg, Massachusetts, USA) were obtained before and 1 week after CRT implantation.

Techniques:

Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

Article Title: Narrowing filtered QRS duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

doi: 10.1111/anec.12523

Figure Lengend Snippet: Univariate and multivariate analyses for the primary outcome

Article Snippet: Measurement of fQRS SAECGs (Predictor BSM‐32, Arrhythmia Research Technology, Fitchburg, Massachusetts, USA) were obtained before and 1 week after CRT implantation.

Techniques:

Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

Article Title: Narrowing filtered QRS duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

doi: 10.1111/anec.12523

Figure Lengend Snippet: Electrocardiographic characteristics

Article Snippet: Measurement of fQRS SAECGs (Predictor BSM‐32, Arrhythmia Research Technology, Fitchburg, Massachusetts, USA) were obtained before and 1 week after CRT implantation.

Techniques:

Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

Article Title: Narrowing filtered QRS duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

doi: 10.1111/anec.12523

Figure Lengend Snippet: Echocardiographic changes in patients with narrowing fQRS and patients with nonnarrowing fQRS

Article Snippet: Measurement of fQRS SAECGs (Predictor BSM‐32, Arrhythmia Research Technology, Fitchburg, Massachusetts, USA) were obtained before and 1 week after CRT implantation.

Techniques:

Journal: Annals of Noninvasive Electrocardiology : The Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

Article Title: Narrowing filtered QRS duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

doi: 10.1111/anec.12523

Figure Lengend Snippet: Patient characteristics

Article Snippet: Measurement of fQRS SAECGs (Predictor BSM‐32, Arrhythmia Research Technology, Fitchburg, Massachusetts, USA) were obtained before and 1 week after CRT implantation.

Techniques: Clinical Proteomics, Functional Assay, Medications

Journal: Sensors (Basel, Switzerland)

Article Title: Tunnel Magnetoresistance Sensor with AC Modulation and Impedance Compensation for Ultra-Weak Magnetic Field Measurement

doi: 10.3390/s22031021

Figure Lengend Snippet: The MCG signals measured with the TMR sensor in an unshielded environment and the synchronous ECG signals recorded with a commercial cardiographic machine.

Article Snippet: During the MCG measurement, an electrocardiogram (ECG) signal was recorded with a commercial three-lead cardiographic machine (AD8232 heart rate monitor, from SparkFun Electronics, Niwot, CO, USA).

Techniques: