The MIT-BIH Arrhythmia Database contains 48 half-hour excerpts of two-channel ambulatory ECG recordings, obtained from 47 subjects studied by the BIH Arrhythmia Laboratory between 1975 and 1979. Twenty-three recordings were chosen at random from a set of 4000 24-hour ambulatory ECG recordings collected from a mixed population of inpatients (about 60%) and outpatients (about 40%) at Boston's Beth Israel Hospital; the remaining 25 recordings were selected from the same set to include less common but clinically significant arrhythmias that would not be well-represented in a small random sample.

This database includes 25 long-term ECG recordings of human subjects with atrial fibrillation (mostly paroxysmal). Of these, 23 records include the two ECG signals (in the .dat files); records 00735 and 03665 are represented only by the rhythm (.atr) and unaudited beat (.qrs annotation files. The individual recordings are each 10 hours in duration, and contain two ECG signals each sampled at 250 samples per second with 12-bit resolution over a range of ±10 millivolts. The original analog recordings were made at Boston's Beth Israel Hospital (now the Beth Israel Deaconess Medical Center) using ambulatory ECG recorders with a typical recording bandwidth of approximately 0.1 Hz to 40 Hz. The rhythm annotation files (with the suffix .atr) were prepared manually; these contain rhythm annotations of types (AFIB (atrial fibrillation), (AFL (atrial flutter), (J (AV junctional rhythm), and (N (used to indicate all other rhythms). (The original rhythm annotation files, still available in the old directory, used AF, AFL, J, and N to mark these rhythms; the atr annotations in this directory have been revised for consistency with those used for the MIT-BIH Arrhythmia Database.) Beat annotation files (with the suffix .qrs) were prepared using an automated detector and have not been corrected manually. For some records, manually corrected beat annotation files (with the suffix .qrsc) are available. (The .qrs annotations may be useful for studies of methods for automated AF detection, where such methods must be robust with respect to typical QRS detection errors. The .qrsc annotations may be preferred for basic studies of AF itself, where QRS detection errors would be confounding.) Note that in both .qrs and .qrsc files, no distinction is made among beat types (all beats are labelled as if normal).

Since 1975, our laboratories at Boston s Beth Israel Hospital (now the Beth Israel Deaconess Medical Center) and at MIT have supported our own research into arrhythmia analysis and related subjects. One of the first major products of that effort was the MIT-BIH Arrhythmia Database, which we completed and began distributing in 1980. The database was the first generally available set of standard test material for evaluation of arrhythmia detectors, and has been used for that purpose as well as for basic research into cardiac dynamics at more than 500 sites worldwide. Originally, we distributed the database on 9-track half-inch digital tape at 800 and 1600 bpi, and on quarter-inch IRIG-format FM analog tape. In August, 1989, we produced a CD-ROM version of the database. The MIT-BIH Arrhythmia Database contains 48 half-hour excerpts of two-channel ambulatory ECG recordings, obtained from 47 subjects studied by the BIH Arrhythmia Laboratory between 1975 and 1979. Twenty-three recordings wer

This database includes 78 half-hour ECG recordings chosen to supplement the examples of supraventricular arrhythmias in the MIT-BIH Arrhythmia Database.

Context

ECG data from mit-bih database from physionet in plain text format.

Content

Raw signals in .csv files and original annotations in .txt. Structure .csv files number_of_sample, raw_value_signal_1, raw_value_signal_2

Acknowledgements

The original data can be found in https://www.physionet.org/physiobank/database/mitdb/

Five open ECG databases from PhysioNet are involved in this study namely the MIT-BIH arrhythmia database,St-Petersburg Institute of Cardiological Technics 12-lead Arrhythmia Database,The MIT-BIH Normal Sinus Rhythm Database,The MIT-BIH Long Term Database and European ST-T Database.

Yearly citation counts for the publication titled "The impact of the MIT-BIH Arrhythmia Database".

An electrocardiograph (ECG) is widely used in diagnosis and prediction of cardiovascular diseases (CVDs). The traditional ECG classification methods have complex signal processing phases that leads to expensive designs. This paper provides a deep learning (DL) based system that employs the convolutional neural networks (CNNs) for classification of ECG signals present in PhysioNet MIT-BIH Arrhythmia database. The proposed system implements 1-D convolutional deep residual neural network (ResNet) model that performs feature extraction by directly using the input heartbeats. We have used synthetic minority oversampling technique (SMOTE) that process class-imbalance problem in the training dataset and effectively classifies the five heartbeat types in the test dataset. The classifier’s performance is evaluated with ten-fold cross validation (CV) using accuracy, precision, sensitivity, F1-score, and kappa. We have obtained an average accuracy of 98.63%, precision of 92.86%, sensitivity of 92.41%, and specificity of 99.06%. The average F1-score and Kappa obtained were 92.63% and 95.5% respectively. The study shows that proposed ResNet performs well with deep layers compared to other 1-D CNNs.

Dataset

This dataset was created by Vaibhav Pendke

Contents

This database includes 22 half-hour ECG recordings of subjects who experienced episodes of sustained ventricular tachycardia, ventricular flutter, and ventricular fibrillation.

Dataset

This dataset was created by Sathishkumar

Contents

It contains the following files:

pacemaker rhythm

Performance comparison on the benchmark MIT-BIH arrhythmia database.

Full-length ECG time series data of 48 arrhythmic patients has been collected from popular MIT-BIH Arrhythmia Database (mitdb) (https://physionet.org/physiobank/database/mitdb/). The data sets include ECG time series data of 24 men aged between 32 to 89 years and of 22 women aged between 23 to 89 years. On the other hand, the normal data (healthy person) has been collected from MIT-BIH Normal Sinus Rhythm Database (nsrdb) (https://physionet.org/content/nstdb/1.0.0/) consisting of 18 long-term ECG signals of subjects having no significant arrhythmia. The subjects include 5 men and 13 women, aged between 26 to 45 and 20 to 50 respectively. The signal used here for the analysis is a modified limb lead II (MLII), obtained by placing the electrodes on the chest of the patients. We did not include the records of two patients with patient IDs 102 and 104 from MIT-BIH Arrhythmia Database as the required MLII data were not available due to surgical dressings on the above-mentioned patients. On the other hand, we also consider the data from ECG1 mode which are ECG signals (Normal Sinus Rhythm Database) relating to healthy persons and these data sets are regarded as complementary to MLII data of the arrhythmia database. Here, total no. of data points of each of the disease data series is 21600 with frequency 360.01 sec-1 whereas the same for the normal data series is 7680 with frequency 128 sec-1. Therefore, each of the data series is recorded for 60 sec time duration. A filter is utilized for processing of signals in order to selectively isolate a particular frequency or range of frequencies from an assortment of multiple frequencies in a signal. The choice of appropriate filter for processing of the system generated signals requires maximum noise reduction with minimal signal distortion. One of the best filters for noise clearing of biomedical data, including ECG signals, seems to be Savitzky–Golay (SG) filter. The fundamental principle of SG filter is to consider 2n + 1 equidistant points taking n = 0 as a center to represent a polynomial of degree p (where p<2n + 1). A set of points is to be fitted to some curve. For this purpose, SG filter computes the value of the least square polynomial (or its derivative) at a point, i = 0, over the decided frame range. This filter applies the method of linear least squares for data smoothing, which helps to maintain the original shape of the signal. A SG filter generally requires pre-determined values of order and frame depending on the frequency and length of the data. Usually, trial and error method or prior experience is required to decide the satisfactory values of parameters. Here, the values of “Frame” for diseased and normal data were assumed to be 37 and 13 respectively and the “Order” of the filter were 3 for each type of data sets. The ‘Table SI’ contains the filtered data sets for both type of disease and normal subject.

Accuracy of different compression methods in the MIT-BIH arrhythmia database test set at different compression ratios.

Network of 42 papers and 76 citation links related to "The impact of the MIT-BIH Arrhythmia Database".

Accuracy of different classification methods in the MIT-BIH ECG signal database test set at different compression ratios.

1) Data Introduction • The ECG Arrhythmia Dataset contains segmented and preprocessed ECG signals, specifically designed for heartbeat classification. It includes two collections of heartbeat signals from the MIT-BIH Arrhythmia Dataset and the PTB Diagnostic ECG Database. The dataset is intended for exploring heartbeat classification using deep neural networks and transfer learning. It offers a large number of samples for both normal heartbeats and those affected by various arrhythmias and myocardial infarction.

2) Data Utilization (1) ECG Arrhythmia data has characteristics that: • This dataset includes ECG signals for normal heartbeats and those affected by various arrhythmias and myocardial infarction, providing segmented signals corresponding to each heartbeat, making it suitable for heartbeat classification research. (2) ECG Arrhythmia data can be used to: • Predictive Modeling: Useful for developing deep neural network models to predict arrhythmias and myocardial infarction based on heartbeat signals. • Medical Research: Contributes to understanding and researching patterns related to various heart diseases through ECG signal analysis. • Healthcare Planning: Supports early diagnosis and personalized treatment planning to help manage the health of heart disease patients.

The MIT-Physio AFib ECG Database is a comprehensive integrated resource that combines two of the most frequently used datasets for atrial fibrillation research: the MIT‑BIH AFib Database and the PhysioNet/Computing in Cardiology Challenge 2017 dataset. This resource includes 25 long-term 10‑hour recordings with dual-channel ECG signals (recorded at 250 Hz with 12‑bit resolution over ±10 mV) as well as short single‑lead ECG recordings (ranging from 30 to 60 seconds at 300 Hz).

SE and +P stand for sensitivity and positive productivity respectively, while N/R denotes not reported.