---
license: mit
language:
  - en
tags:
  - ecg
  - arrhythmia
  - healthcare
  - time-series
  - biosignal
---

# ECG Arrhythmia Dataset — MIT-BIH Processed

Preprocessed beat segments derived from the MIT-BIH Arrhythmia Database (PhysioNet).

## Contents

| File | Description |
|---|---|
| X.npy | Beat segments — shape (N, 180), float32 |
| y.npy | Encoded labels — integers 0-4 |
| y_raw.npy | Raw string labels — N, L, R, V, A |

## Classes

| Label | Class | Description |
|---|---|---|
| 0 | N | Normal sinus rhythm |
| 1 | L | Left bundle branch block |
| 2 | R | Right bundle branch block |
| 3 | V | Premature ventricular contraction |
| 4 | A | Atrial premature contraction |

## Source
Raw data from [MIT-BIH Arrhythmia Database](https://physionet.org/content/mitdb/1.0.0/).  
Preprocessing: bandpass filter (0.5–50 Hz) + z-score normalization + 180-sample windowing.

## Related
- [Model](https://huggingface.co/dheerajthuvara/ecg-arrhythmia-detection)
- [GitHub](https://github.com/dheerajthuvara/ecg-arrhythmia-detection)
- [Portfolio](https://dtlabs.me)