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Dataset

MIMIC-IV-ECG

Diagnostic Electrocardiogram Matched Subset (v1.0)

ECGPhysioNetODbL 1.0Raw waveforms
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MIMIC-IV-ECG is a PhysioNet matched subset of about 800,000 ten-second 12-lead diagnostic ECGs from nearly 160,000 patients who appear in the MIMIC-IV Clinical Database. Records are sampled at 500 Hz in WFDB format and can be linked to MIMIC-IV clinical modules and, when available, cardiologist report identifiers. Released under the Open Data Commons Open Database License v1.0 (open access).

License
ODbL 1.0
At a glance
Type
Dataset
Host
PhysioNet (opens in a new tab)
DOI
10.13026/4nqg-sb35 (opens in a new tab)
Licence
ODbL 1.0 (opens in a new tab)
Access
Not reported
Subjects
160,000
Signals
ECG
PPG sites
None
Setting
Not reported
Wrist
No
Raw waveforms
Yes
Tasks
Fm pretraining
Models
Papers
Updated
Oct 27, 2026

Original description

The MIMIC-IV-ECG module contains approximately 800,000 diagnostic electrocardiograms across nearly 160,000 unique patients. These diagnostic ECGs use 12 leads and are 10 seconds in length. They are sampled at 500 Hz. This subset contains all of the ECGs for patients who appear in the MIMIC-IV Clinical Database. When a cardiologist report is available for a given ECG, we provide the needed information to link the waveform to the report. The patients in MIMIC-IV-ECG have been matched against the MIMIC-IV Clinical Database, making it possible to link to information across the MIMIC-IV modules.

Verbatim fromPhysioNet· Licence: Open Data Commons Open Database License v1.0

MIMIC-IV-ECG: ChatPPG research summary card

Key numbers

160,000
Subjects
500 Hz
Released sampling rate
500 Hz (12-lead, 10 s records)

How it works

How MIMIC-IV-ECG works: Devices & body sites → Signals recorded → TasksDevices & body sites: None (PPG site). Signals recorded: MIMIC-IV-ECG, 160,000 subjects · 500 Hz, signals ECG. Tasks: Fm pretraining.Devices & body sitesNone: PPG siteNonePPG siteSignals recordedMIMIC-IV-ECG160,000 subjects · 500 HzECGTasksFm pretrainingFm pretraining
Sampling
500 Hz (12-lead, 10 s records)
Device roles
Clinical reference (ECG)

Models trained or evaluated on it· 2

Papers using it· 6

FAQ

How many subjects are in MIMIC-IV-ECG?

MIMIC-IV-ECG has data from 160,000 subjects, as listed in its research record.

What signals does MIMIC-IV-ECG include?

MIMIC-IV-ECG includes ECG data. Sampling rate as recorded: 500 Hz (12-lead, 10 s records). Raw waveforms are included.

What can MIMIC-IV-ECG be used for?

Research tasks it supports: foundation model pretraining.

How do I get MIMIC-IV-ECG, and what is its licence?

It is hosted on PhysioNet at https://physionet.org/content/mimic-iv-ecg/1.0/. Licence: ODbL 1.0.

Which models and papers in the ChatPPG research hub use MIMIC-IV-ECG?

The hub links it to models: IECG and QECGBERT (VQ-VAE beat-token BERT ECG FM; Afghah lab); 4 papers, including "ECG-JEPA: Learning General Representation of 12-Lead ECG with a Joint-Embedding Predictive Architecture". They are listed under Related on this page.

Cite

APA

MIMIC-IV-ECG [Data set]. (n.d.). physionet. https://doi.org/10.13026/4nqg-sb35

BibTeX

@misc{mimicivecgmimicivecg,
  title         = {{MIMIC-IV-ECG}},
  howpublished  = {physionet},
  doi           = {10.13026/4nqg-sb35}
}

Built from the hub record. Check it against the publisher before submitting.

Cite the ChatPPG record

Cite the dated snapshot 2026-10 for a fixed, reproducible version. Please also cite the original publications listed above.

APA

ChatPPG. (2026). MIMIC-IV-ECG: dataset record (Version 2026-10) [Data set]. ChatPPG Research Hub. https://chatppg.com/research/datasets/mimic-iv-ecg

BibTeX
@misc{chatppg_dataset_mimic_iv_ecg,
  author       = {{ChatPPG}},
  title        = {{MIMIC-IV-ECG: dataset record}},
  year         = {2026},
  month        = oct,
  version      = {2026-10},
  howpublished = {\url{https://chatppg.com/research/datasets/mimic-iv-ecg}},
  note         = {ChatPPG Research Hub, Snapshot 2026-10, https://chatppg.com/research/snapshots/2026-10}
}
CITATION.cff
cff-version: 1.2.0
message: "If you use this resource, please cite it as below."
type: dataset
title: "MIMIC-IV-ECG: dataset record"
authors:
  - name: "ChatPPG"
url: "https://chatppg.com/research/datasets/mimic-iv-ecg"
repository-artifact: "https://chatppg.com/research/snapshots/2026-10"
version: "2026-10"
date-released: "2026-10-27"

History

  1. Record updated

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