Dataset

Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020)

Chapman University / Shaoxing People's Hospital figshare release: 10-second 12-lead ECGs at 500 Hz from 10,646 patients, labelled with 11 rhythms and 67 other conditions.

At a glance
Type
Dataset
Host
Not reported
Licence
Not reported
Access
Not reported
Subjects
Not reported
Signals
ECG
PPG sites
None
Setting
Clinical
Wrist
Not reported
Raw waveforms
Not reported
Models
Updated
Nov 5, 2026

Original description

This newly inaugurated research database for 12-lead electrocardiogram signals was created under the auspices of Chapman University and Shaoxing People's Hospital (Shaoxing Hospital Zhejiang University School of Medicine) and aims at enabling the scientific community in conducting new studies on arrhythmia and other cardiovascular conditions. Certain types of arrhythmias, such as atrial fibrillation, have a pronounced negative impact on public health, quality of life, and medical expenditures. As a non-invasive test, the long term ECG monitoring is a major and vital diagnostic tool for detecting these conditions. However, such a practice generates a considerable amount of data that analyzes of which require considerable time and effort by human experts. Advancement of modern machine learning and statistical tools can be trained on high quality, large data to achieve high levels of automated diagnostic accuracy. Thus, we collected and disseminated this novel database that contains 12-lead ECGs of 10,646 patients with 500 Hz sampling rate that features 11 common rhythms and 67 additional cardiovascular conditions, all labeled by professional experts. For each subject, a sample size of 10 seconds (12-dimension 5000 samples) was available. The dataset can be used to design, compare, and fine tune new and classical statistical and machine learning techniques in studies focused on arrhythmia and other cardiovascular conditions.

Citation:Zheng, J., Chu, H., Struppa, D. et al. Optimal Multi-Stage Arrhythmia Classification Approach. Sci Rep 10, 2898 (2020). https://doi.org/10.1038/s41598-020-59821-7

Zheng, J., Zhang, J., Danioko, S. et al. A 12-lead electrocardiogram database for arrhythmia research covering more than 10,000 patients. Sci Data 7, 48 (2020). https://doi.org/10.1038/s41597-020-0386-x

Verbatim fromDataCite· Licence: https://creativecommons.org/licenses/by/4.0/legalcode

Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020): ChatPPG research summary card

How it works

How Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020) works: Devices & body sites → Signals recorded → TasksDevices & body sites: None (PPG site). Signals recorded: Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020), signals ECG. Tasks: ECG rhythm; AF / rhythm.Devices & body sitesNone: PPG siteNonePPG siteSignals recordedChapman-Shaoxing 12-lead ECG…ECGTasksECG rhythmECG rhythmAF / rhythmAF / rhythm
Device roles
Clinical reference (ECG)

Leaderboard rows· 1

All leaderboards
TaskDatasetMetricValueRank
ECG rhythm classificationChapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020)Macro-F1 ↑96.86#1 / 1

Papers and models using this dataset· 2

Cite this dataset

Cite this dataset with the fields recorded here. Check it against the publisher before submitting.

Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020) [Data set]. (n.d.). https://doi.org/10.6084/m9.figshare.c.4560497.v2
@misc{chapmanfigsharechapmanshaoxing,
  title         = {{Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020)}},
  doi           = {10.6084/m9.figshare.c.4560497.v2}
}

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). Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020): dataset record (Version 2026-10) [Data set]. ChatPPG Research Hub. https://chatppg.com/research/datasets/chapman-figshare

BibTeX
@misc{chatppg_dataset_chapman_figshare,
  author       = {{ChatPPG}},
  title        = {{Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020): dataset record}},
  year         = {2026},
  month        = nov,
  version      = {2026-10},
  howpublished = {\url{https://chatppg.com/research/datasets/chapman-figshare}},
  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: "Chapman-Shaoxing 12-lead ECG database, figshare release (Zheng 2020): dataset record"
authors:
  - name: "ChatPPG"
url: "https://chatppg.com/research/datasets/chapman-figshare"
repository-artifact: "https://chatppg.com/research/snapshots/2026-10"
version: "2026-10"
date-released: "2026-11-05"

History

  1. Record updated