Name: QT Database
Published: Nov. 16, 1999
License: https://opendatacommons.org/licenses/by/index.html

Database Open Access

Published: Nov. 16, 1999. Version: 1.0.0

QT Database (Nov. 16, 1999, midnight)

The QT Database is now on-line, with over 100 fifteen-minute two-lead ECG recordings (many excerpted from other databases), with onset, peak, and end markers for P, QRS, T, and (where present) U waves of from 30 to 50 selected beats in each recording.

When using this resource, please cite the original publication:

Laguna P, Mark RG, Goldberger AL, Moody GB. A Database for Evaluation of Algorithms for Measurement of QT and Other Waveform Intervals in the ECG. Computers in Cardiology 24:673-676 (1997).

Please include the standard citation for PhysioNet: (show more options)
Goldberger, A., Amaral, L., Glass, L., Hausdorff, J., Ivanov, P. C., Mark, R., ... & Stanley, H. E. (2000). PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation [Online]. 101 (23), pp. e215–e220.

APA	Goldberger, A., Amaral, L., Glass, L., Hausdorff, J., Ivanov, P. C., Mark, R., ... & Stanley, H. E. (2000). PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation [Online]. 101 (23), pp. e215–e220.
MLA	Goldberger, A., et al. "PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation [Online]. 101 (23), pp. e215–e220." (2000).
CHICAGO	Goldberger, A., L. Amaral, L. Glass, J. Hausdorff, P. C. Ivanov, R. Mark, J. E. Mietus, G. B. Moody, C. K. Peng, and H. E. Stanley. "PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation [Online]. 101 (23), pp. e215–e220." (2000).
HARVARD	Goldberger, A., Amaral, L., Glass, L., Hausdorff, J., Ivanov, P.C., Mark, R., Mietus, J.E., Moody, G.B., Peng, C.K. and Stanley, H.E., 2000. PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation [Online]. 101 (23), pp. e215–e220.
VANCOUVER	Goldberger A, Amaral L, Glass L, Hausdorff J, Ivanov PC, Mark R, Mietus JE, Moody GB, Peng CK, Stanley HE. PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation [Online]. 101 (23), pp. e215–e220.

Abstract

Over 100 fifteen-minute two-lead ECG recordings (many excerpted from other databases), with onset, peak, and end markers for P, QRS, T, and (where present) U waves of from 30 to 50 selected beats in each recording.

Data Description

Each of the 105 records consists of a (text) header file, a (binary) signal file, and up to 9 (binary) annotation files, identified by suffix:

Suffix	Meaning
.hea	header file, describing signal file contents and format
.dat	signal file
.atr	reference beat annotations from original database (not available in all cases)
.man	reference beat annotations for selected beats only
.q1c	manually determined waveform boundary measurements for selected beats (annotator 1 only -- second pass)
.q2c	manually determined waveform boundary measurements for selected beats (annotator 2 only -- second pass; available for only 11 records)
.qt1	manually determined waveform boundary measurements for selected beats (annotator 1 only -- first pass)
.qt2	manually determined waveform boundary measurements for selected beats (annotator 2 only -- first pass; available for only 11 records)
.pu	automatically determined waveform boundary measurements for all beats (based on both signals)
.pu0	automatically determined waveform boundary measurements for all beats (based on signal 0 only)
.pu1	automatically determined waveform boundary measurements for all beats (based on signal 1 only)

For further details about these files, see the referenced paper.

Access

Access Policy:
Anyone can access the files, as long as they conform to the terms of the specified license.

License (for files):
Open Data Commons Attribution License v1.0

Discovery

DOI (version 1.0.0):
https://doi.org/10.13026/C24K53

Topics:
ecg

Corresponding Author

You must be logged in to view the contact information.

Files

Total uncompressed size: 82.9 MB.

Access the files

Download the ZIP file (83.1 MB)
Access the files using the Google Cloud Storage Browser here. Login with a Google account is required.
Access the data using the Google Cloud command line tools (please refer to the gsutil documentation for guidance):
```
gsutil -m -u YOUR_PROJECT_ID cp -r gs://qtdb-1.0.0.physionet.org DESTINATION
```

Download the files using your terminal:

wget -r -N -c -np https://physionet.org/files/qtdb/1.0.0/

Download the files using AWS command line tools:

aws s3 sync --no-sign-request s3://physionet-open/qtdb/1.0.0/ DESTINATION

Visualize waveforms

Folder Navigation:

Name	Size	Modified
Parent Directory
Image1.png (download)	819 B	2000-02-09
Image10.png (download)	448 B	2000-02-09
Image2.png (download)	831 B	2000-02-09
Image3.png (download)	603 B	2000-02-09
Image4.png (download)	640 B	2000-02-09
Image5.png (download)	565 B	2000-02-09
Image6.png (download)	542 B	2000-02-09
Image7.png (download)	749 B	2000-02-09
Image8.png (download)	674 B	2000-02-09
Image9.png (download)	455 B	2000-02-09
index.shtml (download)	1.9 KB	2012-01-05
wflimits.html (download)	23.3 KB	2000-07-24

QT Database

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