This database is described in
Petrutiu S, Sahakian AV, Swiryn S.
Abrupt changes in fibrillatory wave characteristics at the
termination of paroxysmal atrial fibrillation in humans.
Europace 9:466-470 (2007).
Please cite this publication when referencing this material, and also
include the standard citation for PhysioNet:
Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG,
Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and
PhysioNet: Components of a New Research Resource for Complex Physiologic
Signals.
Circulation 101(23):e215-e220 [Circulation Electronic Pages;
http://circ.ahajournals.org/cgi/content/full/101/23/e215];
2000 (June 13).
In addition, when referencing the atr annotations of this database,
please acknowledge their creators (MEDICALgorithmics Ltd, Warsaw, Poland;
efforts coordinated by Michal Tadeusiak).
This database includes 84 long-term ECG recordings of subjects with
paroxysmal or sustained atrial fibrillation (AF). Each record
contains two simultaneously recorded ECG signals digitized at 128 Hz
with 12-bit resolution over a 20 mV range; record durations vary but
are typically 24 to 25 hours.
Two sets of annotations are available here:
- The qrs annotations were produced by an automated
QRS detector; in these annotation files, all detected beats (including
occasional ventricular ectopic beats) are labelled N, detected artifacts
are labelled '|', and AF terminations are labelled T.
- The atr annotations were obtained by manual
review of the output of an automated ECG analysis system (see
below); in these annotation files, all detected beats are
labelled by type, and rhythm changes are also annotated (see
the summary tables for details).
The AF Termination Challenge Database
consists of 80 one-minute excerpts of a subset of these records (those
numbered 00 through 75). As a guide to selecting the excerpts, "T"
annotations were inserted manually in the qrs annotation
files of this subset of the records, to mark spontaneous terminations
of AF episodes with durations of at least one minute.
The original recordings were collected and contributed to PhysioNet by
Steven Swiryn and his colleagues at Northwestern University. They
were digitized and automatically annotated at Boston's Beth Israel
Deaconess Medical Center. Steven Swiryn and George Moody annotated
the AF terminations.
The atr annotations were developed on PhysioNetWorks and
contributed to PhysioNet by MEDICALgorithmics Ltd (Warsaw, Poland).
The recordings have been automatically annotated using
MEDICALgorithmics' PocketECG system algorithm (FDA 510(k): K112921)
and manually verified by an experienced team of MEDICALgorithmics' ECG
technicians. The reference annotation development project was
coordinated by Michal Tadeusiak.
Further reading
Segments from this database were used in:
Moody GB.
Spontaneous Termination of Atrial Fibrillation: A Challenge from
PhysioNet and Computers in Cardiology 2004, Computers in
Cardiology 31:101-104 (2004).
Name Last modified Size Description
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00.atr 23-Jul-2012 16:08 208K reference annotations
00.dat 07-Jul-2003 15:48 37M digitized signal(s)
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00.hea 23-Jul-2003 13:49 117 header file
00.qrs 24-Jul-2003 07:23 207K unaudited annotations
01.atr 23-Jul-2012 16:08 184K reference annotations
01.dat 18-Jul-2003 21:43 36M digitized signal(s)
01.hea 18-Jul-2003 21:45 119 header file
01.qrs 24-Jul-2003 07:26 175K unaudited annotations
03.atr 23-Jul-2012 16:08 181K reference annotations
03.dat 18-Jul-2003 17:58 43M digitized signal(s)
03.hea 18-Jul-2003 18:01 122 header file
03.qrs 24-Jul-2003 07:34 158K unaudited annotations
05.atr 23-Jul-2012 16:08 221K reference annotations
05.dat 18-Jul-2003 18:10 43M digitized signal(s)
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06.atr 23-Jul-2012 16:08 207K reference annotations
06.dat 18-Jul-2003 21:38 44M digitized signal(s)
06.hea 18-Jul-2003 21:38 117 header file
06.qrs 24-Jul-2003 07:42 206K unaudited annotations
07.atr 23-Jul-2012 16:08 218K reference annotations
07.dat 18-Jul-2003 18:23 45M digitized signal(s)
07.hea 18-Jul-2003 18:26 121 header file
07.qrs 24-Jul-2003 07:45 211K unaudited annotations
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08.dat 18-Jul-2003 18:11 45M digitized signal(s)
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10.dat 18-Jul-2003 16:58 45M digitized signal(s)
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100.atr 23-Jul-2012 16:08 191K reference annotations
100.dat 13-May-2005 23:45 42M digitized signal(s)
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102.dat 13-May-2005 23:45 42M digitized signal(s)
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103.atr 23-Jul-2012 16:08 328K reference annotations
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103.hea 13-May-2005 23:45 126 header file
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104.atr 23-Jul-2012 16:08 165K reference annotations
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11.atr 23-Jul-2012 16:08 200K reference annotations
11.dat 18-Jul-2003 18:32 46M digitized signal(s)
11.hea 18-Jul-2003 18:41 119 header file
11.qrs 19-Jul-2003 00:52 200K unaudited annotations
110.atr 23-Jul-2012 16:08 207K reference annotations
110.dat 13-May-2005 23:45 42M digitized signal(s)
110.hea 13-May-2005 23:45 125 header file
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74.dat 18-Jul-2003 20:36 45M digitized signal(s)
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75.atr 23-Jul-2012 16:09 248K reference annotations
75.dat 18-Jul-2003 20:38 37M digitized signal(s)
75.hea 18-Jul-2003 20:39 120 header file
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ANNOTATORS 12-Jul-2012 12:33 117 list of annotators
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MD5SUMS 23-Jul-2012 18:05 14K
RECORDS 25-Feb-2012 03:20 280 list of record names
SHA1SUMS 23-Jul-2012 18:06 16K
SHA256SUMS 23-Jul-2012 18:06 24K
tables.shtml 23-Jul-2012 17:58 39K
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