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Intracardiac Atrial Fibrillation Database

When referencing this material, please 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).

This database consists of endocardial recordings from the right atria of 8 patients in atrial fibrillation or flutter. A decapolar catheter with 2-5-2mm spacing (7mm spacing between bipoles) was placed in four separate regions of the heart. In each region, the 5 bipolar signals were recorded along with 3 surface ECG leads. Data were digitized at 1kHz. Catheter bipoles are labeled (distal to proximal) CS12, CS34, ..., CS90. Regions are:

Anterior view of heart model Catheter placement for SVC Catheter placement for TVA Catheter placement for IVC Catheter placement for AFW

The figure at left shows approximate catheter placement in a model heart (click on any panel at left, or on the links below, for a larger view):

A)
Anterior view of a heart model, with the interior of the right atrium (RA) and right ventricle (RV) exposed.
B)
Catheter placement for SVC, where the distal tip is just inferior to the annulus of the superior vena cava, and the catheter is against the posterior wall of the atrium. Eight poles (black marks) of the decapolar catheter model (copper wire) are visible.
C)
Placement for TVA, where the distal tip is on the tricuspid valve annulus and the electrodes are against the septal wall.
D)
Placement for IVC, with the proximal catheter end just superior to the annulus of the inferior vena cava, and the electrodes against the posterior wall.
E)
Placement for AFW, with the catheter against the atrial free wall (which is hinged open here).

The database includes a set of four records (one for each placement) for each of the eight patients. The name of each record identifies the patient (iaf1, iaf2, ..., iaf8) and the placement of the catheter (svc, ivc, tva, afw). Each record contains eight signals (intracardiac: CS12 - CS90, or ECG: I, II, V1, aVF). Each signal is sampled at 1 kHz with 14-bit resolution; the signal amplitudes are uncalibrated.

The atrial free wall (afw) records are considerably longer than those for the other regions, and include the effects of drug delivery and washout. During these records, patients iaf1, iaf2, iaf6, and iaf8 received adenosine, and patients iaf3, iaf4, iaf5, and iaf7 received Isuprel; the drug, dosage, and delivery time(s) are noted in the .hea files of the afw records. Note that these times are approximate, based on clinical notes taken during the procedure.

The .qrs annotation files were produced using sqrs, and have not been corrected; they may be useful for beginning a study of these recordings.

Acknowledgements

We wish to thank Jon Peterson and Dave Kynor of Creare, Inc. for their generous contribution of these recordings and for the notes and figures above.

Icon  Name                    Last modified      Size  Description
[DIR] Parent Directory - [   ] ANNOTATORS 01-Mar-2003 11:04 31 list of annotators [   ] MD5SUMS 12-Jul-2005 22:13 4.5K [   ] RECORDS 01-Mar-2003 08:57 288 list of record names [   ] SHA1SUMS 12-Jul-2005 22:13 5.4K [   ] SHA256SUMS 18-Sep-2007 12:37 7.8K [DIR] figures/ 01-Mar-2003 09:48 - [   ] iaf1_afw.dat 01-Mar-2003 08:56 2.4M digitized signal(s) [   ] iaf1_afw.hea 01-Mar-2003 08:56 537 header file [   ] iaf1_afw.qrs 01-Mar-2003 10:59 494 unaudited annotations [   ] iaf1_ivc.dat 01-Mar-2003 08:56 805K digitized signal(s) [   ] iaf1_ivc.hea 01-Mar-2003 08:56 495 header file [   ] iaf1_ivc.qrs 01-Mar-2003 10:59 154 unaudited annotations [   ] iaf1_svc.dat 01-Mar-2003 08:56 898K digitized signal(s) [   ] iaf1_svc.hea 01-Mar-2003 08:56 501 header file [   ] iaf1_svc.qrs 01-Mar-2003 10:59 204 unaudited annotations [   ] iaf1_tva.dat 01-Mar-2003 08:56 930K digitized signal(s) [   ] iaf1_tva.hea 01-Mar-2003 08:56 499 header file [   ] iaf1_tva.qrs 01-Mar-2003 10:59 170 unaudited annotations [   ] iaf2_afw.dat 01-Mar-2003 08:56 3.5M digitized signal(s) [   ] iaf2_afw.hea 01-Mar-2003 08:56 543 header file [   ] iaf2_afw.qrs 01-Mar-2003 10:59 856 unaudited annotations [   ] iaf2_ivc.dat 01-Mar-2003 08:56 1.0M digitized signal(s) [   ] iaf2_ivc.hea 01-Mar-2003 08:56 507 header file [   ] iaf2_ivc.qrs 01-Mar-2003 10:59 234 unaudited annotations [   ] iaf2_svc.dat 01-Mar-2003 08:56 852K digitized signal(s) [   ] iaf2_svc.hea 01-Mar-2003 08:56 511 header file [   ] iaf2_svc.qrs 01-Mar-2003 10:59 194 unaudited annotations [   ] iaf2_tva.dat 01-Mar-2003 08:56 1.0M digitized signal(s) [   ] iaf2_tva.hea 01-Mar-2003 08:56 510 header file [   ] iaf2_tva.qrs 01-Mar-2003 10:59 224 unaudited annotations [   ] iaf3_afw.dat 01-Mar-2003 08:56 12M digitized signal(s) [   ] iaf3_afw.hea 01-Mar-2003 08:56 534 header file [   ] iaf3_afw.qrs 01-Mar-2003 10:59 2.5K unaudited annotations [   ] iaf3_ivc.dat 01-Mar-2003 08:56 1.0M digitized signal(s) [   ] iaf3_ivc.hea 01-Mar-2003 08:56 514 header file [   ] iaf3_ivc.qrs 01-Mar-2003 10:59 230 unaudited annotations [   ] iaf3_svc.dat 01-Mar-2003 08:56 1.5M digitized signal(s) [   ] iaf3_svc.hea 01-Mar-2003 08:56 509 header file [   ] iaf3_svc.qrs 01-Mar-2003 10:59 308 unaudited annotations [   ] iaf3_tva.dat 01-Mar-2003 08:56 750K digitized signal(s) [   ] iaf3_tva.hea 01-Mar-2003 08:56 508 header file [   ] iaf3_tva.qrs 01-Mar-2003 10:59 144 unaudited annotations [   ] iaf4_afw.dat 01-Mar-2003 08:56 21M digitized signal(s) [   ] iaf4_afw.hea 01-Mar-2003 08:56 540 header file [   ] iaf4_afw.qrs 01-Mar-2003 10:59 7.1K unaudited annotations [   ] iaf4_ivc.dat 01-Mar-2003 08:56 948K digitized signal(s) [   ] iaf4_ivc.hea 01-Mar-2003 08:56 506 header file [   ] iaf4_ivc.qrs 01-Mar-2003 10:59 258 unaudited annotations [   ] iaf4_svc.dat 01-Mar-2003 08:56 906K digitized signal(s) [   ] iaf4_svc.hea 01-Mar-2003 08:56 502 header file [   ] iaf4_svc.qrs 01-Mar-2003 10:59 234 unaudited annotations [   ] iaf4_tva.dat 01-Mar-2003 08:56 1.0M digitized signal(s) [   ] iaf4_tva.hea 01-Mar-2003 08:56 506 header file [   ] iaf4_tva.qrs 01-Mar-2003 10:59 250 unaudited annotations [   ] iaf5_afw.dat 01-Mar-2003 08:56 12M digitized signal(s) [   ] iaf5_afw.hea 01-Mar-2003 08:56 527 header file [   ] iaf5_afw.qrs 01-Mar-2003 10:59 3.2K unaudited annotations [   ] iaf5_ivc.dat 01-Mar-2003 08:56 1.0M digitized signal(s) [   ] iaf5_ivc.hea 01-Mar-2003 08:56 482 header file [   ] iaf5_ivc.qrs 01-Mar-2003 10:59 322 unaudited annotations [   ] iaf5_svc.dat 01-Mar-2003 08:56 2.8M digitized signal(s) [   ] iaf5_svc.hea 01-Mar-2003 08:56 491 header file [   ] iaf5_svc.qrs 01-Mar-2003 10:59 826 unaudited annotations [   ] iaf5_tva.dat 01-Mar-2003 08:56 820K digitized signal(s) [   ] iaf5_tva.hea 01-Mar-2003 08:56 482 header file [   ] iaf5_tva.qrs 01-Mar-2003 10:59 288 unaudited annotations [   ] iaf6_afw.dat 01-Mar-2003 08:56 5.5M digitized signal(s) [   ] iaf6_afw.hea 01-Mar-2003 08:56 544 header file [   ] iaf6_afw.qrs 01-Mar-2003 10:59 1.5K unaudited annotations [   ] iaf6_ivc.dat 01-Mar-2003 08:56 906K digitized signal(s) [   ] iaf6_ivc.hea 01-Mar-2003 08:56 511 header file [   ] iaf6_ivc.qrs 01-Mar-2003 10:59 250 unaudited annotations [   ] iaf6_svc.dat 01-Mar-2003 08:56 766K digitized signal(s) [   ] iaf6_svc.hea 01-Mar-2003 08:56 510 header file [   ] iaf6_svc.qrs 01-Mar-2003 10:59 222 unaudited annotations [   ] iaf6_tva.dat 01-Mar-2003 08:56 852K digitized signal(s) [   ] iaf6_tva.hea 01-Mar-2003 08:56 508 header file [   ] iaf6_tva.qrs 01-Mar-2003 10:59 272 unaudited annotations [   ] iaf7_afw.dat 01-Mar-2003 08:56 10M digitized signal(s) [   ] iaf7_afw.hea 01-Mar-2003 08:56 529 header file [   ] iaf7_afw.qrs 01-Mar-2003 10:59 3.2K unaudited annotations [   ] iaf7_ivc.dat 01-Mar-2003 08:56 1.7M digitized signal(s) [   ] iaf7_ivc.hea 01-Mar-2003 08:56 497 header file [   ] iaf7_ivc.qrs 01-Mar-2003 10:59 570 unaudited annotations [   ] iaf7_svc.dat 01-Mar-2003 08:56 2.2M digitized signal(s) [   ] iaf7_svc.hea 01-Mar-2003 08:56 495 header file [   ] iaf7_svc.qrs 01-Mar-2003 10:59 762 unaudited annotations [   ] iaf7_tva.dat 01-Mar-2003 08:56 1.8M digitized signal(s) [   ] iaf7_tva.hea 01-Mar-2003 08:56 493 header file [   ] iaf7_tva.qrs 01-Mar-2003 10:59 702 unaudited annotations [   ] iaf8_afw.dat 01-Mar-2003 08:56 8.2M digitized signal(s) [   ] iaf8_afw.hea 01-Mar-2003 08:56 520 header file [   ] iaf8_afw.qrs 01-Mar-2003 10:59 1.6K unaudited annotations [   ] iaf8_ivc.dat 01-Mar-2003 08:56 922K digitized signal(s) [   ] iaf8_ivc.hea 01-Mar-2003 08:56 478 header file [   ] iaf8_ivc.qrs 01-Mar-2003 10:59 194 unaudited annotations [   ] iaf8_svc.dat 01-Mar-2003 08:56 805K digitized signal(s) [   ] iaf8_svc.hea 01-Mar-2003 08:56 481 header file [   ] iaf8_svc.qrs 01-Mar-2003 10:59 178 unaudited annotations [   ] iaf8_tva.dat 01-Mar-2003 08:56 875K digitized signal(s) [   ] iaf8_tva.hea 01-Mar-2003 08:56 485 header file [   ] iaf8_tva.qrs 01-Mar-2003 10:59 172 unaudited annotations
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Updated Friday, 16 December 2011 at 01:34 EST

NIBIB/NIH/NIGMS National Institute for Biomedical Imaging and Bioengineering National Institutes of Health National Institute of General Medical Sciences