Intracardiac Atrial Fibrillation Database

DOI for
Intracardiac Atrial Fibrillation Database:

doi:10.13026/C23S33

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).
[sample recording]

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:

SVC
The distal tip of the catheter (CS12) is close to the annulus of the superior vena cava
IVC
The proximal tip of the catheter (CS90) is close to the annulus of the inferior vena cava
TVA
The distal tip (CS12) is close to the tricuspid valve annulus
AFW
The entire catheter rests against the atrial free wall
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
[PARENTDIR] Parent Directory - [   ] ANNOTATORS 2003-03-02 00:04 31 list of annotators [   ] DOI 2015-09-22 01:00 19 [TXT] HEADER.shtml 2015-10-08 22:13 5.1K [   ] MD5SUMS 2005-07-13 10:13 4.5K [   ] RECORDS 2003-03-01 21:57 288 list of record names [   ] SHA1SUMS 2005-07-13 10:13 5.4K [   ] SHA256SUMS 2007-09-19 00:37 7.8K [DIR] figures/ 2003-03-01 22:48 - [   ] iaf1_afw.dat 2003-03-01 21:56 2.4M digitized signal(s) [   ] iaf1_afw.hea 2003-03-01 21:56 537 header file [   ] iaf1_afw.qrs 2003-03-01 23:59 494 unaudited annotations [   ] iaf1_ivc.dat 2003-03-01 21:56 805K digitized signal(s) [   ] iaf1_ivc.hea 2003-03-01 21:56 495 header file [   ] iaf1_ivc.qrs 2003-03-01 23:59 154 unaudited annotations [   ] iaf1_svc.dat 2003-03-01 21:56 898K digitized signal(s) [   ] iaf1_svc.hea 2003-03-01 21:56 501 header file [   ] iaf1_svc.qrs 2003-03-01 23:59 204 unaudited annotations [   ] iaf1_tva.dat 2003-03-01 21:56 930K digitized signal(s) [   ] iaf1_tva.hea 2003-03-01 21:56 499 header file [   ] iaf1_tva.qrs 2003-03-01 23:59 170 unaudited annotations [   ] iaf2_afw.dat 2003-03-01 21:56 3.5M digitized signal(s) [   ] iaf2_afw.hea 2003-03-01 21:56 543 header file [   ] iaf2_afw.qrs 2003-03-01 23:59 856 unaudited annotations [   ] iaf2_ivc.dat 2003-03-01 21:56 1.0M digitized signal(s) [   ] iaf2_ivc.hea 2003-03-01 21:56 507 header file [   ] iaf2_ivc.qrs 2003-03-01 23:59 234 unaudited annotations [   ] iaf2_svc.dat 2003-03-01 21:56 852K digitized signal(s) [   ] iaf2_svc.hea 2003-03-01 21:56 511 header file [   ] iaf2_svc.qrs 2003-03-01 23:59 194 unaudited annotations [   ] iaf2_tva.dat 2003-03-01 21:56 1.0M digitized signal(s) [   ] iaf2_tva.hea 2003-03-01 21:56 510 header file [   ] iaf2_tva.qrs 2003-03-01 23:59 224 unaudited annotations [   ] iaf3_afw.dat 2003-03-01 21:56 12M digitized signal(s) [   ] iaf3_afw.hea 2003-03-01 21:56 534 header file [   ] iaf3_afw.qrs 2003-03-01 23:59 2.5K unaudited annotations [   ] iaf3_ivc.dat 2003-03-01 21:56 1.0M digitized signal(s) [   ] iaf3_ivc.hea 2003-03-01 21:56 514 header file [   ] iaf3_ivc.qrs 2003-03-01 23:59 230 unaudited annotations [   ] iaf3_svc.dat 2003-03-01 21:56 1.5M digitized signal(s) [   ] iaf3_svc.hea 2003-03-01 21:56 509 header file [   ] iaf3_svc.qrs 2003-03-01 23:59 308 unaudited annotations [   ] iaf3_tva.dat 2003-03-01 21:56 750K digitized signal(s) [   ] iaf3_tva.hea 2003-03-01 21:56 508 header file [   ] iaf3_tva.qrs 2003-03-01 23:59 144 unaudited annotations [   ] iaf4_afw.dat 2003-03-01 21:56 21M digitized signal(s) [   ] iaf4_afw.hea 2003-03-01 21:56 540 header file [   ] iaf4_afw.qrs 2003-03-01 23:59 7.1K unaudited annotations [   ] iaf4_ivc.dat 2003-03-01 21:56 948K digitized signal(s) [   ] iaf4_ivc.hea 2003-03-01 21:56 506 header file [   ] iaf4_ivc.qrs 2003-03-01 23:59 258 unaudited annotations [   ] iaf4_svc.dat 2003-03-01 21:56 906K digitized signal(s) [   ] iaf4_svc.hea 2003-03-01 21:56 502 header file [   ] iaf4_svc.qrs 2003-03-01 23:59 234 unaudited annotations [   ] iaf4_tva.dat 2003-03-01 21:56 1.0M digitized signal(s) [   ] iaf4_tva.hea 2003-03-01 21:56 506 header file [   ] iaf4_tva.qrs 2003-03-01 23:59 250 unaudited annotations [   ] iaf5_afw.dat 2003-03-01 21:56 12M digitized signal(s) [   ] iaf5_afw.hea 2003-03-01 21:56 527 header file [   ] iaf5_afw.qrs 2003-03-01 23:59 3.2K unaudited annotations [   ] iaf5_ivc.dat 2003-03-01 21:56 1.0M digitized signal(s) [   ] iaf5_ivc.hea 2003-03-01 21:56 482 header file [   ] iaf5_ivc.qrs 2003-03-01 23:59 322 unaudited annotations [   ] iaf5_svc.dat 2003-03-01 21:56 2.8M digitized signal(s) [   ] iaf5_svc.hea 2003-03-01 21:56 491 header file [   ] iaf5_svc.qrs 2003-03-01 23:59 826 unaudited annotations [   ] iaf5_tva.dat 2003-03-01 21:56 820K digitized signal(s) [   ] iaf5_tva.hea 2003-03-01 21:56 482 header file [   ] iaf5_tva.qrs 2003-03-01 23:59 288 unaudited annotations [   ] iaf6_afw.dat 2003-03-01 21:56 5.5M digitized signal(s) [   ] iaf6_afw.hea 2003-03-01 21:56 544 header file [   ] iaf6_afw.qrs 2003-03-01 23:59 1.5K unaudited annotations [   ] iaf6_ivc.dat 2003-03-01 21:56 906K digitized signal(s) [   ] iaf6_ivc.hea 2003-03-01 21:56 511 header file [   ] iaf6_ivc.qrs 2003-03-01 23:59 250 unaudited annotations [   ] iaf6_svc.dat 2003-03-01 21:56 766K digitized signal(s) [   ] iaf6_svc.hea 2003-03-01 21:56 510 header file [   ] iaf6_svc.qrs 2003-03-01 23:59 222 unaudited annotations [   ] iaf6_tva.dat 2003-03-01 21:56 852K digitized signal(s) [   ] iaf6_tva.hea 2003-03-01 21:56 508 header file [   ] iaf6_tva.qrs 2003-03-01 23:59 272 unaudited annotations [   ] iaf7_afw.dat 2003-03-01 21:56 10M digitized signal(s) [   ] iaf7_afw.hea 2003-03-01 21:56 529 header file [   ] iaf7_afw.qrs 2003-03-01 23:59 3.2K unaudited annotations [   ] iaf7_ivc.dat 2003-03-01 21:56 1.7M digitized signal(s) [   ] iaf7_ivc.hea 2003-03-01 21:56 497 header file [   ] iaf7_ivc.qrs 2003-03-01 23:59 570 unaudited annotations [   ] iaf7_svc.dat 2003-03-01 21:56 2.2M digitized signal(s) [   ] iaf7_svc.hea 2003-03-01 21:56 495 header file [   ] iaf7_svc.qrs 2003-03-01 23:59 762 unaudited annotations [   ] iaf7_tva.dat 2003-03-01 21:56 1.8M digitized signal(s) [   ] iaf7_tva.hea 2003-03-01 21:56 493 header file [   ] iaf7_tva.qrs 2003-03-01 23:59 702 unaudited annotations [   ] iaf8_afw.dat 2003-03-01 21:56 8.2M digitized signal(s) [   ] iaf8_afw.hea 2003-03-01 21:56 520 header file [   ] iaf8_afw.qrs 2003-03-01 23:59 1.6K unaudited annotations [   ] iaf8_ivc.dat 2003-03-01 21:56 922K digitized signal(s) [   ] iaf8_ivc.hea 2003-03-01 21:56 478 header file [   ] iaf8_ivc.qrs 2003-03-01 23:59 194 unaudited annotations [   ] iaf8_svc.dat 2003-03-01 21:56 805K digitized signal(s) [   ] iaf8_svc.hea 2003-03-01 21:56 481 header file [   ] iaf8_svc.qrs 2003-03-01 23:59 178 unaudited annotations [   ] iaf8_tva.dat 2003-03-01 21:56 875K digitized signal(s) [   ] iaf8_tva.hea 2003-03-01 21:56 485 header file [   ] iaf8_tva.qrs 2003-03-01 23:59 172 unaudited annotations [TXT] local.css 2015-10-29 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