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<title>MIT-BIH Arrhythmia Database Directory (Foreword)</title>





  
  

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<a href="mitdbdir.htm"><h1 align=center>MIT-BIH Arrhythmia Database Directory





  
  

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</h1></a>





  
  

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<p>





  
  

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<b>Next:</b> <a href="intro.htm">Introduction</a>





  
  

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<b>Up:</b> <a href="mitdbdir.htm#toc">Contents</a>





  
  

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<a name="foreword"><h1>Foreword [from the first edition]</h1></a>





  
  

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<p>





  
  

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For a number of years our group has been investigating methods for real-time





  
  

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ECG rhythm analysis.  In the course of this work, we have developed an





  
  

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extensive annotated digital ECG database.  The database has been enormously





  
  

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helpful to us in algorithm development and evaluation.  The creation of this





  
  

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resource required a major effort, and was funded, in part, by both government





  
  

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and industry.  We feel it is highly desirable to make this database available





  
  

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to other academic and industrial groups, and hence have prepared it for





  
  

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distribution.  This catalog contains detailed descriptions of the database





  
  

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tapes.





  
  

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<p>





  
  

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We acknowledge with gratitude the many dedicated hours of work which





  
  

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went into this project on the part of cardiologists, Holter technicians,





  
  

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laboratory assistants, and engineers in our laboratories at MIT and at





  
  

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Beth Israel Hospital.  We also acknowledge the help of our colleagues at





  
  

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Washington University, St. Louis (particularly Russell Hermes) in





  
  

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assuring a compatible data format.  We especially wish to recognize:





  
  

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<ul>





  
  

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<li>





  
  

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<i>Paul Schluter</i>, who did the original design and implementation of the





  
  

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database.





  
  

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<li>





  
  

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<i>Scott Peterson</i>, who supervised the detailed data selection,





  
  

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digitization, annotation, and editing at Beth Israel Hospital.  He also





  
  

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contributed substantially to the development of software needed for using the





  
  

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database in our evaluation.





  
  

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<li>





  
  

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<i>George Moody</i>, who converted the database to a format compatible with





  
  

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that used by the AHA database, and who contributed in a major way to the





  
  

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directory.





  
  

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<li>





  
  

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<i>Larry Siegal</i>, who contributed to development of the waveform editor





  
  

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system.





  
  

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<li>





  
  

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<i>Cheryl Jackson</i>, who was responsible for most of the detailed





  
  

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transcription of cardiologist annotations, the comparison and quality control





  
  

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functions, and who assembled the final manuscript for the directory.





  
  

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<li>





  
  

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<i>Diane Perry</i>, who as chief technician in the Arrhythmia Laboratory helped





  
  

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to identify suitable data, and who helped in the annotation process.





  
  

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<li>





  
  

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The group of physicians who helped with the difficult task of beat-by-beat





  
  

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annotation of the ECGs:





  
  

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Dr. Esmerey Acarturk, Dr. John Aumiller, Dr. Sidney Blake, Dr. Alvin





  
  

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Blaustein, Dr. Chester Conrad, Dr. Gary Heller, Dr. Michael Malagold,





  
  

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Dr. Roger Mark, and Dr. Candice Miklozek.





  
  

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</ul>





  
  

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<p>





  
  

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Roger Mark<br>





  
  

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Walter Olson<br>





  
  

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<br>





  
  

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Cambridge, Massachusetts<br>





  
  

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September, 1980<br>





  
  

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<hr>





  
  

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<h2>Notes on the second edition</h2>





  
  

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<p>





  
  

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During the eight years since we first published this book, nearly one hundred





  
  

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academic and industrial research groups worldwide have used the MIT-BIH





  
  

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Arrhythmia Database.  We thank these organizations for their support.





  
  

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<p>





  
  

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In addition to those listed above, we also wish to recognize the





  
  

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contributions of:





  
  

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<ul>





  
  

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<li>





  
  

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<i>Joe Mietus</i>, who handled correspondence as well as production and





  
  

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distribution of the database from the Beth Israel Hospital, and who analyzed





  
  

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the mechanical sources of analog tape wow and flutter.





  
  

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<li>





  
  

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<i>Ted Baker</i>, who helped in the first ``port'' of the database from our





  
  

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homebrew 8080-based systems.





  
  

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</ul>





  
  

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<p>





  
  

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In lieu of reprinting the first edition of this volume, we have made use of





  
  

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modern printing technology to produce a far more readable and complete record





  
  

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of the contents of the database.  





  
  

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<p>





  
  

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In June, 1987, the Association for the Advancement of Medical Instrumentation





  
  

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published its <i>Recommended Practice for Testing and Reporting





  
  

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Performance Results of Ventricular Arrhythmia Detection Algorithms</i>





  
  

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(AAMI ECAR-1987), which may be obtained from AAMI, 3330 Washington Boulevard,





  
  

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Suite 400, Arlington, VA 22201.





  
  

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The MIT-BIH and AHA Databases provide developers and evaluators of arrhythmia





  
  

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detectors with standard test data;  the AAMI Recommended Practice provides





  
  

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guidelines for using these databases in a standard way, and for describing





  
  

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detector performance in a manner that facilitates comparisons between





  
  

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detectors.





  
  

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We urge all users of our database to follow the AAMI recommendations when





  
  

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preparing performance statistics for publication.





  
  

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<p>





  
  

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A package of C-language software for using the MIT-BIH and AHA Databases





  
  

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is available from MIT.  The package





  
  

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includes programs for plotting ECGs with annotations, sampling rate





  
  

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conversion, and beat-by-beat comparison of annotation files following the





  
  

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AAMI recommended practice, as well as a variety of other useful programs.





  
  

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All the programs access the database via a common library of subroutines,





  
  

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which are also provided as part of the package and which may be used with





  
  

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user programs.





  
  

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<p>





  
  

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We have made several other sets of ECG recordings available, including





  
  

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specialized databases for ventricular fibrillation, atrial fibrillation,





  
  

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and ST segment changes.  These databases are not annotated beat-by-beat.





  
  

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<p>





  
  

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George Moody<br>





  
  

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Roger Mark<br>





  
  

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<br>





  
  

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Cambridge, Massachusetts<br>





  
  

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August, 1988





  
  

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<hr>





  
  

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<h2>Notes on the third edition</h2>





  
  

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<p>





  
  

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Since the publication of the second edition, the database has been made





  
  

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available in CD-ROM format.  Continued strong interest in the database has made





  
  

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it possible to prepare a second edition of the CD-ROM and a third edition of





  
  

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this book.  The CD-ROM includes the additional specialized databases mentioned





  
  

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above, and the second edition of the CD-ROM also contains the software





  
  

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package mentioned above.





  
  

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<p>





  
  

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Compatible databases of ECGs and other physiologic signals are beginning to





  
  

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appear.  Of particular interest to users of our database is the European ST-T





  
  

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Database, which consists of ninety two-hour ECG recordings with beats, rhythms,





  
  

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and signal quality annotated as in the MIT-BIH Arrhythmia Database, and with





  
  

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additional annotations to indicate ST and T-wave morphology changes.  For





  
  

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information, write to: CNR Institute of Clinical Physiology, Computer





  
  

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Laboratory, via Trieste, 41, 56100 Pisa, Italy.





  
  

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<p>





  
  

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I wish to thank all of those who have supported this project over these years,





  
  

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especially Roger Mark, who has guided it from its inception in 1975.





  
  

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<p>





  
  

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George Moody<br>





  
  

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<br>





  
  

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Cambridge, Massachusetts<br>





  
  

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July, 1992





  
  

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<hr>





  
  

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<h2>Notes on this HTML edition</h2>





  
  

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<p>





  
  

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Although the MIT-BIH Arrhythmia Database has been available for almost 17 years





  
  

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at this writing, it remains in demand among researchers and instrument





  
  

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developers.  This edition of the Directory accompanies the third edition of





  
  

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the MIT-BIH Arrhythmia Database CD-ROM;  it is the first to appear in hypertext





  
  

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form.





  
  

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<p>





  
  

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If you have installed Netscape on your system, and have set up as a Netscape





  
  

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helper application either <tt>wavescript</tt> (see <a





  
  

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href="/physiotools/wug/node45.htm"><i>Controlling <em>WAVE</em> from a web





  
  

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browser</i></a>) or <tt>wvscript</tt> (see <a





  
  

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href="/physiotools/wview/index.shtml"><i>Setting up WVSCRIPT</i></a>), you may





  
  

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follow the links from this guide to the records.





  
  

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<p>





  
  

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Once again, I wish to thank everyone who has supported this project through





  
  

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their continued interest in this database.





  
  

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<P><ADDRESS>





  
  

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<I><A HREF="mailto:george@mit.edu">George B. Moody (<tt>george@mit.edu</tt>)</A></ADDRESS></I><BR>





  
  

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24 May 1997 (Links updated 11 November 1999 for PhysioNet)





  
  

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