Computers in Cardiology Challenge 2004 Top Scores (Final)

Over twenty teams participated in this year’s Challenge, on the topic of predicting if (or when) an episode of atrial fibrillation will self-terminate.

During September’s Computers in Cardiology conference, we presented four awards to eligible participants in this year’s challenge. In each event, an overall best award went to the top-scoring team, and a “best open source” award went to the top-scoring team among those who contributed the source code for their entries. The overall award in event 1 was presented to Dieter Hayn and his colleagues, and the overall award in event 2, as well as the “best open source” awards in both events, were won by Federico Cantini and his colleagues.

The challenge organizers congratulate the top scorers in Challenge 2004.
Left to right: Steve Swiryn, George Moody, Simona Petrutiu, Federico Cantini, Dieter Hayn.

We wish to thank all those who participated in the challenge and in the lively and illuminating discussions during the scientific sessions of Computers in Cardiology. Brief descriptions of the methods used can be viewed by following the links in the tables below to abstracts submitted by the entrants for presentation at Computers in Cardiology 2004.

Event 1 (sustained vs. self-terminating AF)

The maximum possible score in event 1 was 30. The top scorers were:

Score	Entrant
29 (97%)*	S Petrutiu, AV Sahakian, J Ng, S Swiryn Northwestern University, Evanston, Illinois, USA
28 (93%)	D Hayn, K Edegger, D Scherr, P Lercher, B Rotman, W Klein, G Schreier ARC Seibersdorf Research GmbH Medical University of Graz, Austria
27 (90%)	F Cantini, F Conforti, M Varanini, F Chiarugi, G Vrouchos CNR Institute of Clinical Physiology, Pisa, Italy ICS-FORTH, Heraklion, Greece ICU-CCU Dept,. Venizeleio-Pananeio Hospital, Heraklion, Greece [Software]
27 (90%)	M Lemay, Z Ihara, JM Vesin, L Kappenberger EPFL - CHUV, Lausanne, Switzerland
27 (90%)	F Castells, C Mora, R Ruiz, JJ Rieta, J Millet, C Sanchez, S Morell Universidad Politécnica de Valencia Hospital Clinico Universitario de Valencia Universidaa de Castilla la Mancha, Cuenca, Spain
27 (90%)	F Nilsson, M Stridh, A Bollmann, L Sörnmo Lund University, Sweden Good Samaritan Hospital and Harbor-UCLA Medical Center, Los Angeles, California, USA

Event 2 (AF terminating in one minute vs. immediately)

The maximum possible score in event 1 was 20. The top scorers were:

Score	Entrant
20 (100%)*	S Petrutiu, AV Sahakian, J Ng, S Swiryn Northwestern University, Evanston, Illinois, USA
18 (90%)	F Cantini, F Conforti, M Varanini, F Chiarugi, G Vrouchos CNR Institute of Clinical Physiology, Pisa, Italy ICS-FORTH, Heraklion, Greece ICU-CCU Dept,. Venizeleio-Pananeio Hospital, Heraklion, Greece [Software]
18 (90%)	B Logan, J Healey Hewlett Packard Laboratories, Cambridge, MA, USA
16 (80%)	Q Xi, S Shkurovich St. Jude Medical, Sylmar, CA, USA
16 (80%)	D Hayn, K Edegger, D Scherr, P Lercher, B Rotman, W Klein, G Schreier ARC Seibersdorf Research GmbH Medical University of Graz, Austria

* The top-scoring entry in each of the two events came from the research group of Steven Swiryn of Northwestern University, who had contributed the data used in the challenge. Although these entries were thus ineligible for an award, Simona Petrutiu and her coauthors did not have access to any information beyond what was available to all of the participants, and we wish to recognize her extraordinary achievement in achieving a near-perfect score in event 1 and a perfect score in event 2.

Four additional teams of participants also described their approaches to the challenge:

• AN Esgiar, PK Chakravorty
  University of Al Tahadi, Sirte, Libya
• P Langley, J Allen, EJ Bowers, MJ Drinnan, EV Garcia, ST King, T Olbrich, AJ Sims, FE Smith, J Wild, D Zheng, A Murray
  Medical Physics Dept, Freeman Hospital, Newcastle upon Tyne, UK
• LT Mainardi, M Matteucci, R Sassi
  Dipartimento di Bioingegneria, Politecnico di Milano, Milano, Italy
  Dipartimento di Elettronica e Informazione, Politecnico di Milano, Milano, Italy
  Dipartimento di Tecnologie dell Informazione, Universit di Milano, Crema, Italy
• FM Roberts, RJ Povinelli
  Marquette University, Milwaukee, WI, USA

Links:

• Read about the PhysioNet/Computers in Cardiology Challenge 2004. Although the competition has ended, you may still submit your results for (unofficial) scoring.
• For additional information about the challenge, see

  GB Moody, Spontaneous Termination of Atrial Fibrillation: A Challenge from PhysioNet and Computers in Cardiology 2004. Computers in Cardiology 31, 2004.

• The correct classifications are available for event 1 and event 2. (But wait! Are you sure you don’t want to try the challenge first?)
• Read about Computers in Cardiology 2005, which will be held in Lyon, France, 25-28 September.
• Read about our previous PhysioNet/Computers in Cardiology Challenges.
• Do you have a data set that can help in creating a future challenge? Please send us your ideas!

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Supported by the National Institute of Biomedical Imaging and Bioengineering (NIBIB) under NIH grant number R01EB030362.

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