PhysioNet/Computing in Cardiology Challenge 2012|
Ongoing, January-September 2012
This year's challenge focuses on methods for predicting mortality of
ICU patients, using a rich set of physiologic and clinical variables
collected from 12,000 patients. Phase 1 of the challenge drew
participation from 39 individuals and teams.
Phase 2 is now open, until 25 August.
Physiological Measurement focuses on work of Challenge 2011
17 August 2012 16:30:00 EDT
Inspired by the PhysioNet/CinC Challenge 2011
(Improving the quality of ECGs collected using mobile phones), the
journal Physiological Measurement has devoted its September 2012 focus
issue to the subject of signal quality in cardiorespiratory monitoring, with
eleven articles on this topic, including nine written by Challenge
Abdominal and Direct Fetal ECG Database
9 August 2012 18:30:00 EDT
PhysioBank has received a contribution of five-minute multichannel fetal ECG
recordings, with cardiologist-verified annotations of all fetal heart beats,
from five women in labor, from the Medical University of Silesia, Poland. Each
record includes four signals from the maternal abdomen and a simultaneously
recorded reference direct fetal ECG from the fetal scalp; all signals are
sampled at 1 KHz with 16-bit resolution.
Fetal Distress and the OB-1 Database
3 August 2012 13:00:00 EDT
The creators of the OB-1 Database of fetal ECGs seek collaborators in
their PhysioNetWorks project to complete the database and to use it to
investigate improved diagnoses of fetal distress. A sample recording
from the database is now available in PhysioBank, while construction
of the remainder (including more than 100 additional recordings, with
detailed accompanying clinical information) is in progress on PhysioNetWorks.
CAP Sleep Database
26 July 2012 17:20:00 EDT
The Cyclic Alternating Pattern (CAP) is a periodic EEG activity occurring
during NREM sleep, and abnormal amounts of CAP are associated with a variety of
sleep-related disorders. The CAP Sleep Database is a collection of 108
polysomnographic recordings contributed by the Sleep Disorders Center of the
Ospedale Maggiore of Parma, Italy. Each record includes 3 or more EEG signals
together with EOG, chin and tibial EMG, airflow, respiratory effort, SaO2, and
ECG signals, and reference sleep stage and CAP annotations, This database is
intended to provide a useful number of carefully annotated examples of CAP in a
representative variety of pathophysiologic contexts, for development and
evaluation of automated CAP analyzers, as well as to support basic studies of
the dynamics of CAP.
New annotations for the Long-Term AF
23 July 2012 18:45:00 EDT
A complete set of over 9 million reference beat and rhythm annotations
for the Long-Term AF Database has been contributed by MEDICALgorithmics (Warsaw,
Poland). The Long-Term AF Database, a collection of 84 long-term ECG
recordings (typically 24 to 25 hours each) of subjects with paroxysmal
or sustained atrial fibrillation, was contributed to PhysioBank in
2008 by Steven Swiryn and his colleagues at Northwestern University.
Michael Tadeusiak of MEDICALgorithmics coordinated the annotation
development as a PhysioNetWorks project.
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