2012 News

First Open Access to a Large Subset of the MIMIC II Clinical Database

Oct. 4, 2012

For the first time, open access is available to a set of 4000 patient records included in the MIMIC II Clinical Database Demo, a downloadable disk image that can be run within a virtual machine or from a bootable USB flash drive or DVD. Since all of the required software, including the operating system, is pre-installed and configured, the demo is an ideal way to begin exploring the MIMIC II Clinical Database (currently including more than 32,000 patient records) on a spare PC or Intel Mac with an absolute minimum of setup time.

Read more: https://physionet.org/mimic2/demo/

Final scores in the PhysioNet/CinC Challenge 2012

Aug. 31, 2012

Final scores in the PhysioNet/CinC Challenge 2012 have now been posted. Participants will present their work on the challenge, which focuses on predicting mortality of ICU patients, at CinC 2012 in Krakow, 9-12 September.

Read more: https://physionet.org/challenge/2012/top-scores.shtml

/Physiological Measurement/ focuses on work of Challenge 2011 participants

Aug. 17, 2012

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 participants.

Read more: http://iopscience.iop.org/0967-3334/33/9

WFDB 10.5.14

Aug. 13, 2012

Over 70 open-source applications for signal processing, analysis, and more, all built on a stable and easy-to-use library that can be incorporated into your own software. This release includes direct and secure access from WFDB applications to PhysioNetWorks projects without the use of a web browser.

Read more: https://physionet.org/physiotools/wfdb.shtml

Abdominal and Direct Fetal ECG Database

Aug. 9, 2012

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.

Read more: https://physionet.org/physiobank/database/adfecgdb/

Fetal Distress and the OB-1 Database

Aug. 3, 2012

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.

Read more: https://physionet.org/physiobank/database/ob1db/

CAP Sleep Database

July 26, 2012

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.

Read more: https://physionet.org/physiobank/database/capslpdb/

New annotations for the Long-Term AF Database

July 23, 2012

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.

Read more: https://physionet.org/physiobank/database/ltafdb/

Blood Pressure in Salt-Sensitive Dahl Rats

June 26, 2012

PhysioBank has received a contribution of continuous blood pressure recordings collected for a study of baroreflex dysfunction in salt-sensitive hypertension in Dahl SS and SSBN13 rats.

Read more: https://physionet.org/physiobank/database/bpssrat/

Submit a Phase 2 Challenge Entry Now

June 4, 2012

Phase 2 of the PhysioNet/Computing in Cardiology Challenge 2012 (Predicting mortality of ICU patients) is now open, and participants may submit entries until 25 August. If you missed Phase 1, you are still welcome to participate unofficially in Phase 2.

Read more: https://physionet.org/challenge/2012

WFDB 10.5.13

May 13, 2012

Over 70 open-source applications for signal processing, analysis, and more, all built on a stable and easy-to-use library that can be incorporated into your own software. This release includes 'gqrs', a new, flexible, high sensitivity QRS detector for research, based on previously unpublished algorithms.

Read more: https://physionet.org/physiotools/wfdb.shtml

Submit a prelminary Challenge Entry (closed 25 April)

March 27, 2012

Registration for the PhysioNet/Computing in Cardiology Challenge 2012 is now open, and registered participants may submit entries. This year's challenge focuses on predicting mortality of ICU patients. Submit a preliminary entry by 25 April.

Read more: https://physionet.org/challenge/2012

Creating PhysioBank (WFDB-compatible) Records

March 16, 2012

If you have digital recordings of signals or time series, perhaps with annotations, that you would like to study using PhysioToolkit software such as that in the WFDB software package, or that you would like to contribute to PhysioBank, this tutorial should get you started on creating PhysioBank-compatible records from your data.

Read more: https://physionet.org/tutorials/creating-records.shtml

PhysioBank Record Search

March 14, 2012

Use PhysioBank Record Search in your web browser to find records in PhysioBank that share a desired set of characteristics. The search engine is integrated with the PhysioBank ATM, so that records within search results can be examined individually and marked for further study if desired. The pbsearch software package includes sources for the PhysioBank Record Search web client, the server, a command-line client, and a set of plugins.

Read more: https://physionet.org/cgi-bin/pbsearch?help_on=on

PhysioBank Index

Feb. 6, 2012

The first release of the PhysioBank Index contains essential information about all of the more than 36,000 records that can be viewed using the PhysioBank ATM. A web-based tool for searching the index is under development. Users who are comfortable using standard command-line tools can use them now, to search the index for records with desired characteristics. Our new tutorial provides guidance and examples.

Read more: https://physionet.org/physiobank/database/pbi/

New and Updated Tutorials

Jan. 29, 2012

Two new tutorials, "How to create and manage a PhysioNetWorks project" and "How to Write HTML pages for PhysioNet," aim to help members of the research community to create, collaborate on, and publish sharable data and software. Several other tutorials have been updated recently, including "A Brief Tour of PhysioNet," which now includes a demonstration of the PhysioBank ATM and an introduction to PhysioNetWorks.

Read more: https://physionet.org/tutorials/

New Variability vs. Complexity Tutorial

Jan. 24, 2012

The most recent in our series of PhysioNet tutorials introduces the study of complex variability, especially in the context of physiology and medicine.

Read more: https://physionet.org/tutorials/cv/

PhysioNet/Computing in Cardiology Challenge 2012 Opens

Jan. 20, 2012

This year's challenge focuses on methods for predicting ICU mortality, using a rich set of physiologic and clinical variables collected from 12,000 patients.

Read more: https://physionet.org/challenge/2012/

MIMIC II Waveform Database Matched Subset

Jan. 13, 2012

This collection includes 4,897 waveform records and 5,266 numerics records from the MIMIC II Waveform Database, which have been matched and time-aligned with 2,809 MIMIC II Clinical Database records.

Read more: https://physionet.org/physiobank/database/mimic2wdb/matched/

MGH/MF Waveform Database Patient Guide

Jan. 6, 2012

The guide provides additional information for each recording in the database, including (as available) age, sex, diagnoses, pertinent medical history, ECG interpretation, ventilation, a timeline of events that occurred during the recording, and additional clinical observations.

Read more: https://physionet.org/physiobank/database/mghdb/patient-guide.shtml