|WFDB Software Package||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. Latest update: Friday, 22 February 2013 (summary here).|
|29 April 2013||PhysioNet is one of four NIH-supported initiatives highlighted in a recent White House blog entry ("Big Data is a Big Deal for Biomedical Research") about accelerating the pace of discovery through the use of Big Data. (The others are the Human Connectome Project, the BRAIN Initiative, and the Cancer Genome Atlas.)|
|2 April 2013||The open test set B (100 one-minute noninvasive fetal ECG recordings) for Challenge 2013 is now available, together with a supplement of 50 additional recordings in training set A.|
|21 February 2013||This year's PhysioNet/Computing in Cardiology Challenge invites participants to develop software capable of detecting fetal QRS complexes in multichannel noninvasive ECG recordings, making accurate estimates of fetal heart rate, RR intervals, and QT intervals. An annotated training set of 25 one-minute recordings is available now; a sample entry, software for scoring, and test recordings will be available shortly.|
|4 October 2012||Open access is now available for the first time 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, it 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.|
|31 August 2012||Final scores in the PhysioNet/CinC Challenge 2012 have now been posted. Participants will present their work on the challenge at CinC 2012 in Krakow, 9-12 September.|
|17 August 2012||Inspired by the PhysioNet/CinC Challenge 2011 (Improving the quality of ECGs collected using mobile phones), the journal Physiological Measurement has devoted a focus issue [2012 Sept;33(9)] to the subject of signal quality in cardiorespiratory monitoring, with eleven articles on this topic, including nine written by Challenge participants.|
|9 August 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 of the Abdominal and Direct Fetal ECG Database 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.|
|3 August 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.|
|26 July 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 from 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.|
|23 July 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.|
|26 June 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.|
|27 Mar 2012||
The PhysioNet/CinC Challenge 2012 focuses on
predicting mortality in ICU patients. Sample entries, test frameworks,
scoring functions, and large sets of training and test data are available now.
Update (1 June): Phase 1 of the challenge drew participation from 39 individuals and teams. Phase 2 is now open, until 25 August.
|16 Mar 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, our new tutorial, Creating PhysioBank (WFDB-compatible) Records, should get you started on creating PhysioBank-compatible records from your data.|
|14 March 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.|
|6 February 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 (14 March update: see above). 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.
Update (14 March): The pbindex software package is now available; it contains the sources for the software that generates the PhysioBank Index.
|29 January 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.|
|24 January 2012||Our new tutorial, Variability vs. complexity, introduces the study of complex variability, especially in the context of physiology and medicine.|
|20 January 2012||The PhysioNet/Computing in Cardiology Challenge 2012 is underway. 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.|
|13 January 2012||The MIMIC II Waveform Database Matched Subset is now available. It contains 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.|
|6 January 2012||The MGH/MF Waveform Database Patient Guide is now available. It 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.|