http://physionet.org/feed.xml News from the research resource for complex physiologic signals en-us 29 April 2013 11:40:00 EDT 29 April 2013 11:40:00 EDT http://www.rssboard.org/rss-specification 29 April 2013 11:40:00 EDT PhysioNet is one of four NIH-supported initiatives highlighted in a recent White House blog entry 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.) http://www.whitehouse.gov/blog/2013/04/23/big-data-big-deal-biomedical-research PhysioNet 20130429.1 Challenge 2 April 2013 19:00:00 EDT 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. http://physionet.org/challenge/2013/ PhysioNet 20130402.2 Challenge 21 February 2013 14:00:00 EST This year's 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. http://physionet.org/challenge/2013/ PhysioNet 20130221.1 Challenge 4 October 2012 21:00:00 EDT 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. http://physionet.org/mimic2/demo/ PhysioNet 20121004.1 Data 31 August 2012 00:45:00 EDT 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. http://physionet.org/challenge/2012/top-scores.shtml PhysioNet 20120831.1 Challenge 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 participants. http://iopscience.iop.org/0967-3334/33/9 PhysioNet 20120817.1 Challenge 13 August 2012 20:00:00 EDT 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. http://physionet.org/physiotools/wfdb.shtml PhysioNet 20120813.1 Software 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. http://physionet.org/physiobank/database/adfecgdb/ PhysioNet 20120809.1 Data 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. http://physionet.org/physiobank/database/ob1db/ PhysioNet 20120803.1 Data 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. http://physionet.org/physiobank/database/capslpdb/ PhysioNet 20120726.1 Data 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. http://physionet.org/physiobank/database/ltafdb/ PhysioNet 20120723.1 Data 26 June 2012 15:30:00 EDT 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. http://physionet.org/physiobank/database/bpssrat/ PhysioNet 20120626.1 Data 4 June 2012 18:40:00 EDT 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. http://physionet.org/challenge/2012 PhysioNet 20120604.1 Challenge 13 May 2012 16:15:00 EDT 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. http://physionet.org/physiotools/wfdb.shtml PhysioNet 20120513.1 Software 27 Mar 2012 02:00:00 EDT 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. http://physionet.org/challenge/2012 PhysioNet 20120327.1 Challenge 16 Mar 2012 15:00:00 EDT 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. http://physionet.org/tutorials/creating-records.shtml PhysioNet 20120316.1 Tutorials 14 Mar 2012 18:00:00 EDT 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. http://physionet.org/cgi-bin/pbsearch?help_on=on PhysioNet 20120314.1 Data Mining 6 Feb 2012 16:15:00 EST 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. http://physionet.org/physiobank/database/pbi/ PhysioNet 20120206.1 Tutorials 29 Jan 2012 23:45:00 EST 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. http://physionet.org/tutorials/ PhysioNet 20120129.3 Tutorials 24 Jan 2012 19:00:00 EST The most recent in our series of PhysioNet tutorials introduces the study of complex variability, especially in the context of physiology and medicine. http://physionet.org/tutorials/cv/ PhysioNet 20120124.1 Tutorials 20 Jan 2012 21:00:00 EST 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. http://physionet.org/challenge/2012/ PhysioNet 20120120.3 Challenges 13 Jan 2012 23:10:00 EST 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. http://physionet.org/physiobank/database/mimic2wdb/matched/ PhysioNet 20120113.1 Data 6 Jan 2012 11:30:00 EST 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. http://physionet.org/physiobank/database/mghdb/patient-guide.shtml PhysioNet 20120106.1 Data 16 Nov 2011 15:00:00 EST 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. http://physionet.org/physiotools/wfdb.shtml PhysioNet 20111116.1 Software 26 Aug 2011 14:00:00 EDT Version 3 of the MIMIC II Waveform Database has been publicly released. Version 3 contains 21,422 patient records and is more than 4 times the size of version 2. Using enhanced data recovery techniques, the original raw data dumps have been reprocessed to extract many records that were previously unreadable, and additional raw data dumps collected since the previous release were also processed to obtain many more records. Also available to qualified investigators via PhysioNetWorks is version 2.6 of the companion MIMIC II Clinical Database, containing data for 32,536 subjects (5880 new since version 2.5) and additional data types (including demographics, procedure (CPT) codes, diagnosis-related groups (DRG codes), Elixhauser comorbidity scores, microbiology test results, and LOINC coding for lab tests). http://physionet.org/mimic2/ PhysioNet 20110826.1 Data 5 Aug 2011 09:00:00 EDT The final deadline for submitting entries to the PhysioNet/CinC Challenge 2011 has passed. Congratulations and thanks to all who participated. Final scores and ranks are available for event 1 now. http://physionet.org/challenge/2011/ PhysioNet 20110805.1 Challenges 22 Apr 2011 23:45:00 EDT Participants in event 1 of the PhysioNet/CinC Challenge 2011 may submit preliminary entries now. If you plan to participate in any of this year's Challenge events, please submit a preliminary event 1 entry no later than noon GMT on Saturday, 30 April 2011. You will be able to revise your entry, and to submit an entry for events 2 and 3, until the final deadline of noon GMT on Monday, 1 August 2011. http://physionet.org/challenge/2011/ PhysioNet 20110422.1 Challenges 19 Apr 2011 20:45:00 EDT ECGs to be classified in events 1 and 2 of the PhysioNet/CinC Challenge 2011 are now available as individual files or as a tarball. http://physionet.org/physiobank/database/challenge/2011/ PhysioNet 20110419.1 Challenges 12 Mar 2011 17:30:00 EST 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. http://physionet.org/physiotools/wfdb.shtml PhysioNet 20110312.1 Software 7 Mar 2011 02:30:00 EST Participants with all levels of experience are invited to help develop the data set for the 12th annual PhysioNet/CinC Challenge by grading ECGs. Login to PhysioNetWorks and follow the link from your PhysioNetWorks home page to "Diagnostic ECG Annotations" to get started. An award fund of US$2000 will be divided among participants who have contributed in this way. http://physionet.org/challenge/2011/#annotation-project PhysioNet 20110307.1 Challenges 25 Feb 2011 15:30:00 EST The 2011 PhysioNet/Computing in Cardiology Challenge, now underway, aims to develop an efficient algorithm able to run in near real-time within a mobile phone, that can provide useful feedback in the process of acquiring a diagnostically useful ECG recording. http://physionet.org/challenge/2011/ PhysioNet 20110225.1 Challenges 20 Feb 2011 15:30:00 EST PhysioNet welcomes a new mirror, http://physionet.nlm.nih.gov/, hosted at the National Library of Medicine in Bethesda, MD. PhysioNet mirrors around the world provide reliable alternate access to PhysioNet for visitors whose connections to the main servers may be slow. http://physionet.nlm.nih.gov/ PhysioNet 20110220.1 Resources 13 Feb 2011 12:00:00 EST The MIMIC Importer is software for automating the creation of a PostgreSQL relational database from the MIMIC II Clinical Database flat files that can be downloaded from PhysioNetWorks. The MIMIC Importer, and detailed instructions for using it, are available from the MIMIC II Clinical Database pages on PhysioNetWorks. http://physionet.org/mimic2/mimic2_access.shtml PhysioNet 20110213.1 Software 9 Feb 2011 13:00:00 EST Machine-generated beat and alarm annotations for over 1500 ICU patient records from the MIMIC II Waveform Database are available to qualified PhysioNetWorks members who agree to review and provide corrections for a subset of them. [The link for this article requires a PhysioNetWorks login to view.] https://physionet.org/works/MIMICIIWaveformDatabaseAnnotations/ PhysioNet 20110209.1 Data 9 Feb 2011 06:20:00 EST Version 1.2 of the HRV Toolkit is now available, with expanded options for graphical output. http://physionet.org/tutorials/hrv-toolkit/ PhysioNet 20110209 Software 3 Feb 2011 12:00:00 EST A database of evoked auditory response in healthy subjects across a wide range of stimulus levels has been contributed to PhysioBank. The data include 24-bit recordings of auditory brain stem response (ABR) and otoacoustic emissions (OAE) signals, and 32-bit computed average responses. http://physionet.org/physiobank/database/earndb/ PhysioNet 20110203 Data 22 Jan 2011 12:00:00 EST Version 2.5 of the MIMIC II Clinical Database contains comprehensive clinical data from tens of thousands of ICU patients. The MIMIC II Clinical Database can be downloaded from PhysioNetWorks or explored online on the web site of the MIMIC Project. http://physionet.org/mimic2/mimic2_clinical_overview.shtml PhysioNet 20110122 Data 21 Jan 2011 12:00:00 EST The Term-Preterm EHG Database, a collection of electrohysterogram (EHG: uterine EMG) recordings obtained at the University Medical Centre Ljubljana from 300 pregnant women, has been contributed to PhysioBank and is now available. The collection includes recordings from 262 women who had full-term pregnancies and 38 whose pregnancies ended prematurely; 162 of the recordings were made before the 26th week of gestation, and 138 later. http://physionet.org/physiobank/database/tpehgdb/ PhysioNet 20110121 Data