2011 News

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.

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).

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.

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.

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.

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.

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.

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.

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.

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 PhysioNet. The MIMIC Importer, and detailed instructions for using it, are available on PhysioNet.

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.]

Version 1.2 of the HRV Toolkit is now available, with expanded options for graphical output.

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.

Version 2.5 of the MIMIC-II Clinical Database contains comprehensive clinical data from tens of thousands of ICU patients.

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 PhysioNet. 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.