2007 News


2007

De-identification: software and test data

The MIMIC II project has contributed software for deidentification of free text in medical records, and a corpus of deidentified text that can be used for development and evaluation of deidentifcation software.

Published: Dec. 18, 2007.


2007

Papers from the PhysioNet/CinC Challenge 2007

Papers by the participants in the PhysioNet/Computers in Cardiology Challenge 2007 are now available, and the reference interpretations used to score the Challenge entries have also been posted.

Published: Dec. 4, 2007.


2007

XView toolkit updated

A new version of the XView toolkit is compatible with the most recent version of X.org's X11 libraries, allowing applications that use XView, such as WAVE and Semia, to be run on Fedora 8.

Published: Nov. 19, 2007.


2007

PhysioNet mirror kit

The PhysioNet mirror kit provides an easy way to set up a self-maintaining mirror of PhysioNet. The original mirror kit has been rewritten to provide simpler setup, faster mirror updates, and enhanced functionality for the mirrors.

Published: Nov. 19, 2007.


2007

St. Vincent's University Hospital / University College Dublin Sleep Apnea Database

The St. Vincent's University Hospital / University College Dublin Sleep Apnea Database has been contributed to PhysioBank. This database contains 25 full overnight polysomnograms with simultaneous three-channel Holter ECG, from adult subjects with suspected sleep-disordered breathing.

Published: Oct. 9, 2007.


2007

Winners of the PhysioNet/CinC Challenge 2007

We congratulate the winners of the PhysioNet / Computers in Cardiology Challenge 2007: Mohamed Mneimneh, Hamid SadAbadi, and Masood Ghasemi. Thanks to all who participated, and who contributed data and expertise to make this event possible.

Published: Oct. 3, 2007.


2007

Non-Invasive Fetal Electrocardiogram Database

The Non-Invasive Fetal Electrocardiogram Database, a series of 55 multichannel abdominal fetal ECG recordings taken from a single subject over a period of 20 weeks, has been contributed to PhysioBank. The recordings are in EDF+ format, and include two thoracic (maternal ECG) signals and three or four abdominal (maternal+fetal ECG) signals.

Published: Sept. 6, 2007.


2007

Funding from National Institutes of Health

PhysioNet begins its ninth year with new funding from two institutes of the National Institutes of Health (NIH): the National Institute of Biomedical Imaging and Bioengineering (NIBIB), and the National Institute of General Medical Sciences (NIGMS). We are deeply grateful for the support of NIBIB and NIGMS, which makes PhysioNet's continued growth possible.

Published: Sept. 1, 2007.


2007

AFVP - A Realistic Ventricular Rhythm Model During AF

AF-VP, a model for generating RR intervals in atrial fibrillation, has been contributed to PhysioNet by its authors.

Published: Aug. 9, 2007.


2007

Cardiac output estimation from arterial blood pressure waveforms

An extensive comparison of eleven previously described algorithms for cardiac output estimation from arterial blood pressure waveforms has been contributed to PhysioNet. The package includes implementations of each algorithm in Matlab, a selection of records from the MIMIC II database that contain ABP waveforms and "gold standard" thermodilution cardiac output measurements, and a comprehensive discussion of calibration techniques, evaluation methods, and rankings of the algorithms.

Published: Aug. 2, 2007.


2007

PhysioNet GSearch

If a standard PhysioNet search doesn't yield what you are looking for, try a PhysioNet GSearch (a customized version of Google's search). See the search help page for PhysioNet GSearch and other options. [Update (13 November 2007): PhysioNet GSearch is now the standard search. The original ht://Dig-based search is still available on the Advanced Search and search help pages.]

Published: Aug. 1, 2007.


2007

MIMIC II Database expanded

The storage and computational capacities of the master PhysioNet server have been upgraded following a comprehensive set of tests. The digitized signals, trends, and alarms of 2769 long-term records of the MIMIC II Database are now available thanks to the greatly expanded capacity of the new server.

Published: July 31, 2007.


2007

Long-Term ST Database expanded

The creators of the Long-Term ST Database have now contributed all of it (86 complete records) to PhysioNet. Each record is 21 to 24 hours long, and contains 2 or 3 ECG signals, annotated beat-by-beat and with respect to ST episodes, rhythm changes, and signal quality changes.

Published: June 18, 2007.


2007

Spontaneous Ventricular Tachyarrhythmia Database

The Spontaneous Ventricular Tachyarrhythmia Database (Version 1.0 from Medtronic, Inc.) contains 135 pairs of RR interval time series, recorded by implanted cardioverter defibrillators in 78 subjects. One series of each pair includes a spontaneous episode of ventricular tachycardia or ventricular fibrillation, and the other is a sample of the intrinsic (usually sinus) rhythm.

Published: May 2, 2007.


2007

CVSim

A new implementation of CVSim, a cardiovascular simulator that has been used for education and research at MIT and Harvard Medical School for over 20 years, has been contributed to PhysioNet by its authors. CVSim can be launched directly from a web browser with no installation required in most cases.

Published: March 16, 2007.


2007

PhysioNet/CinC Challenge 2007

The eighth annual PhysioNet/Computers in Cardiology Challenge has begun. This year's Challenge embraces the disciplines of both electrocardiography and (for the first time) imaging. Participants will estimate the location and extent of infarcts using ECG maps, and their estimates will be evaluated using "gold standard" measurements of gadolinium-enhanced MRI data.

Published: Jan. 20, 2007.