 Gastrointestinal Electrical Mapping Suite (GEMS) is a software package for the analysis of high-resolution (multi-electrode) gastrointestinal electrical recordings. See "What can GEMS do?" for a list of software functions or download the user manual. This site contains links for the software download and 'living' documentation for the system describing its use. We are happy to distribute GEMS to academic groups without charge, please see our 'Download' page if interested. However, we do ask that the software is properly cited, and that you notify us of your published outcomes for our bibliography. GEMS Software Demonstration:
GEMS News
*19 Jan, 2011 The GEMS User Manual is now available from this site - see the Downloads page. *11 Jan, 2011. "An improved method for the estimation and visualization of velocity fields from gastric high-resolution electrical mapping", a paper describing methods used in GEMS, has been published in IEEE Transactions of Biomedical Engineering. Refer bibliography. *14 Nov, 2011. A GEMS demonstration video has been uploaded to allow visitors to experience several GEMS features in action. Thanks to Nira P. * 14 Nov, 2011. GEMS video examples link added, displaying example high-resolution mapping outputs achieved using the GEMS animation feature. * 1 Sept, 2011. Dr. Rita Yassi, who has made an outstanding contribution to GEMS development, has left for a position at Orion Health. Good luck Rita and thanks for all your work on GEMS! * 25 Aug, 2011. GEMS v1.5 released (internally): see release notes. * 24 Aug, 2011. "High-resolution spatial analysis of slow wave initiation and conduction in porcine gastric dysrhythmia", a paper using GEMS, has been published in Neurogastroenterology & Motility, and received an editorial focus by Dr K. Koch entitled "The Electrifying Stomach". * 27 June, 2011. GEMS v1.3 released: see release notes. * 25 July, 2011 A paper describing GEMS has been submitted, outlining the software, its utilities and features, and with screenshots: Yassi R, O'Grady G, Paskaranandavadivel N, Du P, Angeli TR, Cheng LK, Pullan AJ, Erickson JE. The Gastic Electrical Mapping Suite (GEMS): Software for analyzing and visualizing gastrointestinal multi-electrode recordings. In Submission 2011. * 20 June, 2011. Papers describing new GEMS features will be presented at the IEEE EMBS Conference, Boston 2011. Details have been added to the bibliography. * 19 May, 2011 The second experimental paper employing GEMS has been accepted in Neurogastroenterol Motil. Details in bibliography. * 18 April, 2011 GEMS v1.2 released. Please refer to the Release Notes for a list of updated features, and fixed bugs. * 25 Mar, 2011 GEMS v1.1 released. Please refer to the Release Notes for a list of updated features, and fixed bugs. * 21 Feb, 2011 GEMS v1.0 released. Please refer to the Release Notes for a list of updated features, and fixed bugs. * 11 Feb, 2011 GEMS v0.9 released. Please refer to the Release Notes for a list of updated features, and fixed bugs. * 9 Feb, 2011 An Electrodes page has been added to this site, describing flexible printed circuit board (PCB) electrodes used in clinical HR mapping. * 4 Feb, 2011 GEMS v0.8 released. Includes improved velocity and amplitude algorithms and marks can now be added in manual cluster mode. New filtering and baseline removal methods have also been implemented. * 26 Jan, 2011 The first experimental paper employing GEMS has been published in Physiological Measurement. Details in bibliography. * 12 Jan, 2011 GEMS v0.6 has been released; see release notes. * 8 Jan, 2011 A paper describing the REGROUPS algorithm for slow wave clustering, and its validation, has been published by Erickson et al. in the Jan. edition of Annals of Biomedical Engineering. See bibilography for full details. Copyright © Auckland UniServices Ltd and Jonathan C Erickson 2010-11. We thank the American Society of Neurogastroenterology and Motility (ANMS), the NZ Health Research Council, and the NIH for funding the researchers who have contributed to this work. |
