Navigation Links
Dangerous arrhythmia analyzed in a heartbeat
Date:9/1/2011

Just one second, one heartbeat.

That's what is needed for a new, noninvasive functional imaging technology to record data for locating the source in the heart of a dangerous cardiac arrhythmia called ventricular tachycardia (VT).

VT is an abnormal, fast beating of the heart, which, if ignored, can lead to ventricular fibrillation, which causes some 400,000 cases of sudden death yearly in the United States alone.

The technique, developed by a Washington University in St. Louis scientist, is called Electrocardiographic Imaging (ECGI). It combines computerized tomography (CT) with 250 electrocardiograms recorded by electrodes placed on a vest across a patient's torso to map the source and pattern of VT in the heart and determine the kind of VT irregularity.

Using a special algorithm, ECGI can generate movies of the distinctive VT excitation waves, radiating like the wake caused by a pebble dropped into a pool, or rotating like a tornado, from recordings of multiple heartbeats.

While a wealth of information can be deduced from ECGI analysis of just one heartbeat, multiple heartbeats up to minutes long are often imaged to reveal even more about the nature of the arrhythmia.

Yoram Rudy, PhD, the Fred Saigh Distinguished Professor of Engineering, professor of biomedical engineering and of medicine and director of the Cardiac Bioelectricity and Arrhythmia Center (CBAC) at WUSTL, developed ECGI, first publishing on the technique in 2004.

Now, publishing in the Aug. 31, 2011, issue of Science Translational Medicine, Rudy and his collaborators in the Washington University departments of biomedical engineering and medicine, report the first systematic study of 25 cardiology patients with VT using ECGI to map noninvasively, beat by beat, the mechanisms and processes of VT in humans.

Co-authors WUSTL's Yong Wang, PhD, postdoctoral research associate in radiology who was a PhD student in Rudy's biomed
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Risky Business: New Survey Suggests Many Americans Live Dangerously, Even When They Say They Arent Risk Takers
2. Decontaminating dangerous drywall
3. U of C scientist offers better ways to engineer Earths climate to prevent dangerous global warming
4. Student innovation at Rensselaer holds key to safer remote detection of dangerous materials
5. In the pursuit of dangerous clumps
6. FDA Approves Ranexa(R) for First Line Anti Anginal Use and Adds New Claims for Reduction of Ventricular Arrhythmias, Bradycardia, New Atrial Fibrillation and HbA1c
7. Global bioterrorism threat analyzed for world animal health office
8. Atrial Fibrillation Month - StopAfib.org Announces September Focus on Life-Threatening Irregular Heartbeat
9. Boston Scientific to Donate Cardiac Rhythm Management Devices to Heartbeat International for Implantation in Needy Patients
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dangerous arrhythmia analyzed in a heartbeat
(Date:7/29/2014)... 2014 Genera Energy Inc. ... innovation and supply chain advancements, has announced the ... Energy Grange™ and Supply ASSURE™. Both systems ... testing aimed at consolidating and simplifying the entire ... farmers and feedstock end users. , “Through the ...
(Date:7/29/2014)... July 29, 2014 Quorum Review ... has been awarded accreditation by the International ... its Lean Six Sigma Deployment Program. The citation ... improve performance. , Quorum’s Lean Six Sigma program ... Deployment Program designation. The designation is a public ...
(Date:7/29/2014)... July 29, 2014 The first product ... next generation approach to robotics. What sets Droidles completely ... pending technology that allows them to communicate, share code ... over the internet. , “The invention is the system,” ... little Droidles a life of their own, both physically ...
(Date:7/29/2014)... Dr. Jason Wendel – recipient of a Regional Top ... Top 10 Plastic Surgeon Specialists for Nashville, TN – has ... line includes a Hydration Booster, Retexturing Night Crème, and Anti-aging ... a younger, more radiant appearance while protecting them from the ... is why at Dr. J. J. Wendel Plastic Surgery, we ...
Breaking Biology Technology:Genera Energy Introduces Proprietary Feedstock Management Systems 2Genera Energy Introduces Proprietary Feedstock Management Systems 3Genera Energy Introduces Proprietary Feedstock Management Systems 4Quorum Review IRB Accredited by IASSC for Lean Six Sigma Deployment Program 2Quorum Review IRB Accredited by IASSC for Lean Six Sigma Deployment Program 3Droidles, the Social Network of Robots and Open Source Platform for the Internet of Things, Launches for Crowd Funding on IndieGoGo.com 2Dr. J. J. Wendel Launches New Line of Skin Care Products 2
... , , Udo Reischl and Christian Gerdes, Institute of ... , ... virus (EBV) infection is currently based , ... years the specificity and sensitivity of serodiagnostic ...
... Introduction , ... or probes in genetic analysis. Quality control of these preparations ... electrophoresis or HPLC, but these , methods may ... not provide desired quantitative precision or automation. Capillary electrophorsis , ...
... Guy C. Le Breton, Department of Pharmacology,University of Illinois at Chicago, College of ... Pharmacology M/C 868, University of Illinois at Chicago, Chicago, IL 60612.,E-mail: jturek1@icarus.uic.edu , ... Introduction , ... receptor, in addition to its , ...
Cached Biology Technology:Preparative SDS-PAGE Electrophoresis of a Recombinant Epstein-Barr Virus Encoded Protein and Its Application in Serodiagnostic Test Systems, Rev C 2Preparative SDS-PAGE Electrophoresis of a Recombinant Epstein-Barr Virus Encoded Protein and Its Application in Serodiagnostic Test Systems, Rev C 3Preparative SDS-PAGE Electrophoresis of a Recombinant Epstein-Barr Virus Encoded Protein and Its Application in Serodiagnostic Test Systems, Rev C 4Preparative SDS-PAGE Electrophoresis of a Recombinant Epstein-Barr Virus Encoded Protein and Its Application in Serodiagnostic Test Systems, Rev C 5Preparative SDS-PAGE Electrophoresis of a Recombinant Epstein-Barr Virus Encoded Protein and Its Application in Serodiagnostic Test Systems, Rev C 6Preparative SDS-PAGE Electrophoresis of a Recombinant Epstein-Barr Virus Encoded Protein and Its Application in Serodiagnostic Test Systems, Rev C 7Preparative SDS-PAGE Electrophoresis of a Recombinant Epstein-Barr Virus Encoded Protein and Its Application in Serodiagnostic Test Systems, Rev C 8Oligonucleotide Purity Analysis by Capillary Electrophoresis 2Oligonucleotide Purity Analysis by Capillary Electrophoresis 3Isolation of Low Molecular Weight Digestion Products of the Human Platelet Thromboxane A2 Receptor, Rev A 2Isolation of Low Molecular Weight Digestion Products of the Human Platelet Thromboxane A2 Receptor, Rev A 3Isolation of Low Molecular Weight Digestion Products of the Human Platelet Thromboxane A2 Receptor, Rev A 4Isolation of Low Molecular Weight Digestion Products of the Human Platelet Thromboxane A2 Receptor, Rev A 5
(Date:7/28/2014)... Kansas He calls himself the bug hunter, but ... can only be found and identified with special methods ... the Kansas State Veterinary Diagnostic Laboratory at Kansas State ... discoveries, porcine enterovirus G, which is an important find ... virus in cells, but didn,t know what it was," ...
(Date:7/28/2014)... Rice University researchers are using magnetic beads and DNA ... be used as microscale models for polymer macromolecules. , ... as theory in the 1950s, can be made as ... of interest to materials scientists who study the basic ... chemical and biomolecular engineer Sibani Lisa Biswal and graduate ...
(Date:7/28/2014)... A powerful new tool that can help advance ... green and renewable bioenergy, has been developed by ... Joint BioEnergy Institute (JBEI), a multi-institutional partnership led ... JBEI researchers have developed an assay that enables ... nucleotide sugar transporters, critical components in the biosynthesis ...
Breaking Biology News(10 mins):Researcher using next-generation sequencing to rapidly identify pathogens 2Researcher using next-generation sequencing to rapidly identify pathogens 3Seeing is bead-lieving 2How sweet it is 2How sweet it is 3
... ability of the brain to recover from such injury as ... that "talk" to one another using the brain chemical acetylcholine, ... Neural repair Group at UCSD have discovered. Their finding in ... by leading to the development of drugs or other treatments ...
... membrane. The membrane is studded with many hundreds of ... and out of the cell. Such membrane proteins also ... make the nervous system work. Scientists at Stockholm University ... proteins in the enteric bacterium Escherichia coli. Their study ...
... expression must be standardized among laboratories and across platforms ... genome exploration, an Oregon Health & Science University researcher ... as gene chips, risk having their research results called ... in the OHSU School of Medicine. , Spencer, director ...
Cached Biology News:Brain-injury rehabilitation depends on acetylcholine circuitry 2Study: 'homemade' gene expression technology unreliable 2Study: 'homemade' gene expression technology unreliable 3
... materials necessary for the isolation and preparation of ... Kit Components: Erythrocyte ... containing 220 mL of buffered ammonium chloride. (NH ... No. 5113) One bottle containing 220 mL of ...
nuclear cap binding protein subunit 1, 80kDa, mRNA...
Protein Phosphorylation...
MOUSE ANTI S. NEWPORT SALMONELLA HADAR...
Biology Products: