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:10/22/2014)... 2014 Shimadzu Scientific Instruments introduces its ... for the pain management and clinical markets. The software ... review by allowing users to highlight and review results ... QuantAnalytics allows analysts to filter results by group or ... by eliminating the need to sift through analytes of ...
(Date:10/22/2014)... Cranford, NJ (PRWEB) October 22, 2014 ... technologies and services – has been working with a ... Health and New Haven Farms Community Farming Collaborative to ... iPad-based ePRO solution. The study, which started in ... Wellness program that provides participants weekly exposure to and ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 Grace Century, ... and healthcare projects, announces the addition of Dr. ... to its advisory team. Dr. Siddiqui will provide further ... , A graduate of University College Medical School ... degreed in medicine in 2001. With further certification as ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 According ... Market by Service Type (Consulting, Integration, Deployment & ... by Deployment Model (Public, Private, Others (Hybrid & ... MarketsandMarkets, defines and segments the Cloud Professional Services ... and forecasting of revenues. It also identifies the ...
Breaking Biology Technology:Shimadzu Releases QuantAnalytics Open Access LCMS Software Package for Clinical Applications 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3Dr. Yousef Siddiqui joins the Grace Century Advisory Team 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5
... Madison, Wis. The next alternative fuel source for ... the basement of a restaurant. , ,The Wisconsin Department ... grant will be awarded to the Madison Environmental Group ... Madison Environmental will be working with the restaurant chain ...
... and excursions relevant to the world of Midwest technology ... week, the Midwest Venture Summit was held in Chicago ... were sponsored by the Chicago chapter of the Keiretsu ... registered to attend, an unofficial count estimated that half ...
... VCT image of the carotid arteries that supply blood to ... University of Michigan Health System are using the system to ... Business Wire. Milwaukee GE Healthcare ... that give physicians a non-invasive view of the heart and ...
Cached Biology Technology:Environmental group works to run cars on Culver's old frying oil 2Environmental group works to run cars on Culver's old frying oil 3Midwest Venture Summit disappoints; Cato grades Midwest governors 2Midwest Venture Summit disappoints; Cato grades Midwest governors 3Midwest Venture Summit disappoints; Cato grades Midwest governors 4GE Healthcare launches new medical scanner, places another in hospitals 2GE Healthcare launches new medical scanner, places another in hospitals 3
(Date:10/16/2014)... Post-menopausal women experienced improvements in vaginal atrophy, with ... bleeding, after 12 weeks of daily 10 milligram ... nutritional supplement previously shown to help relieve certain ... study reported in a poster at the North ... , "These data documented improved vaginal epithelium, without ...
(Date:10/15/2014)... book ,Models of Life, is a non-traditional biophysics textbook ... The book is a journey of discovery into biological ... life and biological regulation. It is about how our ... communication between the billions of cells in an organism. ... relationships between principles, which can be found on both ...
(Date:10/15/2014)... Oct. 15, 2014 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market releases photos and video ... Square on Monday October 13 th . ... Tunnel and angel investor Mr. Chad A. Verdi ... of NXT-ID thanked his investors and employees "for their work and ...
Breaking Biology News(10 mins):S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2New book about life as seen from physics 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3
... researchers from the National Institute of Standards and ... of Maryland has made nano-sized sensors that detect ... pesticides and other productsthat offer several advantages over ... and the ability to detect one or several ...
... and freshwater cichlids in the western branch of the ... surroundinga thriving ecosystem around Lake Kivu. Natural hazards ... borders Rwanda and the Democratic Republic of Congo have ... highland forests for fuel use and subsistence farming has ...
... TOBAGOFlower color in plants is determined by pigments such ... the ultimate color displayed is dependent not only on ... cell shape, presence of metal ions, and pH, among ... color has allowed plant geneticists to engineer new hues, ...
Cached Biology News:Nanowire-based sensors offer improved detection of volatile organic compounds 2Benchmarking a slice of Africa; preserving biodiversity through science 2Benchmarking a slice of Africa; preserving biodiversity through science 3Benchmarking a slice of Africa; preserving biodiversity through science 4Benchmarking a slice of Africa; preserving biodiversity through science 5Engineering blue-hued flowers 2
... system automates the denaturation and hybridization steps ... convenience for clinical and research personnel. The ... of sample types, is easy to use, ... 50% while ensuring overall precision and accuracy ...
... fluorescent nucleic acid dye which binds only ... nuclear counterstain, propidium iodide stains the nucleus ... The fluorescent red color provides excellent contrast ... FITC, Cy2 or AMCA. Propidium Iodide ...
... Mouse RAW 264. 7 cells were cultured ... harvested at the log phase of growth. ... native forms, cells were fixed in acetone-methanol. ... mm) adhesive coated slide, with each wells surface ...
... Mouse P815 cells were cultured in DMEM ... In order to keep the antigens in ... The cells are arrayed on a 12-well ... surface specifically treated to enhance cellular attachment and ...
Biology Products: