Navigation Links
New device uses submarine technology to diagnose stroke quickly
Date:3/29/2011

ted States and the leading cause of disability," explained Murphy. A stroke or "brain attack" occurs when a blood clot blocks an artery or a blood vessel breaks, interrupting blood flow to an area of the brain, he said. When either of these things happens, brain cells begin to die and brain damage occurs. And, stresses Murphy, "time to diagnosis is critical to improving patient outcomes; time is brain."

"The system is very simple in principle, yet it yields exceedingly rich data," said Murphy. He explained that the device's basis in submarine technology means it works to measure a patient's complex brain pulsations and to provide information on the type and location of an abnormality in many of the same ways as sonar works on submarines. Both use an array of sensors to measure movement and generate signals to be processed and analyzed, matching the signals to objects or conditions. "As sonar sorts out whales and other objects from vessels, the device sorts out cerebral abnormalities such as aneurysms, arteriovenous malformations (AVMs, an abnormal connection between veins and arteries), ischemic strokes and traumatic brain injury from normal variations in physiology," noted Murphy.

Traditionally in transcranial ultrasound, the thinner areas of the skull are used as "windows" through which ultrasound can "see" or "listen," said Murphy. This system does not rely on these "windows." It measures the movement of the skull (acceleration) to separate confounding acoustic signals from the motion created by the in-rushing blood flow in this way: blood flows into the brain during each pulse and a pressure wave emulates from the vessels outward in all directions. The wave encounters the skull and accelerates it. The device measures the acceleration and records this complex waveform with a time synchronized high-resolution digitizer, explained Murphy.

In a 40-patient proof-of-principle trial, the patients16 men and 24 womenwith a wide variety of cere
'/>"/>

Contact: Ellen Acconcia
eacconcia@sirweb.org
703-460-5582
Society of Interventional Radiology
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. UCLA Engineering advance with new nanomaterials good news for next-generation electronic devices
2. University of South Florida and Draper team to create advanced devices for testing malaria drugs
3. Armchair nanoribbons made into spintronic device
4. Simple, ingenious way to create lab-on-a-chip devices could become a model for teaching and research
5. Microfluidic device rapidly orients hundreds of embryos for high-throughput experiments
6. Simple rubber device mimics complex bird songs
7. Air flows in mechanical device reveal secrets of speech pathology
8. Study shows brass devices in plumbing systems can create serious lead-in-water problems
9. Motorola Solutions Introduces Industrys Most Comprehensive Enterprise Device Management Platform
10. Researchers develop first implanted device to treat balance disorder
11. Second-generation device more effective in capturing circulating tumor cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/15/2014)... West Africa, which has claimed more than 2000 lives, ... the molecular biology of the virus that could be ... to treat or prevent Ebola hemorrhagic fever. Now, a ... under the leadership of Dr Dan Engel, a virologist, ... obtained the crystal structure of a key protein involved ...
(Date:9/15/2014)... long and weighing as much as 170 tons, the blue ... far the heaviest living thing ever seen on Earth. So ... the tiniest fish larvae, which measure millimeters in length and ... , Not so fast, says L. Mahadevan, the Lola ... Evolutionary Biology, and of Physics. , Using simple hydrodynamics, ...
(Date:9/15/2014)... teeming with life it,s not what comes to mind ... time evidence of Doncaster,s 310-million-year-old past, including a fossilised shark ... , Some of the fossilised plants and creatures may even ... case, several horseshoe crabs and some previously unrecorded seed pods ... rocks that formed within the coal and shale deposits in ...
Breaking Biology News(10 mins):Protein secrets of Ebola virus 2The science behind swimming 2The science behind swimming 3'Jaws' lived in Doncaster 2
... change is already having a detectable impact on birds ... team publishing their findings to create the world,s first ... a continental scale. Published in the journal ... Royal Society for the Protection of Birds have shown ...
... climate change projected this century for Oregon,s Upper ... supplies, buildings, transportation systems, human health, forests, and ... by the University of Oregon,s Climate Leadership Initiative ... Policy. The authors say that extensive efforts ...
... DNA in the nucleus of each of our cells is converted ... serve as coding templates for the synthesis of proteins. Of the ... scant few are known: they inhibit the activity of genes or ... within cells. What the rest of them do within cells is ...
Cached Biology News:Climate change affecting Europe's birds now, say researchers 2Climate change affecting Europe's birds now, say researchers 3Eugene-Springfield face Upper Willamette climate threats 2Eugene-Springfield face Upper Willamette climate threats 3Eugene-Springfield face Upper Willamette climate threats 4CSHL researchers pinpoint structure-building role for 2 non-coding RNAs 2CSHL researchers pinpoint structure-building role for 2 non-coding RNAs 3
(Date:9/16/2014)... RENU 28, the world's first and only skin ... purchase in Australia and New Zealand in mid-August . , ... The tour will make stops in Brisbane on September 16, ... Sydney on the 20th, and Melbourne on the 22nd. , ... and to educate people about the new product and business ...
(Date:9/15/2014)... Sept. 15, 2014   Global Science & ... scientific products and services for satellite and weather ... for Integrated Services (OASIS) from the General Services ... selected to provide the government best-value solutions for ... (SB) category in Pool 4. The OASIS SB ...
(Date:9/15/2014)... Sept. 15, 2014 EnGeneIC, Ltd. ... the treatment of cancer through the targeted delivery ... that, together with the Asbestos Disease Research Institute ... New South Wales (NSW) Premier,s Award for Excellence ... are the hospitals that will be involved in ...
(Date:9/15/2014)... have developed a technique for controlling the surface tension ... the door to a new generation of reconfigurable electronic ... the fact that the oxide "skin" of the metal ... as a surfactant, lowering the surface tension between the ... a liquid metal alloy of gallium and indium. In ...
Breaking Biology Technology:Global Wellness Company Hosts ASEA Australia Tour September 16-22 2Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 2Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 3EnGeneIC Named a Recipient of the Cancer Institute NSW Premier's Award for Excellence in Translational Cancer Research 2EnGeneIC Named a Recipient of the Cancer Institute NSW Premier's Award for Excellence in Translational Cancer Research 3Researchers control surface tension to manipulate liquid metals 2
... Sinovac Biotech Ltd. (Amex:,SVA), a leading provider ... today that the Annual General Meeting of ... postponed due the geographical,nature of its shareholders ... materials. The Company is currently working to ...
... LLC announced,today that two new managing directors have ... firm in July 2007 as Managing Director and,Associate ... portfolios of potential investments for Third,Security,s funds, and ... and develop their own intellectual property positions. Mr. ...
... Aug. 20 Advanced Cell,Technology, Inc. (OTC Bulletin ... conditions, it plans to privately offer up to ... timing of the,closing of the offering will be ... are expected to be used to fund working ...
Cached Biology Technology:Sinovac Announces Postponement of Annual General Meeting 2Third Security, LLC Hires Two New Managing Directors 2Advanced Cell Technology Announces Proposed Financing 2Advanced Cell Technology Announces Proposed Financing 3