Navigation Links
New 3-D ultrasound could improve stroke diagnosis, care
Date:4/24/2008

afe to say that within five to 10 years, the technology will be miniaturized to the point where EMTs in an ambulance can scan the brain of a stroke patient and transmit the results ahead to the hospital, Smith continued. Speed is important because the only approved medical treatment for stroke must be given within three hours of the first symptoms.

Ultrasound devices emit sound waves and then create images by calculating the angle of the waves as they bounce back.

For their experiments, the Duke team studied 17 healthy people. After injecting them with a contrast dye to enhance the images, the researchers aimed ultrasound wands, or transducers, into the brain from three vantage points the temples on each side of the head and upwards from the base of the neck. The temple locations were chosen because the skull is thinnest at these points.

Ivancevich took this approach one step further to compensate for the thickness and unevenness of the skull in one subject.

The speed of the sound waves is faster in bone than it is in soft tissue, so we took measurements to better understand how the bone alters the movement of sound waves, Ivancevich explained. With this knowledge, we were able to program the computer to correct for the skulls interference, resulting in even clearer images of the arteries.

The key to obtaining these images lies in the design of the transducer. In traditional 2-D ultrasound, the sound is emitted by a row of sensors. In the new design, the sensors are arranged in a checkerboard fashion, allowing compensation for the skull's thickness over a whole area, instead of a single line.

The 3-D ultrasound has the benefit of being less expensive and faster than the traditional methods of assessing blood flow in the brain MRI or CT scanning, Ivancevich said. Though 3-D ultrasound will not totally displace MRI or CT scans, he said that the new technology would give physicians more flexibility in treating the
'/>"/>

Contact: Richard Merritt
richard.merritt@duke.edu
919-660-8414
Duke University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Newly created cancer stem cells could aid breast cancer research
2. Obesity and lack of exercise could enhance the risk of pancreatic cancer
3. Finding that 1-in-a-billion that could lead to disease
4. 60 second test could help early diagnosis of common brain diseases
5. Auto immune response creates barrier to fertility; could be a step in speciation
6. Paracetamol, one of most used analgesics, could slow down bone growth
7. Drug could improve pregnancy outcomes in wider range of women with insulin resistance
8. Thousands of starving children could be restored to health with peanut butter program
9. Nanotech could make solar energy as easy and cheap as growing grass
10. CO2 emissions could violate EPA ocean-quality standards within decades
11. MIT model could improve some drugs effectiveness
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... Issue Serious allergic reactions to food often ... some children.    What you should know ... and this number may be increasing, especially among children. Up ... food allergies.  The symptoms of allergic reactions ... difficulties and loss of consciousness. Symptoms can also develop at ...
(Date:8/20/2014)... National Institutes of Health has awarded the Oklahoma Medical ... its research on anthrax and the bacteria,s effects on ... Coggeshall, Ph.D., and his colleagues have studied the human ... Cooperative Centers for Human Immunology. The original funding came ... on the heels of the terrorist attacks of Sept. ...
(Date:8/20/2014)... Wu Feng has built upon a National Science Foundation ... Cloud" program, and synergistically complemented it with subsequent collaborative ... Force on "big computing" for mini-drones and a $1 ... Health on "big data" for the life sciences. , ... each grant, he was able to tell a much ...
Breaking Biology News(10 mins):Information Update - Allergens and food safety at school - What's in your child's lunch? 2Information Update - Allergens and food safety at school - What's in your child's lunch? 3$14.5 million grant awarded to continue anthrax studies 2The internet was delivered to the masses; parallel computing is not far behind 2The internet was delivered to the masses; parallel computing is not far behind 3The internet was delivered to the masses; parallel computing is not far behind 4
... Prof. Nathan Nelson of Tel Aviv University,s Department ... has been awarded the 2012 Israel Prize in the ... in Jerusalem on the eve of Israel,s Independence Day ... molecular biology, Prof. Nelson is internationally renowned for his ...
... soon become a thing of the past. Instead, with ... painless injection four times a year would be enough. ... and is delivered by an injection into the outer layer ... The nanocarrier will then slowly release the drug over ...
... receive this year,s Charles Rodolphe Brupbacher Prize for Cancer ... of chronic inflammation in the development of tumors. The ... considered one of the highest accolades for cancer researchers ... Thursday in the framework of an international symposium on ...
Cached Biology News:NTU launches new centre to develop new eye-deas for occular therapeutics 2NTU launches new centre to develop new eye-deas for occular therapeutics 3Brupbacher Prize goes to cancer researcher Michael Karin 2
(Date:8/21/2014)... 21, 2014 Telomere Biosciences, LLC (Telomere ... "TELO-20 for Dogs" with Telomerase Activation Complex ... the world for dogs. Telomeres are the protective ... the body. A wealth of ground-breaking research by ... Science and Aging, including Nobel laureates, has demonstrated ...
(Date:8/21/2014)... Aug. 21, 2014 OTC Markets ... Inc., a biotechnology company, on its approval to ... traded on OTCQX®, the best marketplace for established ... Group. Logo - http://photos.prnewswire.com/prnh/20110118/MM31963LOGO ... successful execution of its growth strategy and achievement ...
(Date:8/21/2014)... Ontotext S4 , The Self Service ... Now the same enterprise hardened text mining, Linked ... data is available to start-ups and mid-size businesses at ... that do not have resources to evaluate and prototype ... since there is no need for on premise hardware ...
(Date:8/20/2014)... 20, 2014 Clintrax Global, Inc., a ... Raleigh, NC , recently announced ... Vice President of Administration. As ... corporate processes, including their alignment with company objectives ... worked as an HR executive, specializing in needs ...
Breaking Biology Technology:Telomere Biosciences Announces: TELO-20 for Dogs, the World's First Telomere-Lengthening Supplement for Dogs, to Promote Healthy Aging and Longevity 2Telomere Biosciences Announces: TELO-20 for Dogs, the World's First Telomere-Lengthening Supplement for Dogs, to Promote Healthy Aging and Longevity 3OTC Markets Group Congratulates Immune Pharmaceuticals on NASDAQ Listing 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 3Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 4Clintrax Global, Inc. Announces Addition to Executive Team 2
... 31 Alexza,Pharmaceuticals, Inc. (Nasdaq: ALXA ) ... live during the 10th Annual BIO CEO & ... p.m. Eastern Time., The presentation will be ... access the live presentation via the Web, please ...
... to Manufacture ARIUS, Product Candidate Trop-2 Signal ... ... Pharma, Inc., a full-,service biopharmaceutical development and protein production company, ... agreement,with ARIUS Research, Inc., a biotechnology company focused on discovering,and ...
... Precision and ... Simultaneous Diagnostic Monitoring MUKILTEO, Wash. and ... CBMX ) and Clarient, Inc. (Nasdaq: CLRT ),today jointly ... novel genomics-based cancer test called HemeScan(TM), a,comprehensive test related to ...
Cached Biology Technology:Alexza's Corporate Presentation to be Webcast at the 10th Annual BIO CEO & Investor Conference 2Laureate Announces Manufacturing Agreement with ARIUS for Trop-2 Targeting Antibody 2Laureate Announces Manufacturing Agreement with ARIUS for Trop-2 Targeting Antibody 3CombiMatrix and Clarient Collaborate to Market, Sell Novel Genomics-Based Test for Chronic Lymphotic Leukemia (CLL) 2CombiMatrix and Clarient Collaborate to Market, Sell Novel Genomics-Based Test for Chronic Lymphotic Leukemia (CLL) 3CombiMatrix and Clarient Collaborate to Market, Sell Novel Genomics-Based Test for Chronic Lymphotic Leukemia (CLL) 4CombiMatrix and Clarient Collaborate to Market, Sell Novel Genomics-Based Test for Chronic Lymphotic Leukemia (CLL) 5CombiMatrix and Clarient Collaborate to Market, Sell Novel Genomics-Based Test for Chronic Lymphotic Leukemia (CLL) 6
Anti-Flavocytochrome b Monoclonal, FITC Labeled Research Focus: other Storage: 4C Shipping Temperature: 4C...
Chaps Cell Extract Buffer can be used to lyse cells under nondenaturing conditions and is recommendedfor the preparation of cell lysates to be used with our caspase signaling pathway antibodies...
Rabbit polyclonal to Reptin/TIP49B/RUVB2 ( Abpromise for all tested applications). Antigen: Synthetic peptide (Human) Entrez Gene ID: 10856 Swiss Protein ID: Q6FIB9...
Anti-human L-Ficolin, Clone GN4, Monoclonal Antibody...
Biology Products: