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:7/31/2015)... 31 de julio de 2015 La 10 th ... celebrará por medio de BGI del 22 al 25 de octubre ... Este año, la conferencia celebra su décimo aniversario. ... convertido en una de las reuniones anuales más influyentes del ... las reuniones más dinámicas, entusiastas y mejores a nivel científico. ...
(Date:7/30/2015)... MOUNTAIN VIEW, Calif. , July 30, 2015 ... products and services for gene function analysis and ... CRISPR Guide RNA (sgRNA) Knockout Library targeting all ... to specifically and permanently "knock out" a gene,s ... library provides a high throughput screening tool so ...
(Date:7/23/2015)... July 23, 2015 Research and Markets ... the "Global Outlook of the Biometrics Industry ... The global biometrics market is likely ... commercial applications owing to the uptake of multiple ... transformation that enhances the growth of biometrics in ...
Breaking Biology News(10 mins):La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 2La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 3CELLECTA, INC. Announces Launch of Human Whole Genome CRISPR Knockout Library 2Global Outlook of the Biometrics Industry 2015 2Global Outlook of the Biometrics Industry 2015 3
... reasons why early humans the so-called hominins began ... children was a factor, as has previously been suggested. ... cling to their parents in the way that young apes ... explanation as to why humans became bipedal. But University ...
... 2008) Researchers seeking new and more abundant ... have identified a potentially unlimited, noncontroversial, easily collectable, and ... cells - cells that are present in connective tissues ... the uterus. When the fresh growth of tissue and ...
... professor of electrical and computer engineering at McMaster ... Award for his work in electrical, electronic and ... to outstanding scientists and scholars whose fundamental discoveries, ... impact on their own discipline and who are ...
Cached Biology News:Early parents didn't stand for weighty kids 2Menstrual blood -- a valuable source of multipotential stem cells? 2McMaster University engineering professor receives Humboldt Research Award 2
(Date:7/30/2015)... July 30, 2015 AACC welcomed thousands ... 2015 AACC Annual Meeting & Clinical Lab Expo ... 26–30. The meeting showcased revolutionary advancements in clinical ... of healthcare providers to diagnose patients quickly and ... treatment. As of Wednesday, July ...
(Date:7/30/2015)... ... July 30, 2015 , ... Leading regenerative ... study of its canine osteoarthritis stem cell product, currently under development for FDA ... and will be marketed in the US by Aratana. This product, termed AT-016, ...
(Date:7/30/2015)... HIGHLIGHTS:Q2 2015 Results (all changes are against ... were $697 million compared to $701 million in the ... and changes in foreign currency exchange rates decreased sales ... , By business unit, organic sales growth was 6% ... Commercial. , Reported diluted EPS was $0.98 compared ...
(Date:7/29/2015)... 30, 2015 Sanofi, un ... ses résultats pour le premier semestre 2015. Le ... résultats. Visionner l,interview vidéo et lire ... Au sommaire de l,interview :  ... de croissance - Diabète ...
Breaking Biology Technology:Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 2VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 3Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 2Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 3Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 4Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 5Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 6Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 7Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 8Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 9Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 10Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 11Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 12Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 13Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 14Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 15Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 16Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 17Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 18Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 19Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 20
... Feb. 11 Elekta Neuromag(R),the world-leading equipment ... (MEG) technology, has been ordered by The,Nebraska ... http://www.newscom.com/cgi-bin/prnh/20020318/ELEKTALOGO ), With a reputation ... Nebraska Medical Center has earned J.D. Power ...
... Feb. 11 AtriCure, Inc.,(Nasdaq: ATRC ), ... cardiac surgical,ablation products, today announced that the first ... Dr. Richard Kaplon, a,well-known cardiac surgeon, performed the ... The purpose of the ABLATE clinical trial is ...
... Direct-To-Consumer Campaign of a Living ... ... Inc., the first,company to successfully mass-produce living regenerative medicine products,is ... campaign for a living cell-based therapy. As the first,bio-engineered living ...
Cached Biology Technology:Elekta Chosen to Deliver Sophisticated Brain Mapping Technology to The Nebraska Medical Center 2Elekta Chosen to Deliver Sophisticated Brain Mapping Technology to The Nebraska Medical Center 3AtriCure Announces Initiation of the ABLATE Pivotal Trial to Evaluate the Isolator Synergy(TM) Bipolar Ablation System to Treat Atrial Fibrillation 2AtriCure Announces Initiation of the ABLATE Pivotal Trial to Evaluate the Isolator Synergy(TM) Bipolar Ablation System to Treat Atrial Fibrillation 3AtriCure Announces Initiation of the ABLATE Pivotal Trial to Evaluate the Isolator Synergy(TM) Bipolar Ablation System to Treat Atrial Fibrillation 4Organogenesis Debuts Educational Campaign for Sufferers of Chronic Leg and Foot Ulcers 2Organogenesis Debuts Educational Campaign for Sufferers of Chronic Leg and Foot Ulcers 3Organogenesis Debuts Educational Campaign for Sufferers of Chronic Leg and Foot Ulcers 4
Monocyte-derived dendritic cells, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Dendritic Cells...
Human plasmacytoid dendritic cells, BDCA-4+, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Dendritic Cells and EPCs...
Human peripheral blood neutrophils, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Granulocytes...
Human endothelial progenitor cells, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Dendritic Cells and EPCs...
Biology Products: