Navigation Links
Texas A&M research contributes to improved ultrasound imaging
Date:3/5/2013

Ultrasound technology could soon experience a significant upgrade that would enable it to produce high-quality, high-resolution images, thanks to the development of a new key material by a team of researchers that includes a professor in the Department of Biomedical Engineering at Texas A&M University.

The material, which converts ultrasound waves into optical signals that can be used to produce an image, is the result of a collaborative effort by Texas A&M Professor Vladislav Yakovlev and researchers from King's College London, The Queen's University of Belfast and the University of Massachusetts Lowell. Their findings appear in the current issue of "Advanced Materials."

The engineered material, known as a "metamaterial," offers significant advantages over conventional ultrasound technology, which generates images by converting ultrasound waves into electrical signals, Yakovlev explains. Although that technology has advanced throughout the years think of the improvement in sonogram images it is still largely constrained by bandwidth and sensitivity limitations, he says. These limitations, he adds, have been the chief obstacle when it comes to producing high-quality images that can serve as powerful diagnostic tools.

The metamaterial developed by Yakovlev and his colleagues is not subject to those limitations, primarily because it converts ultrasound waves into optical signals rather than electrical ones. The optical processing of the signal does not limit the bandwidth or sensitivity of the transducer (converter) and that's important for producing highly detailed images, Yakovlev says.

"A high bandwidth allows you to sample the change of distance of the acoustic waves with a high precision," Yakovlev notes. "This translates into an image that shows greater detail. Greater sensitivity enables you to see deeper in tissue, suggesting we have the potential to generate images that might have previously not been possible with conventional ultrasound technology."

In other words, this new material may enable ultrasound devices to see what they haven't yet been able to see. That advancement could significantly bolster a technology that is employed in a variety of biomedical applications. In addition to being used for visualizing fetuses during routine and emergency care, ultrasound is used for diagnostic purposes in incidents of trauma and even as a means of breaking up tissue and accelerating the effects of drugs therapies.

While Yakovlev's research is not yet ready for integration into ultrasound technology, it has successfully demonstrated how conventional technology can be substantially improved by using the newly engineering material created by his team, he notes.

The material, he notes, consists of golden nanorods embedded in a polymer known as polypyrrole. An optical signal is sent into this material where it interacts with and is altered by incoming ultrasound waves before passing through the material. A detection device would then read the altered optical signal, analyzing the changes in its optical properties to process a higher resolution image, Yakovlev explains.

"We developed a material that would enable optical signal processing of ultrasound," Yakovlev says. "Nothing like this material exists in nature so we engineered a material that would provide the properties we needed. It has greater sensitivity and broader bandwidth. We can go from 0-150 MHz without sacrificing the sensitivity. Current technology typically experiences a substantial decline in sensitivity around 50 MHz.

"This metamaterial can efficiently convert an acoustic wave into an optical signal without limiting the bandwidth of the transducer, and its potential biomedical applications represent the first practical implementation of this metamaterial."


'/>"/>

Contact: Ryan Garcia
979-847-5833
Texas A&M University
Source:Eurekalert

Related biology news :

1. Monarch butterflies down again this year as decline continues, says Texas A&M expert
2. NASAs Landsat satellites see Texas crop circles
3. NASA satellite measurements imply Texas wind farm impact on surface temperature
4. University of North Texas Health Science Center Advances Forensic Research by Investing in Semiconductor DNA Sequencing Technology
5. Diet of early human relative Australopithecus shows surprises, says Texas A&M researcher
6. Mining cleanup benefits from Texas A&M expertise
7. University of Texas Medical Branch selected to manage Center for Polar Medical Operations
8. NSBRI renews space life sciences graduate programs at MIT, Texas A&M
9. BP Biofuels, Texas AgriLife Research sign agreement to advance biofuel feedstock development
10. Controlling gait of horses may be possible, says key study from Texas A&M
11. Newly discovered letters and translated German ode expand Texas link to infamous Bone Wars
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/14/2016)... , April 14, 2016 ... and Malware Detection, today announced the appointment of ... the new role. Goldwerger,s leadership appointment comes ... the heels of the deployment of its platform at ... behavioral biometric technology, which discerns unique cognitive and physiological ...
(Date:3/23/2016)... , March 23, 2016 ... Interesse erhöhter Sicherheit Gesichts- und Stimmerkennung mit ... Inc. (NASDAQ: MESG ), ein ... dass das Unternehmen mit SpeechPro zusammenarbeitet, um ... der Finanzdienstleistungsbranche, wird die Möglichkeit angeboten, im ...
(Date:3/17/2016)... 2016 ABI Research, the leader in ... biometrics market will reach more than $30 billion ... 2015. Consumer electronics, particularly smartphones, continue to boost ... to reach two billion shipments by 2021 at ... , Research Analyst at ABI Research. "Surveillance is ...
Breaking Biology News(10 mins):
(Date:4/26/2016)... ... April 26, 2016 , ... The European Patent Office (EPO) ... of three finalists for the European Inventor Award 2016 in the category "Non-European countries." ... announced at a ceremony in Lisbon on June 9th. , The human capacity to ...
(Date:4/26/2016)... ... 2016 , ... Mr. Palmer created the RPO business for Ceridian and lead ... managed services contract in the U.S. intelligence community with The SI (a Lockheed Martin ... Younger, founder of Accolo. “We are growing and his experience guiding our expansion ...
(Date:4/26/2016)... ... April 26, 2016 , ... BioFactura, Inc ., a ... round of financing. Healthy investor interest drove significant oversubscription of the original $1.5M ... known as biosimilars, to the advanced preclinical stages. , Chief Executive Officer and President, ...
(Date:4/26/2016)... and MIAMI , ... prize recognizes the innovation capabilities of Norma,s R&D ... benefit patients and laboratory diagnostics globally. ... Norma Instruments , an innovative technology ... the field of hematology, announced today that it ...
Breaking Biology Technology: