Path: EDN Asia >> News Centre >> Medical >> 3D ultrasonic imaging gets boost with MEMS
Medical Share print

3D ultrasonic imaging gets boost with MEMS

11 Jun 2014  | Julien Happich

Share this page with your friends

After proving the concept using 1D CMUT arrays, the researcher is working on the fabrication of 2D arrays. Depending on their designs, these 2D arrays could be used to perform accurate 3D mapping and spatial exploration at room level or even inside patients.

"The word 'accurate' should be defined here. Low frequency signals (<1MHz) usually reach distances in the order of metres and are best suited for air borne ultrasound. Frequencies that are in the order of 10MHz, only penetrate a few centimetres," told us Unamuno. "On the other side, higher frequencies allow for a better resolution than lower frequencies. It is a trade-off."

So, how fast could imaging be performed?

Probing different spatial points (serially one after the other) could be an option, but it is also possible to send a single acoustic pulse and receive all the echoes, then post-process and synthesise the images. Using so-called time-reversal processing, Dr Mathias Fink from the Langevin Institute reported acquisition speeds up to 10,000 image frames per second.

With Fraunhofer IPMS' in-house clean room capacity to reliably fabricate application specific CMUT arrays in small to mid-volumes, the researcher hopes to take CMUTs out of the lab into real life applications. These could range from intra-vascular ultrasound (IVUS) imaging to non-destructive materials testing, to gas and chemical sensors.

 First Page Previous Page 1 • 2

Want to more of this to be delivered to you for FREE?

Subscribe to EDN Asia alerts and receive the latest design ideas and product news in your inbox.

Got to make sure you're not a robot. Please enter the code displayed on the right.

Time to activate your subscription - it's easy!

We have sent an activate request to your registerd e-email. Simply click on the link to activate your subscription.

We're doing this to protect your privacy and ensure you successfully receive your e-mail alerts.

Add New Comment
Visitor (To avoid code verification, simply login or register with us. It is fast and free!)
*Verify code:
Tech Impact

Regional Roundup
Control this smart glass with the blink of an eye
K-Glass 2 detects users' eye movements to point the cursor to recognise computer icons or objects in the Internet, and uses winks for commands. The researchers call this interface the "i-Mouse."

GlobalFoundries extends grants to Singapore students
ARM, Tencent Games team up to improve mobile gaming

News | Products | Design Features | Regional Roundup | Tech Impact