Featured Research

from universities, journals, and other organizations

New Acoustic Absorber To Improve Physiotherapy Ultrasound Machines

Date:
September 25, 2007
Source:
National Physical Laboratory
Summary:
Physiotherapy ultrasound machines are commonplace in medicine and sports injury treatment but limitations with current calibration equipment mean they may be producing inaccurate doses that could lead to further injury. Newly developed technology could greatly improve the accuracy of the calibration and therefore the quality of treatment.

Physiotherapy ultrasound machines are commonplace in medicine and sports injury treatment but limitations with current calibration equipment mean they may be producing inaccurate doses that could lead to further injury.

New technology developed by scientists at the National Physical Laboratory (NPL) and tested by Lothian NHS could greatly improve the accuracy of the calibration and therefore the quality of treatment.

NPL has developed an acoustic absorber that can be retro-fitted into current calibration equipment to increase its accuracy. The upgrade has been successfully trialed by medical physics staff in NHS Lothian, where tests on a recently-repaired machine showed ultrasound power levels measured were up to 100 perecent higher than those indicated and would have delivered double the intended dose. Thanks to NPL's acoustic absorber a potentially harmful machine was taken out of clinical service, avoiding future patient injury.

Physiotherapy machines produce beams of sound which can spread out quickly from the applicator, like a shower head that sprays water diagonally as well as forwards. Current methods of calibrating their output are not always accurate, with equipment surveys suggesting that up to 70 percent of the tens of thousands of physiotherapy machines in clinical use could be outside specification. However, equipment using NPL's new acoustic absorber is able to accommodate spreading beams and provides much greater calibration accuracy.

Mark Hodnett, Senior Research Scientist at NPL, said: "Out-of-spec physiotherapy ultrasound machines are being used everyday, with both patient and physiotherapist unaware of the risks they are taking. Take-up of NPL's research by manufacturers and the NHS can offer a quick and simple way to improve the accuracy of machine calibration. This can help ensure that soft tissue injuries are treated correctly and without risk of further injury."

Dr Steve Pye, Consultant Medical Physicist in NHS Lothian, said

"Ensuring that patients are treated with the correct level of ultrasonic power has always been a difficult problem. NPL have delivered a double-whammy by making the calibration of physiotherapy equipment both simpler and more accurate."


Story Source:

The above story is based on materials provided by National Physical Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

National Physical Laboratory. "New Acoustic Absorber To Improve Physiotherapy Ultrasound Machines." ScienceDaily. ScienceDaily, 25 September 2007. <www.sciencedaily.com/releases/2007/09/070924104623.htm>.
National Physical Laboratory. (2007, September 25). New Acoustic Absorber To Improve Physiotherapy Ultrasound Machines. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2007/09/070924104623.htm
National Physical Laboratory. "New Acoustic Absorber To Improve Physiotherapy Ultrasound Machines." ScienceDaily. www.sciencedaily.com/releases/2007/09/070924104623.htm (accessed October 21, 2014).

Share This



More Matter & Energy News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Thanks, Marty McFly! Hoverboards Could Be Coming In 2015

Thanks, Marty McFly! Hoverboards Could Be Coming In 2015

Newsy (Oct. 21, 2014) If you've ever watched "Back to the Future Part II" and wanted to get your hands on a hoverboard, well, you might soon be in luck. Video provided by Newsy
Powered by NewsLook.com
Robots to Fly Planes Where Humans Can't

Robots to Fly Planes Where Humans Can't

Reuters - Innovations Video Online (Oct. 21, 2014) Researchers in South Korea are developing a robotic pilot that could potentially replace humans in the cockpit. Unlike drones and autopilot programs which are configured for specific aircraft, the robots' humanoid design will allow it to fly any type of plane with no additional sensors. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
Graphene Paint Offers Rust-Free Future

Graphene Paint Offers Rust-Free Future

Reuters - Innovations Video Online (Oct. 21, 2014) British scientists have developed a prototype graphene paint that can make coatings which are resistant to liquids, gases, and chemicals. The team says the paint could have a variety of uses, from stopping ships rusting to keeping food fresher for longer. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
Portable Breathalyzer Gets You Home Safely

Portable Breathalyzer Gets You Home Safely

Buzz60 (Oct. 21, 2014) Breeze, a portable breathalyzer, gets you home safely by instantly showing your blood alcohol content, and with one tap, lets you call an Uber, a cab or a friend from your contact list to pick you up. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins