Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Ultrasound imaging now possible with a smartphone

23.04.2009
Imaging device fits in the palm of a hand

Computer engineers at Washington University in St. Louis are bringing the minimalist approach to medical care and computing by coupling USB-based ultrasound probe technology with a smartphone, enabling a compact, mobile computational platform and a medical imaging device that fits in the palm of a hand.

William D. Richard, Ph.D., WUSTL associate professor of computer science and engineering, and David Zar, research associate in computer science and engineering, have made commercial USB ultrasound probes compatible with Microsoft Windows mobile-based smartphones, thanks to a $100,000 grant Microsoft awarded the two in 2008.

In order to make commercial USB ultrasound probes work with smartphones, the researchers had to optimize every aspect of probe design and operation, from power consumption and data transfer rate to image formation algorithms. As a result, it is now possible to build smartphone-compatible USB ultrasound probes for imaging the kidney, liver, bladder and eyes, endocavity probes for prostate and uterine screenings and biopsies, and vascular probes for imaging veins and arteries for starting IVs and central lines. Both medicine and global computer use will never be the same.

"You can carry around a probe and cell phone and image on the fly now," said Richard. "Imagine having these smartphones in ambulances and emergency rooms. On a larger scale, this kind of cell phone is a complete computer that runs Windows. It could become the essential computer of the Developing World, where trained medical personnel are scarce, but most of the population, as much as 90 percent, have access to a cell phone tower."

"Twenty-first century medicine is defined by medical imaging," said Zar. "Yet 70 percent of the world's population has no access to medical imaging. It's hard to take an MRI or CT scanner to a rural community without power."

Shrinking the electronics over 25 years

Zar said the vision of the new system is to train people in remote areas of the developing world on the basics of gathering data with the phones and sending it to a centralized unit many miles, or half a world away where specialists can analyze the image and make a diagnosis. Zar wrote the phone software and firmware for the probes; Richard came up with the low-power probe electronics design. He began working on ultrasound system designs 25 years ago, and in that span he has shrunk the electronics from cabinet-sized to a tiny circuit board one inch by three inches. A typical, portable ultrasound device may cost as much as $30,000. Some of these USB-based probes sell for less than $2,000 with the goal of a price tag as low as $500.

Another promising application is for caregivers of patients with Duchene's Muscular Dystrophy. A degenerative disease that often strikes young boys and robs them of their lives by their late 20s, DMD is a degenerative disease for which there is no cure. The leading treatment to slow its progression is a daily dose of steroids. Patients often experience some side effects from steroids, which are dose related. These side effects include behavioral problems and weight gain. Researchers now know that physical changes in muscle tissue can indicate the efficacy of the steroids. Measuring these changes in muscle can be accomplished with ultrasound and may allow researchers to optimize steroid dosing to maximize efficacy while minimizing side effects.

"The idea is that caregivers, who otherwise have to transport a young person, often wheelchair bound, to a hospital or clinic on a regular basis for examination, can be trained to do ultrasound to track muscle condition," Zar said. "This could lower the dosage to the least effective amount to further increase quality of life of the patient and the caregiver and hopefully extend life. We're really excited about this application. The caregiver would only have to do a one-minute scan, transfer the data captured to the clinic, and the results would come back to the caregiver. A group at the WUSTL Medical School studying Duchene's Muscular Dystrophy is very interested in our devices and hopes they can incorporate them into their research plans."

Field trials in the Third World

Richard and Zar have discussed a potential collaboration with researchers at the Massachusetts Institute of Technology about integrating their probe-smartphone concept into a suite of field trials for medical applications in developing countries.

"We're at the point of wanting to leverage what we've done with this technology and find as many applications as possible," Richard said.

One such application could find its way to the military. Medics could quickly diagnose wounded soldiers with the small, portable probe and phone to detect quickly the site of shrapnel wounds in order to make the decision of transporting the soldier or treating him elsewhere on the field.

Richard and Zar demonstrated a fully functional smartphone-compatible USB ultrasound probe at Microsoft Research Techfest 2009 in February, and Zar presented the technology at the 2009 World Health Care Congress in Washington, D.C., April 14-16.

William D. Richard | EurekAlert!
Further information:
http://www.wustl.edu
http://news-info.wustl.edu/tips/page/normal/13928.html

More articles from Information Technology:

nachricht Japanese researchers develop ultrathin, highly elastic skin display
19.02.2018 | University of Tokyo

nachricht Why bees soared and slime flopped as inspirations for systems engineering
19.02.2018 | Georgia Institute of Technology

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

Im Focus: Interference as a new method for cooling quantum devices

Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters

Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Helping in spite of risk: Ants perform risk-averse sanitary care of infectious nest mates

21.02.2018 | Life Sciences

Fraunhofer ISE Supports Market Development of Solar Thermal Power Plants in the MENA Region

21.02.2018 | Power and Electrical Engineering

A variety of designs for OLED lighting in one easy kit

21.02.2018 | Trade Fair News

VideoLinks
Science & Research
Overview of more VideoLinks >>>