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Ultrasound imaging now possible with a smartphone
Date:4/21/2009

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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 to 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-mi
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Contact: William D. Richard
wdr@wustl.edu
314-935-4676
Washington University in St. Louis
Source:Eurekalert

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