July 31st, 2011 by Medgadget in News, Research
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Researchers from Case Western Reserve School of Medicine in Cleveland, Ohio made a prototype of an artificial lung which reaches gas exchange efficiencies almost equal to the genuine organ. The small device does not need extra oxygen, it works with normal air. Joe Potkay, a research assistant professor in electrical engineering and computer science published the technique this week in the journal Lab on a Chip.
The scientists developed this prototype while keeping track of the natural design of our lungs. It is made of breathable silicone rubber acting as blood vessels that get as small as one-fourth of the width of a human hair. Because it works on the same scale as normal lung tissue, the team was able to shrink the distances for gas diffusion compared to current techniques. Tests using pig blood show oxygen exchange efficiency is three to five times better.
One of the big advantages of this system is that Read more »
*This blog post was originally published at Medgadget*
July 26th, 2011 by Medgadget in News, Research
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Care Innovations, a joint venture between GE and Intel, has released Connect, a service designed to address social isolation in seniors.
Connect software runs on a touch screen device and features social networking, as well as health management and reporting tools. The system has been undergoing a successful user trial at a nursing home in Michigan since last year.
More about Connect from the announcement: Read more »
*This blog post was originally published at Medgadget*
July 22nd, 2011 by Medgadget in Research
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A new contrast agent based on maltodextrin has been developed at Georgia Tech that can provide in vivo imaging of bacteria with a sensitivity two orders of magnitude greater than previously achieved.
Unlike most previous methods, the new probes are able to enter bacterial cells by pretending to be food, while avoiding being ingested by the mammalian cells.
From Georgia Tech:
Maltodextrin-based imaging probes consist of a fluorescent dye linked to maltohexaose, which is a major source of glucose for bacteria. The probes deliver the contrast agent into bacteria through the organism’s maltodextrin transporter, which only exists in bacterial cells and not mammalian cells.
In experiments using a rat model, the researchers found that Read more »
*This blog post was originally published at Medgadget*
July 16th, 2011 by Medgadget in News
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Clinicians at Karolinska University Hospital in Sweden are reporting that they successfully performed the world’s first implantation of a synthetic trachea. The organ was created from a biocompatible scaffold that was seeded with the 36 year old patient’s own stem cells inside a Harvard Bioscience bioreactor.
The patient had been suffering from late stage tracheal cancer. Despite maximum treatment with radiation therapy, the tumor had reached approximately 6 cm in length and was extending to the main bronchus. It was progressing and almost completely blocked the trachea. Since no suitable donor windpipe was available, Read more »
*This blog post was originally published at Medgadget*
May 18th, 2011 by Medgadget in Health Tips, News
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Researchers from the University of Calgary have shown that doctors can make a stroke diagnosis using an iPhone application just as accurately (and faster) than they can on a traditional computer. In a study recently published by Journal of Medical Internet Research, two neuro-radiologists looked at 120 consecutive noncontrast computed tomography (NCCT) scans and 70 computed tomography angiogram (CTA) head scans. One used a diagnostic workstation and the other using Calgary Scientific‘s ResolutionMD Mobile app. The study results showed that using the ResolutionMD app is between 94%-100% accurate in diagnosing acute stroke, compared to a medical workstation.
In addition to accurately diagnosing a stroke, the app was also praised for its ability to handle a large number of images seamlessly and to detect subtle, but potentially critical findings in CT scans. Moreover, the mobile nature of the app gives doctors the ability to analyze and diagnose strokes from practically anywhere. Read more »
*This blog post was originally published at Medgadget*