Monday, January 01, 2007
Superthin 3-D Endoscope
An instrument to detect tiny tumors
By Susan Nasr
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At the new endoscope’s glass fiber tip, light refracts into a rainbow of colors that reflect off tissue (shown above). The fiber’s tip is just 350 micrometers wide.
Credit: Courtesy of the Wellman Center for Photomedicine, Massachusetts General Hospital |
In an endoscope meant to penetrate the brain, look at a fetus, or thread through tiny ducts, smaller is better. But the endoscopes that produce the clearest 3-D images use cameras several millimeters wide--too big to go many places in the body. Now researchers at Massachusetts General Hospital in Boston have demonstrated an endoscope that's just 350 micrometers wide and sends back 3‑D images that are as clear as those produced by larger endoscopes.
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