Washington: A new swallowable camera-in-a-capsule could help doctors spot early signs of esophageal cancer, offering several advantages over traditional endoscopy, researchers say.The hi-tech transparent device is about the size of a large multivitamin pill and contains a rapidly rotating laser that shines a beam of near-infrared light onto the wall of the esophagus, the pipe that carries food to the stomach.Researchers at the Wellman Center for Photomedicine at Massachusetts General Hospital (MGH) said the system has several advantages over traditional endoscopy."This system gives us a convenient way to screen for Barrett`s that doesn`t require patient sedation, a specialised setting and equipment, or a physician who has been trained in endoscopy," said researcher Gary Tearney."By showing the three-dimensional, microscopic structure of the esophageal lining, it reveals much more detail than can be seen with even high-resolution endoscopy," said Tearney in a statement.
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