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Scientists in Britain have developed a camera that can help doctors see through the human body. Designed to help doctors track medical tools known as endoscopes that are used to investigate a range of internal conditions, the new device can detect sources of light inside the body, such as the illuminated tip of the endoscope’s long flexible tube, according to a study published in the journal Biomedical Optics Express. Until now, it has not been possible to track where an endoscope is located in the body in order to guide it to the right place without using X-rays or other expensive methods. Light from the endoscope can pass through the body, but it usually scatters or bounces off tissues and organs rather than travelling straight through. This makes it nearly impossible to get a clear picture of where the endoscope is. (IANS)
