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New optical imaging system to find tiny tumors

Updated: 07 March 2019

Scientists have developed an optical imaging system to detect tiny tumors deep inside the body. This has been developed by MIT researchers in the US and they named it “DOLPHIN”. DOLPHIN relies on NIR light and can trace through 0.1 millimetre fluorescent probe in a living mouse’s digestive tract.

It will be a non-invasive method and can diagnose tiny tumors within the body. Near-infrared light is used in this system due to its wavelength ranging from 900-1700 nanometres which is well matched for tissue imaging. Due to its longer wavelength, light does not scatter more while striking the objects leading to deeper penetration into tissue.