Optical imaging allows for the detection of small masses and tumors. It can help in the diagnosis of various diseases including cancer, cardiovascular, neurological, developmental, and infectious diseases. The use of non-destructive imaging techniques and the high quality images they produce have made the detection and treatment of many health disorders easier and cheaper.
Optical Imaging is a new non-invasive approach for obtaining images of the body's internal organs. To acquire a comprehensive image of interior organs and tissues, visible light and photons are used. Images of smaller structures, such as cells and molecules, are also taken. The properties of photons, such as absorption and scattering, are used to measure and sense the qualities of organs and soft tissues in optical imaging. Despite the fact that optical imaging technology is still in its early stages of development, it offers a number of technological benefits over current imaging methods.
Overcoming attenuation and scattering of light by tissues is a major difficulty for optical imaging probes and apparatus, especially those aimed towards therapeutic applications. Absorption of visible light by haemoglobin and other molecules can diminish optical signals by as much as tenfold per centimetre of tissue.
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