Optical tomography

Optical tomography is a form of computed tomographythat creates a digitalvolumetric modelof an object from reconstructing images made from light transmitted and scattered through an object. Optical tomography is used mostly as a form of medical imaging.

Optical tomography relies on the object under study being at least partially light-transmitting, so it works best on soft tissues; imaging of breastand braintissue are examples.

The high attenuation involved is generally dealt with by using intense, often pulsed, light sources, and highly sensitive light sensors, and the use of infraredlight at frequencies where body tissues are most transmissive.

One recent variant of optical tomography uses optical time-of-flight samplingto attempt to distinguish transmitted light from scattered light.

See also

• Optical coherence tomography

External links

• Optical tomography at Imperial College, London
• Optical tomography at University College, London

This article is licensed under the GNU Free Documentation License.
It uses material from the http://en.wikipedia.org/wiki/Optical+tomography Wikipedia article Optical tomography.