Acquisition and electrical signal processing in an experimental CW-Diffuse Optical Tomography system

摘要

Diffuse Optical Tomography (DOT) is a diagnostic tool for detectinginhomogeneities in translucent soft tissue based on the distribution of the tissueabsorption coefficient and reduced scattering coefficient. Its principle is to use multiplemovable light sources and detectors attached to the tissue boundary to collectinformation on light attenuation, and to reconstruct the internal 3-D absorption andscattering distributions. This work describes methods and protocols in generation,modulation and signal acquisition and processing to operate an experimental DOTsystem.