A method for the direct reconstruction of an object from measurements of the quantum efficiency determined from both a diffusing wave and a reradiated diffusing wave effected by irradiating the object with a source of radiation. The quantum efficiency is related to the number density of the...http://www.google.de/patents/US5762607?utm_source=gb-gplus-sharePatent US5762607 - Emission tomography system and method using direct reconstruction of scattered radiation 
