System and method for tomographic imaging of dynamic...

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G01N 21/00 (2006.01) G01N 21/25 (2006.01) G01N 21/47 (2006.01) G01N 23/04 (2006.01) G01N 29/00 (2006.01)

Patent

CA 2384822

A system and method for the detection and three dimensional imaging of absorption and scattering properties of a medium such as human tissue is described. According to one embodiment of the invention, the system directs optical energy toward a turbid medium from at least one source and detects optical energy emerging from the turbid medium at a plurality of locations uisng at least one detector (106). The optical energy emerging from the medium (102) and entering the detector (106) originates from the source (101) is scattered by the medium (102). The system then generates an image representing interior structure of the turbid medium based on the detected optical energy emerging from the medium (102). Generating the image includes a time-series analysis.

L'invention concerne un système et un procédé permettant la détection et l'imagerie tridimensionnelle des propriétés d'absorption et de diffusion d'un milieu diffusant tel que le tissu humain. Selon un mode de réalisation décrit dans la présente invention, le système dirige une énergie optique provenant d'au moins une source vers un milieu trouble, puis il détecte l'énergie optique provenant de ce milieu trouble à divers emplacements par l'intermédiaire d'un détecteur (106). L'énergie optique provenant du milieu (102) et pénétrant dans le détecteur (106) depuis la source (101) est diffusée par le milieu (102). Le système produit ensuite une image représentant la structure intérieure du milieu trouble à partir de l'énergie optique détectée provenant du milieu (102). La production d'image comprend une analyse chronologique.

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