Patent ID: 6778850
Filing Date: 2004-08-17
Classification: A61B,A61N

Abstract:
A system for treating a target region by directing a treatment beam towards the target region, comprising:a treatment beam generator for generating a radiosurgical treatment beam; one or more diagnostic x-ray beam generators for generating during treatment a plurality of diagnostic beams, each diagnostic beam being directed towards and through the target region, each diagnostic beam being generated from a different position so each diagnostic beam passes through the target region at a predetermined non-zero angle with respect to each other; at least one imagining device for receiving each the plurality of diagnostic beams after each diagnostic beam has passed through the target region, and for generating a 2-D diagnostic image of the target region from each received diagnostic beam; and a processor for synthesizing a relatively low clarity intra treatment 3-D image of the target region from said plurality of 2-D diagnostic images, and for comparing said synthesized 3-D image with a relatively high clarity pre-operative three-dimensional CT scan image to determine the position of the target region, so that said radiosurgical treatment beam can be continuously focused onto the target region.