Patent ID: 6546068
Filing Date: 2003-04-08
Classification: A61B

Abstract:
A photographed image data acquiring method in which a radiation source and a radiation detector disposed so that a subject is interposed between them are turned around said subject relative to the subject while cone-shaped radiation is projected toward said subject from said radiation source, and the radiation which permeates said subject is detected with said radiation detector to obtain photographed image data for said subject, said radiation detector comprising a partial radiation detector, whereinthe entire detection region for each of the directions of projection is divided into a plurality of partial regions adjacent to each other; the partial radiation detector is moved to each of these partial regions formed by the division; and by synthesizing the photographed image data for the partial regions which is obtained by detecting, with said partial radiation detector, the radiation which permeates said subject, for each of the partial regions, said photographed image data for said entire detection region is obtained, wherein the partial radiation detector is operable to partially overlap adjacent partial regions during detection to obtain the photographed image data for said entire detection region.