METHOD FOR ACQUIRING POSITIONAL INFORMATION FOR CORRECTION, METHOD FOR CORRECTING POSITIONAL DEVIATION, IMAGE PROCESSOR, RADIATION IMAGING APPARATUS, AND MEASUREMENT PHANTOM

摘要

PROBLEM TO BE SOLVED: To provide a method for acquiring positional information for correction, a method for correcting positional deviation, an image processor, a radiation imaging apparatus, and a measurement phantom which superimpose a two-dimensional transmission image on a three-dimensional reconstituted image and outputs them in detail without time and effort.;SOLUTION: The measurement phantom having a plurality of markers on a face formed by movement of an imaging system 2 is used to superimpose the two-dimensional transmission image of the measurement phantom on the three-dimensional reconstituted image of the measurement phantom, and to output the images on a superimposing screen 36. Objects of superposition, namely, the images of the measurement phantom are moved on the screen so that the corresponding markers appearing in the superimposed and outputted images are superimposed with one another. Positional deviations, observed when superimposing and outputting the two-dimensional transmission image on the three-dimensional reconstituted image of the subject, are corrected on the screen through the movement by referring to a correction table 32 which stores correspondence between a plurality of pieces of positional information for correcting the measurement phantom and moved positions of the imaging system 2.;COPYRIGHT: (C)2010,JPO&INPIT