Patent ID: 8170646

Claim:
A dynamic radiographic image obtaining apparatus for obtaining a dynamic radiographic image of a periodically moving subject, the apparatus comprising: a dynamic signal detecting means for detecting a dynamic signal of the subject; an image obtaining means for obtaining a plurality of radiographic images of the subject by irradiating radiation on the subject from one direction and detecting the radiation passed through the subject; a control means for allocating a plurality of time phases to each of predetermined periods of the dynamic signal detected by the dynamic signal detecting means, and controlling the image obtaining means such that the radiographic images of the subject are obtained at respective time phases that differ from one predetermined period to another; a storing means for storing the radiographic images obtained with time phase information and the dynamic signal which was detected during obtainment of the radiographic image correlated therewith; and a dynamic image generating means for selecting between modes of obtaining radiographic images, said modes including a dynamic radiographic mode wherein the radiographic image is a series of images coordinated with the plurality of time phases in order, which are correlated and stored with the radiographic image, said modes further including an interpolated image generating mode, wherein an interpolated image generating means interpolates the plurality of obtained radiographic images of adjacent time phases corresponding to the time phase represented by the time phase information and for arranging the selected radiographic images in the order of the time phases, each being stored and correlated with each corresponding radiographic image among the radiographic images, from a radiographic image obtained at a time phase closest to a starting point of the each of the predetermined periods of the dynamic signal.