A radiation tomographic imaging apparatus is characterized in comprising: a first reconstructing section for reconstructing a plurality of temporally different first radiation tomographic images for a required slice position； an information-on-movement acquiring section for acquiring information on movement of a body part in a subject based on the plurality of first radiation tomographic images； an information creating section for creating a motion profile MP indicating a temporal change of the information on movement； an identifying section for identifying a time Ts when motion of the body part in the subject stops based on the motion profile MP； and a second reconstructing section for reconstructing a second radiation tomographic image for the subject at the time Ts.
