1. An X-ray CT apparatus comprising: a scanning table configured to support a subject thereon and to move the subject within the X-ray CT apparatus; a scanning gantry comprising: an X-ray generator; an X-ray detector configured to detect X-rays generated by the X-ray generator, the X-ray detector positioned in opposition to the X-ray generator; and a rotation device configured to rotate the X-ray generator and the X-ray detector, the X-ray generator configured to expose the X-rays to the subject moved by the scanning table while the X-ray generator and the X-ray detector are rotated about the subject, the scanning gantry configured to perform a scan including detecting the X-rays transmitted through the subject at the X-ray detector to acquire X-ray projection data; a scanning condition setting device configured to set parameters for controlling a movement of the scanning table along a moving direction during the scan, the parameters including an acceleration and a deceleration of the movement of the scanning table; a predicting device configured to predict a plurality of positions of the scanning table along the moving direction for each view of the scan by calculating the plurality of positions of the scanning table using the parameters set by the scanning condition setting device; and an image reconstructing device configured to reconstruct a plurality of tomographic images within a range scanned during the acceleration and the deceleration of the movement of the scanning table along the moving direction by reconstructing the X-ray projection data, wherein the X-ray projection data is correlated to the plurality of predicted positions.