To clear the correspondence between an examination content contained in reservation data and a medical imaging apparatus when the reservation data of a plurality of medical imaging apparatuses are displayed by a control unit in a medical treatment site such as a hospital, or the like.

A controller receives the reservation data (e.g. ID, a name, the distinction of sex, the date of birth, a comment, or the like) and the examination content of a patient periodically transmitted from a server. At this time, a CPU of the controller reads a radiation imaging apparatus corresponding to the examination content (examination region) among the received reservation data and an icon corresponding to the radiation imaging apparatus from a table to a RAM. Then, the CPU forms a display screen G1 on the basis of the received reservation data and the radiation imaging apparatus and the icon read out to the RAM to display the same on a display part.