When a reception unit in an X-ray image reception system receives an image and additional information for the image from an X-ray image transmission system, the received additional information is sent to a resend setting determination unit. The resend setting determination unit determines a resend setting based on the received additional information and information acquired from a database and transmits the result to a reception completion determination unit. A packet loss determination unit determines packet loss in data received from the reception unit and transmits the result to the reception completion determination unit. The reception determination completion unit sends the results to the resent setting determination unit and the packet loss determination unit to the resend request unit. The resend request unit sends a resend request to the X-ray image transmission system based on the information from the reception unit and the result determined by the reception completion determination unit.