An imaging member (34) is provided that includes: a pressing plate (33) configured to press a breast (W) of a subject； and an ultrasonography member (35) having a first surface on which an acoustic matching member (92) having fluidity is provided, and a second surface that is provided on a surface of the pressing member via a coupling material (90) having lower fluidity than the acoustic matching member. A radiographic image may be captured in a state where the acoustic matching member and the coupling material are not provided on the pressing plate. When capturing an ultrasound image of the breast, the acoustic matching member such as echo jelly is provided, and the coupling material is provided to prevent degradation of the image quality due to an air layer between the pressing plate and the ultrasonography member. Also disclosed are a control device, a medical imaging system, an imaging method, a control method and a control program.
