A device and method are provided for supplying a medium to an object of interest, such as a patient to be scanned for image acquisition. The device comprises an arc-shaped member and a support for said arc-shaped member, wherein the arc-shaped member is configured to support a radiation source on one end and a detector on another end to scan the object of interest, and the support comprises a gantry with a rotatable support arm supporting the arc-shaped member. The device further comprises at least one medium supply unit mounted on the gantry. The supply unit is connectable to a cable that is guided in the vicinity or in the region of the axis of rotation of the support arm so that the object of interest can be supplied with a perfusion or any other medium, while enabling the mobile imaging device to rotate around the patient to acquire x-ray images.