1. A method of imaging a breast of a human, which method comprises: (i) having a patient lie prone on a computer-controlled couch, which comprises a channel or left and right openings and which optionally comprises a top layer of a self-molding medium and/or one or two breast shields, which are removably attached to the couch or slidably mounted to the channel, and position the left or right breast of the patient in the channel or the left or right opening, respectively, for imaging; and (ii) repeatedly imaging the breast using a scanning x-ray source while moving the couch down and up, such that the breast moves down and up in the field between the source of radiation and the detector, whereupon the breast of a human is imaged.