A method for planning an infusion of a medical liquid by an infusion apparatus comprising an infusion device, wherein the method comprises the steps of: acquiring planning scan data which represent a medical image of at least a body region (3) of a patient and are obtained by a planning scan before the infusion device is positioned； determining a planned device position from the planning scan data； acquiring verification scan data which represent a medical image of the region of the patient after the infusion device has been positioned； determining a source volume of the liquid from the verification scan data； and determining infusion parameters from the verification scan data and the source volume.
