Positioning apparatus for adjusting a posture of a patient (P) for an imaging and/or interventional and/or a therapeutic examination of the patient (P), comprising: - a patient support device , the patient support device being adjustable such that one or more body segments of the patient (P) may be arranged and/or fixed in a predetermined posture; - an interface unit , configured to provide examination information (EI) indicative of an examination to be performed at the patient (P); and - a computing unit configured to: ▪ receive (S10) the examination information (EI) via the interface unit ; ▪ determine (S30), based on the examination information (EI), a posture of one or more body segments of the patient (P) for the examination; ▪ generate (S40) one or more control signals (CS), the one or more control signals (CS) being suited to control the patient support device such that the patient support device is adjusted such that the one or more body segments of the patient (P) are arranged and/or fixed in the determined posture; and provide (S50) the control signals (CS) to the patient support device , wherein: - the examination information (EI) includes an information about a previous posture previously determined for the patient in a prior examination, wherein the information about the previous posture comprises medical image data depicting a region of interest targeted in the prior examination; and - the computing unit is configured to determine (S30) the posture by identifying a region of interest of the patient targeted in the prior examination from the information about the previous posture by processing the medical image data acquired in the prior examination and determining the posture based on the identified region of interest. - a patient support device , the patient support device being adjustable such that one or more body segments of the patient (P) may be arranged and/or fixed in a predetermined posture; - an interface unit , configured to provide examination information (EI) indicative of an examination to be performed at the patient (P); and - a computing unit configured to: ▪ receive (S10) the examination information (EI) via the interface unit ; ▪ determine (S30), based on the examination information (EI), a posture of one or more body segments of the patient (P) for the examination; ▪ generate (S40) one or more control signals (CS), the one or more control signals (CS) being suited to control the patient support device such that the patient support device is adjusted such that the one or more body segments of the patient (P) are arranged and/or fixed in the determined posture; and ▪ receive (S10) the examination information (EI) via the interface unit ; ▪ determine (S30), based on the examination information (EI), a posture of one or more body segments of the patient (P) for the examination; ▪ generate (S40) one or more control signals (CS), the one or more control signals (CS) being suited to control the patient support device such that the patient support device is adjusted such that the one or more body segments of the patient (P) are arranged and/or fixed in the determined posture; and - the examination information (EI) includes an information about a previous posture previously determined for the patient in a prior examination, wherein the information about the previous posture comprises medical image data depicting a region of interest targeted in the prior examination; and - the computing unit is configured to determine (S30) the posture by identifying a region of interest of the patient targeted in the prior examination from the information about the previous posture by processing the medical image data acquired in the prior examination and determining the posture based on the identified region of interest. <EOS>