An apparatus for displaying an ultrasonic image and information associated with the image, the apparatus comprising: a storage unit which is configured to store a plurality of cross-section images of a plurality of scanned cross-sections of a target object and a plurality of pieces of image-related information respectively associated with the plurality of cross-section images; an image acquisition unit which acquires an ultrasonic image of the target object; a selection unit which is configured to select at least one of the plurality of cross-section images based on a similarity between the ultrasonic image and each of the plurality of cross-section images; an extraction unit which is configured to extract image-related information associated with the selected cross-section image from the storage unit; and a display unit which is configured to display the extracted image-related information and the acquired ultrasonic image, wherein the image-related information pieces comprise at least one of information about a scan method for the target object, information about a biopsy of the target object, information about a measurement item of the target object, information about a measuring standard scales of the target object measurement and information about a display of the target object, wherein the selection unit comprises a comparison unit which is configured to determine a similarity between the acquired ultrasonic image and each of the plurality of cross-section images by comparing the acquired ultrasonic image with each of the plurality of cross-section images, and the selected cross-section image is a cross-section image having a highest similarity to the acquired ultrasonic image from among the plurality of cross-section images characterised in that the extraction unit comprises a determination unit which is configured to determine priorities of the image-related information pieces based on relations of the image-related information pieces with the selected cross-section image, and the extraction unit is configured to extract the image-related information pieces according to the determined priorities, and wherein the extraction unit is further configured to extract as image-related information pieces, measurement items directly applicable to the acquired ultrasonic image, based on priorities determined according to relations of the measurement items with the selected cross-section image, wherein the display unit is configured to display a list in which the measurement items directly applicable to the acquired ultrasonic image are listed based on the priorities. a storage unit which is configured to store a plurality of cross-section images of a plurality of scanned cross-sections of a target object and a plurality of pieces of image-related information respectively associated with the plurality of cross-section images; an image acquisition unit which acquires an ultrasonic image of the target object; a selection unit which is configured to select at least one of the plurality of cross-section images based on a similarity between the ultrasonic image and each of the plurality of cross-section images; an extraction unit which is configured to extract image-related information associated with the selected cross-section image from the storage unit; and a display unit which is configured to display the extracted image-related information and the acquired ultrasonic image, wherein the image-related information pieces comprise at least one of information about a scan method for the target object, information about a biopsy of the target object, information about a measurement item of the target object, information about a measuring standard scales of the target object measurement and information about a display of the target object, wherein the selection unit comprises a comparison unit which is configured to determine a similarity between the acquired ultrasonic image and each of the plurality of cross-section images by comparing the acquired ultrasonic image with each of the plurality of cross-section images, and the selected cross-section image is a cross-section image having a highest similarity to the acquired ultrasonic image from among the plurality of cross-section images characterised in that the extraction unit comprises a determination unit which is configured to determine priorities of the image-related information pieces based on relations of the image-related information pieces with the selected cross-section image, and the extraction unit is configured to extract the image-related information pieces according to the determined priorities, and wherein the extraction unit is further configured to extract as image-related information pieces, measurement items directly applicable to the acquired ultrasonic image, based on priorities determined according to relations of the measurement items with the selected cross-section image, wherein the display unit is configured to display a list in which the measurement items directly applicable to the acquired ultrasonic image are listed based on the priorities.