A medical image processing device is disclosed. The disclosed medical image processing device may comprise: an input interface for receiving input in the form of a depth adjustment command from a user; an image processing and control unit for superimposing part or all of CT image data in a view direction so as to generate a two-dimensional reconstructed image, and for changing the contrast of at least part of the two-dimensional reconstructed image with respect to the depth adjustment command; and a display unit for displaying the two-dimensional reconstructed image.