1. A method for the computer-assisted visualization of a three-dimensional anatomical object, comprising the following method steps: a) recording two or more diagnostic image data records of the object wherein at least one image data record comprises morphological image information of the anatomical object and at least one further image data record comprises functional image information relating to the anatomical object; b) defining an imaging specification for imaging the image data onto a common two-dimensional display plane, the definition of the imaging specification involving an identification of anatomical features of the object in at least one of the image data records and a determination of an object volume delimited by a curved surface in which the anatomical features of the object are contained; c) calculating a combined two-dimensional representation by imaging the two or more image data records according to the previously defined imaging specification onto the common two-dimensional display plane wherein a projection of the image information of the data records that is contained in the object volume is calculated during the calculation of the combined two-dimensional representation, wherein in order to calculate the combined two-dimensional representation, Cartesian coordinates within the common two-dimensional display plane are assigned to non-Cartesian surface coordinates of the curved surface.