Patent ID: 8620408

Claim:
A method for representing two-dimensional projection images of an examination object showing a variation of a distribution of a contrast medium over time in the examination object, comprising: subdividing a two-dimensional project image that is to be displayed from the two-dimensional projection images into a grid pattern having a plurality of parcels in a perfusion region of the examination object, wherein each of the parcels has a predetermined shape and each parcel includes a plurality of pixels; determining a characteristic value for each parcel in the perfusion region; determining a projection color for the each parcel based on the characteristic value; assigning the projection color to the each parcel; outputting a subarea of the two-dimensional projection image comprising the perfusion region with the each parcel in the perfusion region being represented by the assigned projection color; providing a computer for performing said steps of subdividing a two-dimensional project image, determining a characteristic value, determining a projection color, assigning the projection color and outputting a subarea of the two-dimensional projection image; and recording the two-dimensional projection images on an image recording device.