A method for operating an x-ray device, (e.g., a fluoroscope), is described herein. The method includes: creating planning information for a therapeutic intervention into a body vessel segment based on a reconstruction of the body vessel segment providing the planning information to a processing unit of the x-ray device providing the reconstruction of the body vessel segment to the processing unit creating a recording of the body vessel segment introduced into a recording region of the x-ray device registering the reconstruction of the body vessel segment with the body vessel segment in the recording region of the x-ray device displaying the recording of the body vessel segment on a display device of the x-ray device and superimposing a graphical representation of the planning information on the recording displayed on the display device, in order to increase the efficiency of the therapeutic intervention into the body vessel segment.
