METHOD FOR GENERATING A CONTRAST MEDIUM-ASSISTED X-RAY IMAGE AND X-RAY SYSTEM

摘要

The invention relates to a method for generating at least one x-ray image of a patient (P) having incorporated contrast medium, using x-rays having an energy spectrum and an x-ray detector, the energy spectrum used being modified by at least one first filter (3) arranged in the beam path (7) in front of the patient (P), the patient (P) absorbing a dose in order to generate detector data for the x-ray image and the x-ray image having a CNR value which represents the ratio of the maximum contrast in the image to the noise. According to the invention, the energy spectrum and contrast medium are matched to each other, taking into account the thickness of the patient (P) to be x-rayed, by means of an additional filter (1), in such a way that an optimization criterion which is taken from an x-ray image that is generated or simulated by means of trials is maximized. Furthermore, the invention also relates to an x-ray system (C1) for generating at least one x-ray image of a patient (P) with incorporated contrast medium by carrying out the above-described method, and to the application of the x-ray system in various examinations.