Selection method for two a contrast agent for use in a dual - energy - ct - examination, contrast agent combination and the production of ct - receptacles with a contrast agent combination with different energy spectra

摘要

The present invention relates to a process for the selection of two a contrast agent for use in a dual - energy - ct - examination of a patient, by determination of the pitch (m) (= base pitch) of a connecting line in a hu - values - diagram of the energy-specific hu - values between a first material or a first type of fabric (g1) and a second material, or a second type of fabric (g2), selection of a first contrast medium (k1) with an enhancement - pitch (m₁), which is significantly higher than the determined base pitch (m), and selection of a second contrast medium (k2), whose enhancement (m₂) in the significance of region of the determined base pitch (m) is.Furthermore, the invention relates to a selected to provide a contrast agent combination and the production of ct - receptacles with such a selected contrast agent combination with the aid of different energy spectra.