| abstract |
Disclosed is a diagnostic agent comprising a complex salt. This salt comprises an anion originating from a complexing acid, such as ethylene-diaminetetraacetic acid, acid, diethylene-triamine-pentacetic or trans-1,2-cyclohexylene-diamine-tetraacetic acid, and a or more central ions of elements of atomic numbers 21 to 29, 42, 44 or 57 to 83, and optionally one or more cations of inorganic or organic bases or of amino acids. This diagnostic agent optionally contains customary additives and is presented in the form of an aqueous solution or suspension. It can be used, for example, for X-ray radiography, for ultrasonic ultrasound or for zeugmatography. |