An X-ray device is provided that includes: an X-ray source configured to provide the X-ray radiation; an X-ray detection unit configured to detect secondary X-ray radiation at least partially transmitted through the object and/or at least partially dispersed by the object, and to provide at least one detector signal as a function of the detected secondary X-ray radiation; and an X-ray analyzer unit configured to analyze the at least one detector signal in order to determine a structure of the object at least in part. The X-ray detection unit is further configured to receive a radio signal, e.g., from a transmitter unit of the treatment instrument positioned in a predefined area of the object and, as a function of the detected radio signal, to provide at least one received signal or analysis by a radio analyzer unit to determine a position of the treatment instrument in relation to the object.