A method is for output of position information of a medical instrument, configured to penetrate at least partly an area of the body of a patient. A structure image, an instrument image and an operation scene image are registered with one another. A registered structure image, a registered instrument image and a registered operation scene image are produced from the registration. An overlay image is displayed with a VR or AR display facility, including at least parts of the registered structure image of the registered operation scene image (BrO)—or the real view of the corresponding part of the real area of the body—and of the registered instrument image. A corresponding image generation system is also disclosed.