Patent ID: 7798709

Claim:
A computed tomography unit, comprising: at least one marking device configured to positionally accurately mark an intervention position by way of a laser beam on an object to be examined; and a closed rotary frame, the closed rotary frame being configured to hold a recording system arranged in a recording plane, the marking device being attached to the closed rotary frame and being arranged directly in the recording plane of the recording system, wherein the closed rotary frame is configured to rotate completely around the object, the recording system and the at least one marking device are configured to rotate, along with the closed rotary frame, completely around the object within the recording plane, and the at least one marking device is configured to be driveable by way of a control apparatus in such a way that the laser beam is activateable synchronously with a rotational movement of the closed rotary frame to irradiate at least the intervention position in a stationary fashion during the rotational movement, the at least one marking device being configured to irradiate the intervention position by activating once for each rotation of the closed rotary frame.