1. A method for correcting a motion in an imaging during a medical intervention on a patient, comprising: inserting a medical instrument into a target area of the patient; recording a 3D tomographic image of the target area of the patient comprising the instrument; recording a 2D fluoroscopic image of the target area during the intervention; identifying at least a section of the medical instrument in both the 2D fluoroscopic image and the 3D tomographic image; registering the 2D fluoroscopic image with the 3D tomographic image using said identified section of the medical instrument in the 2D fluoroscopic image and the 3D tomographic image; computing a representation from the 3D tomographic image respectively concurring with the 2D fluoroscopic image based on the registering; due to a movement of the target area in a real time, adjusting in said real time deviations in the concurrent image representation by registering the 2D fluoroscopic image with the computed representation of the 3D tomographic image using said identified section of the medical instrument; and upon performing said adjusting, jointly displaying the 2D fluoroscopic image and the representation of the 3D tomographic image.