Patent Document ID: 20090207971
Application ID: 12357537
Patent Status: 0

Claim One:
1. A method for the oriented depiction of recordings of a region to be imaged which is recorded in at least two recording steps using a navigation system comprising the following features: an x-ray detector comprising an x-ray source which is arranged opposite it, which can be jointly moved with respect to each other and with respect to the region to be imaged, in a relationship which can be predetermined; a stereo recording system, for instance a stereo camera; multiple marker devices which are assigned to the x-ray detector and the region to be imaged, and which can be at least partially detected by the stereo recording system; wherein the method comprises the following steps: a) a first recording of the region to be imaged is initiated by the x-ray apparatus in a first position, wherein a first control signal is output; b) the first control signal causes the stereo recording system to detect first marker positions of the multiple marker devices on the x-ray detector and the region to be imaged; c) data concerning the first marker positions is stored; d) the data concerning the first marker positions is correlated, with computer assistance, with image points of the x-ray recording, in order to register the x-ray recording; e) a first position of the x-ray source relative to the detector is ascertained and stored; f) with the aid of the registration, the position of the source in the coordinate system of the region to be imaged is determined and stored; g) the x-ray detector is moved, together with the x-ray source, relative to the region to be imaged into a second position for a second recording, wherein changes in the position of the detector are detected during the movement, and a second position of the source is determined by means of the first relative position; h) a second recording is initiated at the second position, wherein a second control signal is output; i) the second control signal causes the stereo recording system to detect second marker positions of the marker devices on the x-ray detector and the region to be imaged; j) the data concerning the second marker positions is correlated, with computer assistance, with image points of the x-ray recording, in order to register the second x-ray recording; k) an additional position is ascertained from the second position and the first position; l) by means of the additional position, the recordings are registered and displayed in a superimposed way.