| 摘要 |
The invention relates to a system and a method for the guidance of a catheter ( 20 ) with an electrode ( 21 ) in an electrophysiological procedure. A sequence of images (I 1 , . . . Ik, . . . ) of the catheter ( 20 ) and of a resting reference catheter ( 30 ) is generated with an X-ray device ( 10 ) and stored together with the associated electrographic recordings from the electrodes (21, 31). A reference image (Ik) may then be selected from said sequence that corresponds to a desired electrographic pattern (Ek). In a next step, the positions (T, R) of the catheters ( 20, 30 ) are localized on the reference image (Ik), wherein the position (R) of the reference catheter ( 30 ) can be identified with the position of this catheter ( 30 ) on an actual image (I). Thus it is possible to determine on the actual image also a target position (T' for the catheter ( 20 ) that corresponds to the position (T) of this catheter ( 20 ) on the reference image (Ik). Said target position (T) may finally be indicated on a monitor ( 60 ) to assist the guidance of the catheter ( 20 ) to a desired location.
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