| 摘要 |
A navigation system, particularly for navigation-guided biopsies or surgical interventions at moving body parts, particularly at the heart, wherein the position of a device (pointer, tool, surgical instrument or the like), provided with position sensors and displaced in the body, is mixed into a pre-operatively produced image dataset, has an EKG device or a respiration device for generating a trigger signal at the given phase of the pre-operative production of the image dataset. The coordinates of the position sensors are mixed into the pre-operative image only in the trigger time.
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