Patent ID: 11179202

Abstract:
A method is described for planning intracorporeal positioning of a puncture needle to be introduced percutaneously into a patient on the basis of a puncture plan, said method comprising the following steps: a) arranging a needle guide means in a spatially fixed manner on the patient; b) generating and storing a series of cross-sectional images, each containing spatially resolved image information of the patient and of the needle guide means attached in a spatially fixed manner to the patient in a first coordinate system, using an imaging diagnostic method; c) selecting and visually displaying at least one cross-sectional image or a numerically generated cross-sectional image from the series of stored cross-sectional images; d) superimposing a virtual, positionally variable linear trajectory on the basis of the selected cross-sectional image; e) positioning the virtual linear trajectory on the basis of the puncture plan to obtain a target linear trajectory, in which the virtual linear trajectory traverses the needle guide means; f) numerically determining spatial coordinates of two separate spatial points, or traverse points, within the first coordinate system, at which traverse points the target linear trajectory traverses the needle guide means; g) transforming the spatial coordinates relating to the needle guide means and to the traverse points to a second coordinate system; and h) visually displaying the needle guide means within the second coordinate system in such a manner that the traverse points are shown visibly marked on the needle guide means.