Image monitoring during an interventional procedure, X-ray device, computer program and data medium

摘要

A method is provided for image monitoring during an interventional procedure by at least one instrument in a patient's vascular system having vessels. The method includes checking, using positional data of the instrument, whether at least a part of the instrument lies outside of the vessels described by the vascular dataset. If at least a part of the instrument lies outside of the vessel through which the instrument is guided and which is described by the vascular dataset, the method further includes determining an adjusted centerline for the vessel in such a way that the part of the instrument molds itself to fit the boundary of the vessel described by the adjusted centerline, updating the vascular dataset on the basis of the adjusted centerline, and determining the overlay image from the updated vascular dataset.

主权项

1. A method for image monitoring during an interventional procedure by at least one instrument in a patient's vascular system having vessels, wherein at least one two-dimensional or three-dimensional preoperative vascular dataset comprising a centerline of a vessel and a description of a boundary of the vessel parameterized by the centerline is used to generate an overlay image depicting the vascular system for the purpose of overlaying an X-ray image depicting the instrument during the intervention, wherein the X-ray image and the vascular dataset are registered with one another, the method comprising:
checking, using positional data of the instrument, whether at least a part of the instrument lies outside of the vessel described by the vascular dataset; determining an adjusted centerline for the vessel such that the part of the instrument identified to lie outside of the vessel is positioned at the boundary of the vessel described by the adjusted centerline; updating the vascular dataset based on the adjusted centerline; and determining the overlay image from the updated vascular dataset.