Method and x-ray system for computer-aided detection of structures in x-ray images

摘要

The present invention relates to an X-ray imaging technique and image post-processing. In particular, the present invention relates to a method and X-ray system for computer-aided detection of structures in X-ray images. A computer-aided detection algorithm visually determines the tissue structure in the X-ray image information and then matches the determined tissue structure shape with a library of known tissue structures to characterize the determined tissue structure type . The determination of the tissue structure and thus the characterization of the type of tissue structure can be improved using also spectral information, in particular energy information of the acquired X-ray images. Thus, a method (70, 80, 90) for computer-aided detection of structure and X-ray images, the step (72) of obtaining spectral X-ray image information of an object, said spectral X-ray image information Forming at least one X-ray image and detecting a tissue structure of interest in the X-ray image by using a computer-aided detection algorithm (74), wherein The step of detecting a tissue structure of interest is adapted such that the computer-aided detection algorithm evaluates the X-ray image for a tissue structure shape and compares the tissue structure shape to a plurality of predetermined tissue structure shapes. And the computer-aided detection algorithm includes the X-ray image to detect the tissue structure of interest. Are adapted to evaluate the spectral information, a method is provided.