METHOD AND APPARATUS TO CORRECT DISTORTIONS IN MAGNETIC RESONANCE DIFFUSION IMAGES

摘要

In a method and apparatus to correct distortions in magnetic resonance diffusion images, a distortion model is provided to a computer, at least one reference image is acquired, multiple diffusion images are acquired and after the acquisition of one diffusion image of the multiple diffusion images the following steps are executed in the computer. The diffusion image is brought into registration with the at least one reference image, the distortion model is adapted using the result of the registration, and distortions of the diffusion image are corrected using the distortion model.

主权项

1. A method to correct distortions in diffusion images of an examination subject, comprising:
providing a computer with a distortion model; providing said computer with a reference image; providing said computer with multiple diffusion images acquired with a magnetic resonance apparatus; in said computer, bringing one of said multiple diffusion images into registration with said reference image; in said computer, automatically adapting said distortion model using a result of the registration of said one of said diffusion images with said reference image; in said computer, automatically correcting distortions in said one of said diffusion images using the adapted distortion model, thereby producing a corrected diffusion image; and making said corrected diffusion image available in electronic form at an output of said computer.