Patent ID: 11861846
Assignee: BRAINLAB AG
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A computer-implemented method of determining corrections for correcting segmentation of medical image data, which includes a computer-implemented method of determining distributions of corrections for correcting the segmentation of medical image data comprising:
acquiring initial segmented patient image data which describes an initial segmentation of digital medical images of an anatomical body part of a first plurality of patients;
acquiring segmentation correction data which describes a correction of the initial segmentation for each patient of the first plurality of patients;
acquiring atlas data which describes an image-based model of the anatomical body part;
determining correction transformation data based on the segmentation correction data and the atlas data, wherein the correction transformation data describes a transformation for transforming the corrections into a reference system used for describing positions in the image-based model;
determining transformed correction data based on the segmentation correction data and the correction transformation data by applying the transformation to the corrections to determine transformed corrections;
determining combined correction data based on the transformed correction data, wherein the combined correction data describes the results of a statistical analysis of the corrections;

wherein the computer-implemented method of determining corrections for correcting the segmentation of medical image data further comprises steps in which:
segmented individual patient image data is acquired which describes a segmentation of the anatomical body part of the patient in a digital individual medical image;
correction re-transformation data is determined based on the atlas data and the individual patient image data, wherein the correction re-transformation data describes a transformation for transforming the results of the statistical analysis of the corrections into the reference system used for describing positions in the digital individual medical image;
re-transformed correction data is determined based on the combined correction data and the correction re-transformation data; and
corrected segmented patient image data is determined based on the individual patient image data and the re-transformed correction data, wherein the corrected segmented patient image data describes a result of applying the corrections to the segmentation of the anatomical body part of the patient in the digital individual medical image.