Patent ID: 8977029
Filing Date: 2015-03-10
Classification: G06T

Abstract:
1. A method for segmenting brain structures and vessel territories in a brain computed tomography (CT) image comprising: receiving a brain CT image of a patient; individually registering each of a plurality of atlas images to the brain CT image, resulting in a plurality of warped atlas images; defining a region of interest in each of the plurality of warped atlas images based on labeled brain structures in each of the plurality of warped atlas images; for each of the plurality of atlas images, calculating a respective sum of squared difference (SSD) value between a corresponding warped atlas image and the brain CT image within the respective region of interest defined for the corresponding warped atlas image; selecting a number of the plurality atlas images based on the respective SSD value calculated for each of the plurality of atlas images; and segmenting brain structures and vessel territories in the brain CT image using the selected number of the plurality of atlas images.