Time maximum‐intensity projection of unregistered images used for automated segmentation of aorta ROI. The 2% voxels with highest signal intensity are highlighted red and blue. The blue voxels denote the largest connected component, that is, the aorta. As caudal as possible in this component, a 5 × 8 voxel ROI is delineated in green. Although not clearly visible in this time maximum‐intensity projection, an inflow artefact also is present in the cranial parts of the aorta in this subject. ROI, region of interest.