3D cerebrovascular segmentation combining fuzzy vessel enhancement and level-sets with anisotropic energy weights

Brain Structural and Vascular Anatomy Is Altered in Offspring of Pre-Eclamptic Pregnancies: A Pilot Study

“…[20][21][22] On the basis of the resulting vessel segmentation, the 3D vessel centerline representation and the corresponding vessel radius for each voxel of the vessel centerline were then calculated by using the method described by Forkert et al (Figure). 23 Due to different FOVs of the TOF-MRA acquisition and to enable an analysis of the regional vascular alterations, parcellation of each brain into anatomic substructures was required.…”

Aneurysm Recurrence Volumetry Is More Sensitive than Visual Evaluation of Aneurysm Recurrences

“…1a) was manually defined in the 6FU and 12FU datasets, which was supposed to serve as a prealignment of the two VOIs and to decrease the computation time for the subsequent rigid registration. For a further reduction of the computation time as well as for improved registration results, a segmentation of the cerebrovascular system in the 6FU VOI employing the methods described by Forkert et al [15,16] was used as a mask for the registration process ( Fig. 1b), such that only voxels of the cerebrovascular system within the VOI contribute to the registration process.…”

Aligning 3D time-of-flight MRA datasets for quantitative longitudinal studies: evaluation of rigid registration techniques

“…Fourth, the cerebrovascular system was segmented in the image sequence exhibiting less vessel structures using fuzzy enhancement and a level-set segmentation approach [19,20] and used for a masked registration. Therefore, the cerebrovascular system was segmented in the BL image sequences of the acute stroke datasets and in the FU image sequence of the aneurysm datasets.…”