The cortical folding of the human brain is highly complex and variable across individuals. Mining the major patterns of cortical folding from modern large-scale neuroimaging datasets is of great importance in advancing techniques for neuroimaging analysis and understanding the inter-individual variations of cortical folding and its relationship with cognitive function and disorders. As the primary cortical folding is genetically influenced and has been established at term birth,neonates with the minimal exposure to the complicated postnatal environmental influence are the ideal candidates for understanding the major patterns of cortical folding. In this paper,for the first time,we propose a novel method for discovering the major patterns of cortical folding in a large-scale dataset of neonatal brain MR images (N = 677). In our method,first,cortical folding is characterized by the distribution of sulcal pits,which are the locally deepest points in cortical sulci. Because deep sulcal pits are genetically related,relatively consistent across individuals,and also stable during brain development,they are well suitable for representing and characterizing cortical folding. Then,the similarities between sulcal pit distributions of any two subjects are measured from spatial,geometrical,and topological points of view. Next,these different measurements are adaptively fused together using a similarity network fusion technique,to preserve their common information and also catch their complementary information. Finally,leveraging the fused similarity measurements,a hierarchical affinity propagation algorithm is used to group similar sulcal folding patterns together. The proposed method has been applied to 677 neonatal brains (the largest neonatal dataset to our knowledge) in the central sulcus,superior temporal sulcus,and cingulate sulcus,and revealed multiple distinct and meaningful folding patterns in each region.
|Title of host publication||Medical Image Computing and Computer-Assisted Intervention - MICCAI 2016 - 19th International Conference, Proceedings|
|Editors||Sebastian Ourselin, Leo Joskowicz, Mert R. Sabuncu, William Wells, Gozde Unal|
|Number of pages||9|
|Publication status||Published - 2016|
|Event||1st International Workshop on Simulation and Synthesis in Medical Imaging, SASHIMI 2016 held in conjunction with 19th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2016 - Athens, Greece|
Duration: 2016 Oct 21 → 2016 Oct 21
|Name||Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)|
|Other||1st International Workshop on Simulation and Synthesis in Medical Imaging, SASHIMI 2016 held in conjunction with 19th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2016|
|Period||16/10/21 → 16/10/21|
Bibliographical noteFunding Information:
This work was supported in part by UNC BRIC-Radiology start-up fund and NIH grants (MH107815, MH108914, MH100217, HD053000, and MH070890).
© Springer International Publishing AG 2016.
ASJC Scopus subject areas
- Theoretical Computer Science
- Computer Science(all)