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ABLE: Automated Brain Lines Extraction Based on Laplacian Surface Collapse

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Abstract

The archetypical folded shape of the human cortex has been a long-standing topic for neuroscientific research. Nevertheless, the accurate neuroanatomical segmentation of sulci remains a challenge. Part of the problem is the uncertainty of where a sulcus transitions into a gyrus and vice versa. This problem can be avoided by focusing on sulcal fundi and gyral crowns, which represent the topological opposites of cortical folding. We present Automated Brain Lines Extraction (ABLE), a method based on Laplacian surface collapse to reliably segment sulcal fundi and gyral crown lines. ABLE is built to work on standard FreeSurfer outputs and eludes the delineation of anastomotic sulci while maintaining sulcal fundi lines that traverse the regions with the highest depth and curvature. First, it segments the cortex into gyral and sulcal surfaces; then, each surface is spatially filtered. A Laplacian-collapse-based algorithm is applied to obtain a thinned representation of the surfaces. This surface is then used for careful detection of the endpoints of the lines. Finally, sulcal fundi and gyral crown lines are obtained by eroding the surfaces while preserving the connectivity between the endpoints. The method is validated by comparing ABLE with three other sulcal extraction methods using the Human Connectome Project (HCP) test-retest database to assess the reproducibility of the different tools. The results confirm ABLE as a reliable method for obtaining sulcal lines with an accurate representation of the sulcal topology while ignoring anastomotic branches and the overestimation of the sulcal fundi lines. ABLE is publicly available via https://github.com/HGGM-LIM/ABLE.

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Data Availability

The datasets generated during the current study are available from the corresponding author on reasonable request.

Code Availability

The source code of the application is available in https://github.com/HGGM-LIM/ABLE.

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Acknowledgements

Data were provided by the Human Connectome Project, WU-Minn Consortium (Principal Investigators: David Van Essen and Kamil Ugurbil; 1U54MH091657) funded by the 16 NIH Institutes and Centers that support the NIH Blueprint for Neuroscience Research; and by the McDonnell Center for Systems Neuroscience at Washington University.

Funding

This work was supported by the project exAScale ProgramIng models for extreme Data procEssing (ASPIDE), that has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 801091. This work has received funding from “la Caixa” Foundation under the project code LCF/PR/HR19/52160001. Susanna Carmona funded by Instituto de Salud Carlos III, co-funded by European Social Fund “Investing in your future” (Miguel Servet Type I research contract CP16/00096). The CNIC is supported by the Instituto de Salud Carlos III (ISCIII), the Ministerio de Ciencia e Innovación (MCIN) and the Pro CNIC Foundation, and is a Severo Ochoa Center of Excellence (SEV-2015-0505). Yasser Alemán-Gómez is supported by the Swiss National Science Foundation (185897) and the National Center of Competence in Research (NCCR) SYNAPSY - The Synaptic Bases of Mental Diseases, funded as well by the Swiss National Science Foundation (51AU40-1257).

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Yasser Alemán-Gómez, Alberto Fernández-Pena, Daniel Martín de Blas, and Javier Santonja conceived the method. Yasser Alemán-Gómez, Alberto Fernández-Pena, Luis Marcos-Vidal, Pedro M. Gordaliza, and Francisco J. Navas Sánchez conceived the evaluation experiments and analyzed the results. Alberto Fernández-Pena, Daniel Martín de Blas, Susanna Carmona, Joost Janssen, Yasser Alemán-Gómez, and Manuel Desco worked on the redaction of the manuscript. All authors reviewed the manuscript.

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Correspondence to Manuel Desco.

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Manuel Desco and Yasser Alemán-Gómez jointly supervised this work.

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Fernández-Pena, A., Martín de Blas, D., Navas-Sánchez, F.J. et al. ABLE: Automated Brain Lines Extraction Based on Laplacian Surface Collapse. Neuroinform 21, 145–162 (2023). https://doi.org/10.1007/s12021-022-09601-7

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