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| DOI | 10.3389/FNINF.2017.00073 | ||||
| Año | 2017 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Human brain connectivity is extremely complex and variable across subjects. While long association and projection bundles are stable and have been deeply studied, short association bundles present higher intersubject variability, and few studies have been carried out to adequately describe the structure, shape, and reproducibility of these bundles. However, their analysis is crucial to understand brain function and better characterize the human connectome. In this study, we propose an automatic method to identify reproducible short association bundles of the superficial white matter, based on intersubject hierarchical clustering. The method is applied to the whole brain and finds representative clusters of similar fibers belonging to a group of subjects, according to a distance metric between fibers. We experimented with both affine and non-linear registrations and, due to better reproducibility, chose the results obtained from non-linear registration. Once the clusters are calculated, our method performs automatic labeling of the most stable connections based on individual cortical parcellations. We compare results between two independent groups of subjects from a HARDI database to generate reproducible connections for the creation of an atlas. To perform a better validation of the results, we used a bagging strategy that uses pairs of groups of 27 subjects from a database of 74 subjects. The result is an atlas with 44 bundles in the left hemisphere and 49 in the right hemisphere, of which 33 bundles are found in both hemispheres. Finally, we use the atlas to automatically segment 78 new subjects from a different HARDI database and to analyze stability and lateralization results.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | ROMAN-GODOY, CLAUDIO ESTEBAN | Hombre |
Universidad de Concepción - Chile
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| 2 | GUEVARA-OLIVARES, MIGUEL ENRIQUE | Hombre |
Universidad de Concepción - Chile
|
| 3 | VALENZUELA-FICA, RONALD ALFONSO | Hombre |
Universidad de Concepción - Chile
|
| 4 | FIGUEROA-YEVENES, MAXIMILIANO | Hombre |
Universidad de Concepción - Chile
|
| 5 | Houenou, Josselin | Hombre |
CEA - Francia
Univ Paris Est - Francia Institut d'Imagerie Biomédicale - Francia Université Paris-Est - Francia Commissariat a l'Energie Atomique et aux Energies Alternatives - Francia AP-HP Assistance Publique - Hopitaux de Paris - Francia |
| 6 | Duclap, D. | Mujer |
CEA - Francia
Institut d'Imagerie Biomédicale - Francia Commissariat a l'Energie Atomique et aux Energies Alternatives - Francia |
| 7 | Poupon, C. | Hombre |
CEA - Francia
Institut d'Imagerie Biomédicale - Francia Commissariat a l'Energie Atomique et aux Energies Alternatives - Francia |
| 8 | Mangin, Jean-Francois | Hombre |
CEA - Francia
Institut d'Imagerie Biomédicale - Francia Commissariat a l'Energie Atomique et aux Energies Alternatives - Francia |
| 9 | GUEVARA-ALVEZ, PAMELA BEATRIZ | Mujer |
Universidad de Concepción - Chile
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| Fuente |
|---|
| FONDECYT |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Comisión Nacional de Investigación Científica y Tecnológica |
| Comisión Nacional de Investigación CientÃfica y Tecnológica |
| Fondo Nacional de Desarrollo CientÃfico y Tecnológico |
| Horizon 2020 |
| CONICYT-PIA-Anillo |
| Horizon 2020 Framework Programme |
| California Earthquake Authority |
| European CONNECT project |
| CONICYT Chile grants CONICYT-PIA-Anillo |
| CONICYT Chile grant |
| European Union's Horizon Framework Programmed for Research and Innovation |
| Federative Research Institute 49 |
| HIPPIP European grant |
| Federative Research Institute |
| Centro de Ecologia Aplicada |
| Agradecimiento |
|---|
| This work was supported by CONICYT Chile grant, FONDECYT #1161427. It was also partially funded by CONICYT Chile grants CONICYT-PIA-Anillo ACT1416 and FONDECYT #1151278, and by European Union's Horizon 2020 Framework Programmed for Research and Innovation under grant agreements No. 720270 (Human Brain Project SGA1) and No. 604102 (HBPs ramp-up phase). The "CONNECT/Archi Database" is the property of the CEA I2BM NeuroSpin centre and was designed under the supervision of Dr Cyril Poupon and Dr Jean-Francois Mangin and was funded by the Federative Research Institute 49, the HIPPIP European grant, and the European CONNECT project (http://www.brain-connect.eu). Acquisitions were performed by the scientists involved in the Multi-scale Brain Architecture research program of NeuroSpin and by the staff of the UNIACT Laboratory of NeuroSpin (headed by Dr Lucie Hertz-Pannier), under the ethical approval CPP100002/CPP100022 (principal investigator Dr Denis Le Bihan). The database can be requested from cyril.poupon@cea. fr and will be available from the Human Brain Project in a near future. |
| This work was supported by CONICYT Chile grant, FONDECYT #1161427. It was also partially funded by CONICYT Chile grants CONICYT-PIA-Anillo ACT1416 and FONDECYT #1151278, and by European Union’s Horizon 2020 Framework Programmed for Research and Innovation under grant agreements No. 720270 (Human Brain Project SGA1) and No. 604102 (HBPs ramp-up phase). The “CONNECT/Archi Database” is the property of the CEA I2BM NeuroSpin centre and was designed under the supervision of Dr Cyril Poupon and Dr Jean-François Mangin and was funded by the Federative Research Institute 49, the HIPPIP European grant, and the European CONNECT project (http://www.brain-connect.eu). Acquisitions were performed by the scientists involved in the Multi-scale Brain Architecture research program of NeuroSpin and by the staff of the UNIACT Laboratory of NeuroSpin (headed by Dr Lucie Hertz-Pannier), under the ethical approval CPP100002/CPP100022 (principal investigator Dr Denis Le Bihan). The database can be requested from cyril.poupon@cea. fr and will be available from the Human Brain Project in a near future. |