Methods for tractography-based parcellation of the cortical surface

Project Type: Regular FONDECYT #1190701
Position: Head Researcher
Award Year: 2019. Ending Year: 2021.

Description

The study of the human connectome is an interesting, growing and key research area.  It has led to the creation of initiatives such as the Human Connectome Project (http://www.humanconnectomeproject.org/) and the Human Brain Project (https://www.humanbrainproject.eu/). Their objective is to fully describe the brain’s structure and connections, in order to better understand its functioning. This analysis involves different modalities, such as anatomical, functional, and clinical data, among others.

This ongoing project focuses on contributing to the decoding of the human brain connectome, via the development of methods for the analysis of brain connectivity based on high-quality diffusion Magnetic Resonance Imaging (dMRI) databases. It also aims to develop interactive tools for the analysis of WM bundles and structure, specifically regarding the visualization, segmentation, and manipulation of fiber tractography data.

The main goal of this project is the development of new tractography-based cortical parcellation methods for a better description of the human brain connectome, using high-quality MRI data. These tools will not only help achieve the goal of describing the human connectome, but will contribute to the development of neuroimaging research in Chile as well. This will be of great interest for neuroscientists, neurologists, and neuroanatomist, as it will allow performing more accurate and detailed clinical studies, and thus also answer fundamental questions about brain structure and function.

The specific goals are:

  • The development of a new hybrid cortical parcellation based on the SWM and DWM bundle atlases.

  • The development of a cortical parcellation based on intra- and inter-subject fiber clustering.

  • The development of an interactive tool for the visualization, segmentation, and manipulation of WM fibers.

Undergraduate Theses related to the project

Student Thesis Defense Date
Paulo Olivares Informatics Engineering Thesis (co-advised): “GPGPU implementation of a brain fiber clustering method based on point distribution” May 11th, 2020.
Isaías Huerta Informatics Engineering Thesis (co-advised): “Inter-subject clustering of brain fibers calculated from tractography” January 29th, 2020.
Felipe Silva V. Biomedical Engineering Thesis: “Cortical parcellation method based on a graph representation of brain connections” April 1st, 2019.

Postgraduate Theses related to the project

Student Thesis Defense Date
Andrea Vásquez V. Master in Computer Sciences.
“Efficient brain fiber clustering method based on point distribution”
April 16th, 2019.

Publications

2001, 2021

Machine learning to investigate superficial white matterintegrity in early multiple sclerosis

Buyukturkoglu, K; Vergara, C; Fuentealba, V; Tozlu, C; Dahan, JB; Carroll, BE; Kuceyeski, Amy; Riley, CS; Sumowski, JF; Guevara Oliva, C; Sitaram, R; Guevara, P; Leavitt, VM. Machine learning to investigate superficial white matter integrity in early multiple sclerosis. J Neuroimaging. 2021; 1– 12. September 17th, 2021. DOI: https://doi.org/10.1111/jon.12934

Load More Posts

News

Scientists from the “1000 Scientists 1000 Classrooms” Program visit “San José” School in the Month of Science

On August 8th, 2019, professor Pamela Guevara visited the "San José" school to present a talk titled "Study of the [...]

#SoyUdeC: Dr. Pamela Guevara Álvez, leader of the Medical Images Analysis Group #UdeC

University of Concepción featured professor Pamela Guevara in #SoyUdeC, a series of short videos that highlights notable members from the university. [...]

“Ciencia sin Ficción” Show: “Project helps understand brain functioning through high resolution images”

The "Ciencia Sin Ficción" (Science without Fiction) show made a report about the research developed by researcher Pamela Guevara, where [...]

Load More Posts
2020-08-14T20:24:41-03:00

This Is A Custom Widget

This Sliding Bar can be switched on or off in theme options, and can take any widget you throw at it or even fill it with your custom HTML Code. Its perfect for grabbing the attention of your viewers. Choose between 1, 2, 3 or 4 columns, set the background color, widget divider color, activate transparency, a top border or fully disable it on desktop and mobile.

This Is A Custom Widget

This Sliding Bar can be switched on or off in theme options, and can take any widget you throw at it or even fill it with your custom HTML Code. Its perfect for grabbing the attention of your viewers. Choose between 1, 2, 3 or 4 columns, set the background color, widget divider color, activate transparency, a top border or fully disable it on desktop and mobile.