Unleashing the Power of Neuroimaging for TheVirtualBrain

Published on June 15, 2022

Imagine you have a bunch of LEGO pieces, each representing a different aspect of the brain. Now imagine being able to put these pieces together in endless combinations to create unique and personalized brain models. That’s exactly what TheVirtualBrain-UK Biobank pipeline does! It takes various types of brain scans, like MRI or CT scans, and processes them into connectome-based modeling inputs that can be used with TheVirtualBrain platform. This pipeline is like a master builder, taking existing tools and adding new features and changes to make sure the brain models are accurate and versatile. It even includes quality control checks and support for different datasets so that researchers can confidently use the pipeline for both healthy and clinical populations. With this powerful tool, scientists can delve into the intricate network dynamics of the brain and better understand how individual differences impact brain health.

TheVirtualBrain, an open-source platform for large-scale network modeling, can be personalized to an individual using a wide range of neuroimaging modalities. With the growing number and scale of neuroimaging data sharing initiatives of both healthy and clinical populations comes an opportunity to create large and heterogeneous sets of dynamic network models to better understand individual differences in network dynamics and their impact on brain health. Here we present TheVirtualBrain-UK Biobank pipeline, a robust, automated and open-source brain image processing solution to address the expanding scope of TheVirtualBrain project. Our pipeline generates connectome-based modeling inputs compatible for use with TheVirtualBrain. We leverage the existing multimodal MRI processing pipeline from the UK Biobank made for use with a variety of brain imaging modalities. We add various features and changes to the original UK Biobank implementation specifically for informing large-scale network models, including user-defined parcellations for the construction of matching whole-brain functional and structural connectomes. Changes also include detailed reports for quality control of all modalities, a streamlined installation process, modular software packaging, updated software versions, and support for various publicly available datasets. The pipeline has been tested on various datasets from both healthy and clinical populations and is robust to the morphological changes observed in aging and dementia. In this paper, we describe these and other pipeline additions and modifications in detail, as well as how this pipeline fits into the TheVirtualBrain ecosystem.

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