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CAT: a computational anatomy toolbox for the analysis of structural MRI data.

Literature Information

DOI10.1093/gigascience/giae049
PMID39102518
JournalGigaScience
Impact Factor3.9
JCR QuartileQ1
Publication Year2024
Times Cited466
KeywordsAlzheimer’s disease, CAT12, MRI, ROI, SPM12
Literature TypeJournal Article
ISSN2047-217X
Issue13()
AuthorsChristian Gaser, Robert Dahnke, Paul M Thompson, Florian Kurth, Eileen Luders, The Alzheimer's Disease Neuroimaging Initiative

TL;DR

The article presents the Computational Anatomy Toolbox (CAT), a comprehensive and user-friendly suite for brain morphometric analyses that caters to users of all expertise levels. By offering a full analysis workflow—including preprocessing, statistical analysis, and visualization—CAT aims to standardize and enhance brain imaging analysis in neuroscience research.

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Alzheimer’s disease · CAT12 · MRI · ROI · SPM12

Abstract

A large range of sophisticated brain image analysis tools have been developed by the neuroscience community, greatly advancing the field of human brain mapping. Here we introduce the Computational Anatomy Toolbox (CAT)-a powerful suite of tools for brain morphometric analyses with an intuitive graphical user interface but also usable as a shell script. CAT is suitable for beginners, casual users, experts, and developers alike, providing a comprehensive set of analysis options, workflows, and integrated pipelines. The available analysis streams-illustrated on an example dataset-allow for voxel-based, surface-based, and region-based morphometric analyses. Notably, CAT incorporates multiple quality control options and covers the entire analysis workflow, including the preprocessing of cross-sectional and longitudinal data, statistical analysis, and the visualization of results. The overarching aim of this article is to provide a complete description and evaluation of CAT while offering a citable standard for the neuroscience community.

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Primary Questions Addressed

  1. What specific morphometric analyses can be performed using CAT, and how do they compare to other available tools?
  2. How does CAT ensure the quality control of MRI data during the preprocessing stage?
  3. What are the advantages of using a graphical user interface in CAT for beginners versus scripting for advanced users?
  4. Can CAT be integrated with other neuroimaging software, and if so, what are the potential benefits of such integration?
  5. How does CAT handle longitudinal data analysis differently than cross-sectional data analysis in terms of workflow and statistical methods?

Key Findings

Research Background and Objectives

The study introduces the Computational Anatomy Toolbox (CAT), a sophisticated suite of tools designed for brain morphometric analyses, particularly focusing on structural MRI data. CAT aims to enhance the accessibility and functionality of neuroimaging analysis for users ranging from beginners to experts. The overarching goal is to provide a comprehensive tool that integrates preprocessing, statistical analysis, and visualization of MRI data.

Main Methods/Materials/Experimental Design

CAT operates primarily within the SPM (Statistical Parametric Mapping) environment and is compatible with MATLAB. The software is designed to facilitate both voxel-based and surface-based morphometric analyses, with the following key components:

  1. Voxel-Based Processing:

    • Tissue Segmentation: Involves denoising (using SANLM), unified segmentation, and local intensity transformation.
    • Spatial Registration: Utilizes Geodesic Shooting for aligning tissue segments to standardized templates.
  2. Surface-Based Processing:

    • Surface Creation: Estimates cortical thickness and creates surface meshes.
    • Surface Registration: Maps individual surfaces to standard templates.
  3. Region-Based Morphometry (RBM): Analyzes regions of interest (ROIs) using standardized atlases.

The following Mermaid code illustrates the processing pipeline:

Mermaid diagram

Key Results and Findings

  1. Performance: CAT demonstrated superior performance in processing speed and sensitivity in detecting neuroimaging effects, even in the presence of noise.
  2. Application Example: Analyzed data from Alzheimer’s disease patients, revealing significant atrophy in gray matter volume and cortical thickness, particularly in regions associated with the default mode network.
  3. Quality Control: Multiple quality control options were integrated, allowing for the assessment of image quality and outlier detection.

Main Conclusions/Significance/Innovation

CAT represents a significant advancement in neuroimaging analysis by providing a user-friendly interface coupled with powerful analytical capabilities. Its ability to handle both cross-sectional and longitudinal data, along with integrated quality control measures, positions it as a central tool in the field of neuroscience. The toolbox's flexibility and comprehensive nature facilitate a wide range of morphometric analyses, making it a valuable resource for both research and clinical applications.

Research Limitations and Future Directions

  • Limitations: The study primarily focuses on structural imaging; while some features may extend to functional imaging, further development is needed for broader applications.
  • Future Directions: Future enhancements could include improved integration with non-SPM software, additional features for functional MRI analysis, and the potential expansion of CAT’s capabilities to handle larger datasets effectively.

Summary Table

AspectDetails
ToolComputational Anatomy Toolbox (CAT)
Main FeaturesVoxel-based and surface-based morphometry, quality control, longitudinal analysis, and user-friendly interface
Key FindingsSuperior performance in sensitivity and processing speed; significant findings in Alzheimer’s disease data
LimitationsPrimarily focused on structural imaging; further development needed for functional MRI analysis
Future DirectionsBroader applications in functional imaging, integration with other software, and handling larger datasets

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Literatures Citing This Work

  1. Divergent brain changes in two audiogenic rat strains: A voxel-based morphometry and diffusion tensor imaging comparison of the genetically epilepsy prone rat (GEPR-3) and the Wistar Audiogenic Rat (WAR). - Yichien Lee;Olga C Rodriguez;Chris Albanese;Victor Rodrigues Santos;José Antônio Cortes de Oliveira;Ana Luiza Ferreira Donatti;Artur Fernandes;Norberto Garcia-Cairasco;Prosper N'Gouemo;Patrick A Forcelli - Neurobiology of disease (2018)
  2. Age-Related Gray and White Matter Changes in Normal Adult Brains. - Farnaz Farokhian;Chunlan Yang;Iman Beheshti;Hiroshi Matsuda;Shuicai Wu - Aging and disease (2017)
  3. Assessing the marks of change: how psychotherapy alters the brain structure in women with borderline personality disorder. - Falk Mancke;Ruth Schmitt;Dorina Winter;Inga Niedtfeld;Sabine C Herpertz;Christian Schmahl - Journal of psychiatry & neuroscience : JPN (2018)
  4. The association between brain volume, cortical brain infarcts, and physical frailty. - Ilse M J Kant;Jeroen de Bresser;Simone J T van Montfort;Ellen Aarts;Jorrit-Jan Verlaan;Norman Zacharias;Georg Winterer;Claudia Spies;Arjen J C Slooter;Jeroen Hendrikse; - Neurobiology of aging (2018)
  5. Lead-DBS v2: Towards a comprehensive pipeline for deep brain stimulation imaging. - Andreas Horn;Ningfei Li;Till A Dembek;Ari Kappel;Chadwick Boulay;Siobhan Ewert;Anna Tietze;Andreas Husch;Thushara Perera;Wolf-Julian Neumann;Marco Reisert;Hang Si;Robert Oostenveld;Christopher Rorden;Fang-Cheng Yeh;Qianqian Fang;Todd M Herrington;Johannes Vorwerk;Andrea A Kühn - NeuroImage (2019)
  6. Dream Recall Frequency Is Associated With Medial Prefrontal Cortex White-Matter Density. - Raphael Vallat;Jean-Baptiste Eichenlaub;Alain Nicolas;Perrine Ruby - Frontiers in psychology (2018)
  7. Apparent diffusion coefficient changes in human brain during sleep - Does it inform on the existence of a glymphatic system? - Şükrü Barış Demiral;Dardo Tomasi;Joelle Sarlls;Hedok Lee;Corinde E Wiers;Amna Zehra;Tansha Srivastava;Kenneth Ke;Ehsan Shokri-Kojori;Clara R Freeman;Elsa Lindgren;Veronica Ramirez;Gregg Miller;Peter Bandettini;Silvina Horovitz;Gene-Jack Wang;Helene Benveniste;Nora D Volkow - NeuroImage (2019)
  8. Empirical examination of the replicability of associations between brain structure and psychological variables. - Shahrzad Kharabian Masouleh;Simon B Eickhoff;Felix Hoffstaedter;Sarah Genon; - eLife (2019)
  9. HIV infection and age effects on striatal structure are additive. - Erin E O'Connor;Timothy Zeffiro;Oscar L Lopez;James T Becker;Thomas Zeffiro - Journal of neurovirology (2019)
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