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Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

Deformation-based morphometry reveals brain atrophy in frontotemporal dementia.

Valerie A Cardenas¹, Adam L Boxer, Linda L Chao

¹Magnetic Resonance Unit, San Francisco Veterans Affairs Medical Center, CA 94121, USA. valerie.cardenas-nicolson@ucsf.edu

Archives of Neurology

|June 15, 2007

Summary

Frontotemporal dementia (FTD) is associated with significant brain atrophy, particularly in the frontal and temporal lobes, white matter, and subcortical regions like the thalamus. These findings help understand FTD

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Three-Dimensional Shape Modeling and Analysis of Brain Structures

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Published on: November 14, 2019

Area of Science:

Neuroimaging
Neurology
Brain Anatomy

Background:

Frontotemporal dementia (FTD) is a neurodegenerative disorder characterized by progressive changes in behavior, language, and executive function.
Understanding the specific patterns of brain atrophy in FTD is crucial for diagnosis and treatment development.

Purpose of the Study:

To compare brain anatomy between individuals with FTD and healthy controls using deformation-based morphometry.
To identify specific brain regions affected by atrophy in FTD.

Main Methods:

Structural magnetic resonance imaging (MRI) was used to scan 22 FTD patients and 22 age-matched healthy controls.
Deformation-based morphometry was applied to analyze local anatomical size differences.
Analysis of covariance was employed to compare brain structures between groups, controlling for head size.

Main Results:

Significant frontal lobe atrophy was observed in FTD patients, affecting both gray and white matter.
Anterior temporal lobe atrophy was also noted, though less significant than frontal atrophy.
Substantial atrophy was found in subcortical regions, including the thalamus, pons, and colliculi.

Conclusions:

The study confirms frontal and anterior temporal gray matter atrophy in FTD.
White matter loss, thalamic involvement, and midbrain atrophy align with pathological findings in advanced FTD.
Dysfunction in ventral-frontal-brainstem circuits may contribute to FTD's clinical manifestations.