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Related Experiment Videos

A tensor based morphometry study of longitudinal gray matter contraction in FTD.

Simona M Brambati1, Natasha C Renda, Katherine P Rankin

  • 1Memory and Aging Center, UCSF Department of Neurology, 350 Parnassus Ave, Suite 706, San Francisco, CA 94143, USA.

Neuroimage
|March 14, 2007
PubMed
Summary

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Frontotemporal dementia (FTD) causes gray matter loss in key brain regions over one year. Tensor based morphometry (TBM) effectively tracks this progression, aiding in understanding FTD

Area of Science:

  • Neuroimaging
  • Neurology
  • Medical Research

Background:

  • Frontotemporal dementia (FTD) is a neurodegenerative disorder marked by behavioral changes and brain atrophy.
  • Identifying progressive atrophy patterns is crucial for understanding FTD.
  • Current methods may not fully capture the longitudinal changes in FTD.

Purpose of the Study:

  • To utilize tensor based morphometry (TBM) to detect and quantify longitudinal gray matter atrophy in FTD patients.
  • To compare atrophy progression in FTD patients against healthy controls over a one-year period.
  • To assess the utility of TBM in tracking FTD progression.

Main Methods:

  • Acquired T1-weighted MRI scans at baseline and 1-year follow-up from 12 FTD patients and 12 controls.
  • Applied TBM to estimate voxel-wise regional tissue volume changes from image warping.

Related Experiment Videos

  • Conducted both whole-brain and region-of-interest (ROI) analyses with specified statistical thresholds.

    • Main Results:

    • Whole-brain analysis revealed significant atrophy in the anterior cingulate/paracingulate gyri over one year.
    • ROI analysis identified significant longitudinal changes in the left ventro-medial frontal cortex, right medial superior frontal gyrus, anterior insulae, and left amygdala/hippocampus.
    • These findings indicate progressive gray matter loss in limbic and paralimbic areas in FTD.

    Conclusions:

    • Limbic and paralimbic regions demonstrate measurable gray matter contraction in FTD over one year.
    • The observed atrophy patterns correlate with typical FTD behavioral symptoms.
    • TBM shows promise as a tool for monitoring regional atrophy progression in FTD.