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Updated: May 13, 2026

Whole-brain Segmentation and Change-point Analysis of Anatomical Brain MRI—Application in Premanifest Huntington's Disease
Published on: June 9, 2018
Altered Fractional Anisotropy in Early Huntington's Disease
Silky Singh1, Hasit Mehta, Robert Fekete
1Department of Psychiatry, New York Medical College, Valhalla, N.Y., USA.
Insights
Huntington's disease (HD) is a neurodegenerative disorder. Early MRI findings reveal caudate atrophy and altered diffusion in the caudate and putamen, indicating neurodegeneration.
Area of Science:
- Neuroscience
- Genetics
- Radiology
Background:
- Huntington's disease (HD) is an inherited neurodegenerative disorder.
- Characterized by chorea, mood, cognitive, and motor disturbances.
- Early diagnosis and understanding of subtle manifestations are crucial.
Observation:
- A mild case of Huntington's disease (HD) presented with depression and subtle neurological signs.
- Brain imaging, including MRI and diffusion tensor imaging (DTI), was performed.
- The study focused on early disease-course manifestations.
Findings:
- The bicaudate ratio, indicating caudate atrophy, was elevated.
- Increased fractional anisotropy in the caudate and putamen suggests neurodegeneration.
- These imaging biomarkers correlate with early-stage HD.
Implications:
- Early detection of Huntington's disease (HD) may be possible through subtle clinical and imaging findings.
- DTI may provide valuable insights into early neurodegenerative changes in HD.
- Further research into imaging biomarkers can aid in monitoring disease progression and therapeutic interventions.
Abstract:
Huntington's disease (HD) is a dominantly inherited neurodegenerative disease best known for chorea. The disorder includes numerous other clinical features including mood disorder, eye movement abnormalities, cognitive disturbance, pendular knee reflexes, motor impersistence, and postural instability. We describe a mild case of HD early in the disease course with depression and subtle neurological manifestations. In addition, we review MRI and diffusion tensor imaging features in this patient. The bicaudate ratio, a measure of caudate atrophy, was increased. Fractional anisotropy values of the bilateral caudate and putamen were increased, signifying neurodegeneration of these structures in HD.
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