Related Experiment Video
Updated: Aug 15, 2025
09:33
Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
Published on: July 28, 2013
28.5K
Brain microstructural changes in essential tremor patients and correlations with clinical characteristics: a
Jinyu Lu1,2, Cheng Zhou3, Jiali Pu2
1Department of Neurology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, Zhejiang, China.
Journal of Neurology
|January 7, 2023
Summary
Essential tremor (ET) involves widespread gray and white matter microstructural changes, correlating with tremor and cognitive deficits. These findings support a neurodegenerative basis for ET, offering insights into its underlying mechanisms.
Area of Science:
- Neuroscience
- Neurology
- Medical Imaging
Background:
- Essential tremor (ET) is a common movement disorder with unclear pathophysiology.
- Understanding ET's mechanisms is crucial for developing effective treatments.
Purpose of the Study:
- To investigate microstructural degeneration in gray matter (GM) and white matter (WM) in ET patients.
- To explore correlations between these microstructural changes, tremor severity, and cognitive function.
Main Methods:
- Diffusion kurtosis imaging (DKI) was used to assess microstructural integrity in 63 ET patients and 63 healthy controls (HCs).
- Voxel-wise analysis compared diffusion parameters between groups.
- Tremor severity and cognitive performance were evaluated.
Main Results:
- ET patients showed significantly reduced mean kurtosis in temporal, parietal, occipital lobes, and cerebellum, and lower radial kurtosis in specific white matter tracts.
- These microstructural alterations in GM and WM were associated with tremor and cognitive scores.
- No significant volume differences were observed between ET and HC groups.
Conclusions:
- The study indicates extensive GM and WM microstructural alterations in ET, supporting a neurodegenerative hypothesis.
- Findings enhance understanding of the mechanisms driving tremor and cognitive impairment in Essential Tremor.
