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Cerebral atrophy in multiple system atrophy by MRI
1Department of Neurology, Higashi Nagoya National Hospital, 5-101 Umemorizaka, Meito, Nagoya, Japan. holly@amitaj.or.jp
Journal of the Neurological Sciences
|February 17, 2000
Summary
Multiple system atrophy (MSA) patients exhibit significantly smaller cerebral areas compared to healthy individuals. Progressive cerebral atrophy in MSA is linked to disease duration, not age, and occurs across all subtypes.
Area of Science:
- Neurology
- Radiology
Background:
- Multiple system atrophy (MSA) is a neurodegenerative disorder.
- Cerebral atrophy is a known feature, but its progression and relationship with disease duration require further investigation.
Purpose of the Study:
- To investigate cerebral atrophy in patients with multiple system atrophy (MSA) using cranial magnetic resonance imaging (MRI).
- To determine the rate of cerebral atrophy progression and its correlation with disease duration and age in MSA patients.
Main Methods:
- Cranial MRI scans were analyzed for 40 MSA patients and 61 age-matched controls.
- Cerebral areas were measured and compared between groups.
- The rate of cerebral atrophy was calculated over a 1-year period for a subset of patients.
Main Results:
- MSA patients showed significantly smaller cerebral areas (131.95 cm²) compared to controls (149.01 cm²).
- Progressive cerebral atrophy was observed in all 23 MSA cases studied over one year, with an average rate of 2.46%/year.
- Atrophy progression correlated more strongly with disease duration (r=-0.634) than with age (r=-0.421).
- No significant differences in atrophy were found between MSA subtypes or genders.
Conclusions:
- Cranial MRI findings indicate progressive cerebral atrophy in multiple system atrophy (MSA).
- This cerebral atrophy is common across all MSA subtypes and is more closely related to the duration of the disease than to the patient's age.