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MRI of the brain in diabetes mellitus
Abstract:
We studied the MRI appearances of the brain in 159 patients with diabetes mellitus (DM) and 2566 age-matched individuals without DM (controls). The images were reviewed for cerebral infarcts, hemorrhage, atrophy and subcortical arteriosclerotic encephalopathy. Cerebral atrophy was significantly more frequent in patients with DM than in controls (P > 0.005) from the sixth to the eighth decade. The frequency of atrophy was 41.2% in the 6th decade, 60.0% in the 7th and 92.3% in the 8th decade in DM, and 19.8%, 38.9% and 56.8% respectively in controls. Unexpectedly, there was no statistically significant difference in the incidences of cerebrovascular diseases at any age.
Insights
Diabetes mellitus (DM) is linked to increased cerebral atrophy, particularly in older adults. However, this study found no significant difference in cerebrovascular disease incidence between diabetic and non-diabetic individuals.
Area of Science:
- Neurology
- Radiology
- Endocrinology
Background:
- Diabetes mellitus (DM) is a systemic disease affecting multiple organs.
- Cerebrovascular diseases are a significant concern in diabetic patients.
- Brain MRI is crucial for assessing neurological changes.
Purpose of the Study:
- To investigate the association between diabetes mellitus and brain MRI findings.
- To compare the prevalence of cerebral infarcts, hemorrhage, atrophy, and subcortical arteriosclerotic encephalopathy in diabetic patients versus controls.
Main Methods:
- Retrospective analysis of brain MRI scans.
- Inclusion of 159 patients with diabetes mellitus and 2566 age-matched controls.
- Systematic review of MRI for specific neuropathological findings.
Main Results:
- Cerebral atrophy was significantly more frequent in patients with DM compared to controls (P > 0.005) from the sixth to the eighth decade.
- Atrophy prevalence in DM patients: 41.2% (6th), 60.0% (7th), and 92.3% (8th decade).
- Atrophy prevalence in controls: 19.8% (6th), 38.9% (7th), and 56.8% (8th decade).
- No statistically significant difference in cerebrovascular disease incidence between groups.
Conclusions:
- Diabetes mellitus is associated with a higher prevalence of cerebral atrophy, especially in older age groups.
- The study did not find a link between diabetes and increased incidence of cerebrovascular diseases based on MRI findings.
- Further research may be needed to elucidate the complex relationship between DM and brain health.