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Updated: Aug 16, 2026
Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
Published on: July 28, 2013
Marchiafava-Bignami disease: diffusion-weighted MRI in corpus callosum and cortical lesions
1Service de Neuroradiologie, Hôpital Pellegrin, CHU Bordeaux, France. patrice.menegon@chu-bordeaux.fr
Abstract:
The clinical diagnosis of Marchiafava-Bignami disease (MBD) can be difficult. Acute demyelination of the corpus callosum is characteristic of the disease. The authors report the use of MR diffusion-weighted imaging (DWI) in six cases of acute MBD. They show that apparent diffusion coefficient restriction of the corpus callosum and cortical lesions were associated with a higher mortality rate and more severe cognitive sequelae.
Insights
Diagnosing Marchiafava-Bignami disease (MBD) is challenging. Diffusion-weighted imaging (DWI) reveals corpus callosum abnormalities, with restricted diffusion linked to worse outcomes and higher mortality in acute MBD cases.
Area of Science:
- Neurology
- Radiology
- Neuroimaging
Background:
- Marchiafava-Bignami disease (MBD) is a rare neurological disorder.
- Clinical diagnosis of MBD can be challenging.
- Acute demyelination of the corpus callosum is a hallmark of MBD.
Purpose of the Study:
- To evaluate the utility of MR diffusion-weighted imaging (DWI) in diagnosing acute MBD.
- To correlate DWI findings with clinical outcomes in MBD patients.
Main Methods:
- Retrospective analysis of six acute MBD cases.
- Utilized MR diffusion-weighted imaging (DWI).
- Assessed apparent diffusion coefficient (ADC) restriction in the corpus callosum and cortical lesions.
Main Results:
- Apparent diffusion coefficient (ADC) restriction was observed in the corpus callosum.
- Cortical lesions also showed ADC restriction.
- ADC restriction in these areas correlated with increased mortality and severe cognitive deficits.
Conclusions:
- MR diffusion-weighted imaging (DWI) is a valuable tool for diagnosing acute MBD.
- Diffusion abnormalities in the corpus callosum and cortex are associated with poor prognosis in MBD.
- DWI findings can help predict mortality and cognitive sequelae in MBD.
