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Cerebral Microstructure Analysis by Diffusion-Based MRI in Systemic Lupus Erythematosus: Lessons Learned and Research
Ettore Silvagni1, Alessandra Bortoluzzi1, Massimo Borrelli2
1Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Azienda Ospedaliero-Universitaria Sant'Anna, 44124 Cona, Italy.
Brain Sciences
|January 21, 2022
Summary
Diffusion MRI techniques like DWI and DTI reveal white matter density loss in systemic lupus erythematosus (SLE), particularly with neuropsychiatric involvement. These findings highlight microstructural brain changes in SLE patients.
Area of Science:
- Neuroimaging
- Neurology
- Radiology
Background:
- Systemic lupus erythematosus (SLE) can affect the brain, leading to neuropsychiatric (NP) complications.
- Understanding cerebral microstructure alterations in SLE is crucial for diagnosis and management.
- Diffusion MRI techniques offer insights into tissue microarchitecture.
Purpose of the Study:
- To review the application of diffusion-weighted imaging (DWI) and diffusion-tensor imaging (DTI) in assessing cerebral microstructure in SLE.
- To summarize current evidence on DWI/DTI findings in SLE, with and without NP involvement.
- To discuss future research directions in this field.
Main Methods:
- Review of existing literature on DWI and DTI studies in SLE patients.
- Analysis of water molecule diffusion patterns in cerebral white matter.
- Integration of findings from advanced MRI techniques and brain connectomics.
Main Results:
- DWI and DTI studies indicate reduced water diffusion in cerebral white matter (WM) in SLE patients.
- This suggests a global loss of WM density, often associated with NP involvement.
- Brain connectome analysis reveals structural disruption in WM networks.
Conclusions:
- DWI and DTI are valuable tools for evaluating cerebral microstructural changes in SLE.
- These techniques can help identify WM alterations, especially in cases with NP involvement.
- Further research combining advanced MRI methods is needed to fully elucidate SLE pathogenesis.
