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Updated: Oct 1, 2025
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DTI of the Visual Pathway - White Matter Tracts and Cerebral Lesions
Published on: August 26, 2014
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Altered White Matter Integrity in Patients with Retinal Vein Occlusion: A Diffusion Tensor Imaging and Tract-Based
Mou-Xin Zhang1,2, Min-Jie Chen3, Li-Ying Tang4
1Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, China.
Disease Markers
|March 7, 2022
Summary
Retinal vein occlusion (RVO) patients show white matter alterations, including lower fractional anisotropy (FA) and higher radial diffusivity (RD). These changes correlate with visual and psychological issues, suggesting neurological impacts.
Area of Science:
- Neuroimaging
- Ophthalmology
- Neurology
Background:
- Retinal vein occlusion (RVO) is a condition affecting blood vessels in the retina.
- Understanding the neurological consequences of RVO is crucial for comprehensive patient care.
Purpose of the Study:
- To investigate white matter microstructural changes in RVO patients using diffusion tensor imaging (DTI).
- To identify specific white matter tracts affected by RVO and their correlation with clinical symptoms.
Main Methods:
- Diffusion tensor imaging (DTI) was performed on 14 RVO patients and 14 healthy controls (HCs).
- Tract-based spatial statistics (TBSS) was employed to analyze white matter integrity.
- Fractional anisotropy (FA) and radial diffusivity (RD) were measured and analyzed using receiver operating characteristic (ROC) curves and correlation analysis.
Main Results:
- RVO patients exhibited significantly lower mean FA and higher mean RD values compared to HCs.
- Affected white matter regions included the posterior thalamic, sagittal stratum, corpus callosum, cingulum, and fornix.
- FA and RD values showed significant correlations with visual and psychological impairments.
Conclusions:
- Tract-based spatial statistics (TBSS) is effective in detecting white matter alterations in RVO.
- These findings highlight potential underlying neurological mechanisms contributing to RVO symptoms.
