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Updated: Jun 7, 2026

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
Published on: July 28, 2013
Diffusion-weighted magnetic resonance imaging in acute reversible toxic leukoencephalopathy: A report of two cases
S Sivasubramanian1, Srikant Moorthy, Kp Sreekumar
1Department of Radiology, Amrita Institute of Medical Sciences, Elamakkara, Cochin - 682 041, India.
Abstract:
Acute toxic leukoencephalopathy may be caused by endogenous or exogenous toxins. It may reverse clinically if the offending agent is withdrawn or the underlying condition is treated. However, demonstration of reversibility on imaging, especially with diffusion-weighted MRI, has been reported only very recently. We report two such cases.
Insights
Acute toxic leukoencephalopathy can be reversed by removing the toxin or treating the cause. This study shows new evidence of this reversal on diffusion-weighted MRI, offering hope for patients.
Area of Science:
- Neuroscience
- Radiology
- Toxicology
Background:
- Acute toxic leukoencephalopathy is a rare neurological condition.
- It is caused by exposure to various toxins, either internally produced or externally sourced.
- Clinical recovery is possible with prompt intervention.
Observation:
- This study presents two cases of acute toxic leukoencephalopathy.
- The patients experienced neurological symptoms due to toxic exposure.
- Imaging findings were crucial in diagnosing and monitoring the condition.
Findings:
- Reversibility of acute toxic leukoencephalopathy was demonstrated using advanced imaging techniques.
- Diffusion-weighted magnetic resonance imaging (dMRI) was particularly effective in visualizing the resolution of brain lesions.
- This imaging evidence supports the potential for recovery in affected individuals.
Implications:
- The findings highlight the importance of diffusion-weighted MRI in assessing treatment response and prognosis.
- Early diagnosis and intervention can lead to significant clinical and radiological improvement.
- This research contributes to a better understanding of toxic encephalopathies and their management.

