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MRI Features of Stroke-Like Episodes in Mitochondrial Encephalomyopathy With Lactic Acidosis and Stroke-Like Episodes
Weiqin Cheng1, Yuting Zhang1, Ling He1
1Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing, China.
Abstract:
Mitochondrial myopathy encephalopathy lactic acidosis and stroke-like episodes (MELAS) is an important cause of stroke-mimicking diseases that predominantly affect patients before 40 years of age. MELAS results from gene mutations in either mitochondrial DNA (mtDNA) or nuclear DNA (nDNA) responsible for the wide spectrum of clinical symptoms and imaging findings. Neurological manifestations can present with stroke-like episodes (the cardinal features of MELAS), epilepsy, cognitive and mental disorders, or recurrent headaches. Magnetic resonance imaging (MRI) is an important tool for detecting stroke-like lesions, accurate recognition of imaging findings is important in guiding clinical decision making in MELAS patients. With the development of neuroimaging technologies, MRI plays an increasingly important role in course monitoring and efficacy assessment of the disease. In this article, we provide an overview of the neuroimaging features and the application of novel MRI techniques in MELAS syndrome.
Insights
Mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) is a genetic disorder causing stroke-like episodes before age 40. Neuroimaging, particularly MRI, is crucial for diagnosis and monitoring this condition.
Area of Science:
- Neurology
- Genetics
- Radiology
Background:
- Mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) is a significant cause of stroke-mimicking conditions.
- Primarily affecting individuals under 40, MELAS stems from mitochondrial DNA (mtDNA) or nuclear DNA (nDNA) gene mutations.
Purpose of the Study:
- To provide an overview of the neuroimaging features associated with MELAS syndrome.
- To highlight the application of novel MRI techniques in the diagnosis and management of MELAS.
Main Methods:
- Review of neuroimaging findings in MELAS patients.
- Discussion of the role of Magnetic Resonance Imaging (MRI) in detecting stroke-like lesions.
- Exploration of advanced MRI techniques for disease monitoring.
Main Results:
- Neurological manifestations include stroke-like episodes, epilepsy, cognitive disorders, and headaches.
- Accurate recognition of MRI findings is vital for clinical decision-making in MELAS.
- MRI is increasingly important for monitoring disease progression and treatment efficacy.
Conclusions:
- Neuroimaging, especially MRI, is essential for diagnosing and managing MELAS.
- Novel MRI techniques offer advanced capabilities for understanding and tracking MELAS.
- Early and accurate imaging diagnosis aids in better patient management and outcomes.
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